JP6414972B2 - Ion exchange resin filling method, ion exchange resin filling device, and ion exchange resin storage method - Google Patents

Description

  The present invention relates to an ion exchange resin filling method, an ion exchange resin filling device, and an ion exchange resin storage method.

The ion exchange resin is usually in a state in which the chemicals and unpolymerized substances (hereinafter also referred to as “impurities”) used during the production remain in the state after the production. It is known that this impurity elutes at the beginning of use of the ion exchange resin.
Ion exchange resins are used in a wide variety of applications such as the production of pure water and ultrapure water and the purification of substances in the chemical industry. For example, in the production of ultrapure water for semiconductor cleaning, the elution of impurities from the ion exchange resin affects the quality of the semiconductor product to be cleaned. Therefore, in a field where the influence of impurities is a concern, the ion exchange resin is further subjected to a purification treatment after its production to remove the impurities. In a strong basic anion exchange resin, the counter ion is usually converted to OH ⁻ by a purification treatment, and becomes a so-called OH-type strong basic anion exchange resin.

Ion exchange resin is stored in a double layer using a single-layer polyethylene resin bag on the inside and a fiber drum or plastic drum on the outside from the viewpoints of preventing contamination, ease of handling, and cost reduction. It was common to use packaging materials.
On the other hand, in order to prevent the performance deterioration of the ion exchange resin during storage, the use of a film having low oxygen permeability as a packaging material has been proposed and put into practical use. For example, Patent Document 1 describes that by using a packaging material having a low oxygen gas permeability, oxidation of a strongly basic anion exchange resin or a strongly acidic cation exchange resin is suppressed, and storage stability is improved. Has been.

JP-A-8-53162

However, when packaging materials having low oxygen permeability are uniformly used as described in Patent Document 1 in order to enhance the storage stability of the ion exchange resin, there arises a problem that costs increase.
The present invention provides an ion exchange resin filling method and a filling device that can store an ion exchange resin in a state in which performance is maintained for a long period of time, and can also reduce the cost for storage. Let it be an issue. Moreover, this invention makes it a subject to provide the storage method of an ion exchange resin which can store an ion exchange resin in the state which maintained the performance for a long term, and can also reduce the cost concerning storage.

  The present inventors have made extensive studies in view of the above problems. As a result, depending on the type of ion exchange resin, the type of packaging material that can be stored while maintaining the performance of the ion exchange resin over a long period of time varies, and depending on the type of ion exchange resin, better storage stability can be achieved with a cheaper packaging material. I found out that I can realize sex. That is, it has been found that the ion exchange resin can be stored at a low cost and with excellent storage stability by using a specific combination of the type of ion exchange resin and the type of packaging material. The present invention has been further studied based on these findings and has been completed.

The above-described problems of the present invention have been solved by the following means.
[1]
According to the oxygen functionality of the ion exchange resin, the ion exchange resin is filled in an oxygen-permeable plastic packaging material suitable for the ion exchange resin, enabling stable storage of the ion exchange resin. A filling method ,
OH type II type strongly basic anion exchange resin is filled in a plastic packaging material with oxygen permeability of 100 ml / (m ² · atm · day) or less, and strongly basic anion exchange resins other than OH type II type are used. Filling a plastic packaging material having an oxygen permeability of 1000 ml / (m ² · atm · day) or more .
[ 2 ]
Filling the ion-exchange resin with an oxygen-permeable plastic packaging material suitable for the oxygen functionality of the ion-exchange resin and filling the ion-exchange resin to enable stable storage of the ion-exchange resin A method,
A mixed bed resin containing OH type II type strongly basic anion exchange resin is filled in a plastic packaging material having an oxygen permeability of 100 ml / (m ² · atm · day) or less, and strongly basic other than OH type II type. the anion exchange resin comprises filling the oxygen permeability ^{1000ml / (m 2 · atm ·} day) or more plastic packaging, filling method of ion exchange resins.
[ 3 ]
Step A for identifying the type of ion exchange resin;
Process B for identifying the type of plastic packaging material,
Step C of filling the plastic packaging material with the ion exchange resin when the type of the ion exchange resin specified in Step A and the type of the plastic packaging material specified in Step B are matched. A method of filling ion exchange resin.
[ 4 ]
When the type of ion exchange resin specified in step A matches the type of plastic packaging material specified in step B, the type of ion exchange resin specified in step A is OH type II It is a mixed-bed resin containing a strongly basic anion exchange resin or OH type II type strongly basic anion exchange resin, and the type of plastic packaging material specified in Step B is oxygen-permeable 100 ml / (m ² · atm -Day) The filling method of the ion exchange resin as described in [ 3 ] including the case where it is the following plastic packaging materials.
[ 5 ]
When the type of ion exchange resin specified in step A matches the type of plastic packaging material specified in step B, the type of ion exchange resin specified in step A is OH type I type. Strongly basic anion exchange resin, CL type I type strongly basic anion exchange resin or CL type II type strongly basic anion exchange resin, the type of plastic packaging material specified in step B is oxygen permeable The method for filling an ion exchange resin according to [ 3 ] or [ 4 ], including a case of a plastic packaging material of 1000 ml / (m ² · atm · day) or more.
[ 6 ]
Ion exchange resin having a determination unit for determining compatibility between the type of ion exchange resin and the type of plastic packaging material, and a filling unit for filling the plastic packaging material with the ion exchange resin according to the determination result in the determination unit A filling device of
The determination unit specifies a means a for specifying the type of ion exchange resin;
Identifying means b for identifying the type of plastic packaging material;
Filling with ion exchange resin, comprising: determination means c for determining compatibility between the type Ka of the ion exchange resin specified by the specification means a and the type Kb of the plastic packaging material specified by the specification means b apparatus.
[ 7 ]
The determination means c is a mixed bed resin in which the Ka includes an OH form II type strongly basic anion exchange resin or an OH form II type strongly basic anion exchange resin, and the Kb has an oxygen permeability of 100 ml / (m ² · atm · day) The ion-exchange resin filling device according to [ 6 ], in which Ka and Kb are determined to be suitable when the plastic packaging material is equal to or less than ² .
[ 8 ]
In the determination means c, the Ka is an OH type I type strongly basic anion exchange resin, a CL type I type strongly basic anion exchange resin, or a CL type II type strongly basic anion exchange resin, and the Kb is The ion exchange resin filling device according to [ 6 ] or [ 7 ], wherein Ka and Kb are determined to be suitable in the case of a plastic packaging material having an oxygen permeability of 1000 ml / (m ² · atm · day) or more.
[ 9 ]
According to the oxygen functionality of the ion exchange resin, according to the oxygen functionality of the ion exchange resin, an oxygen permeable plastic packaging material suitable for filling and storing the ion exchange resin ,
When the ion exchange resin is an OH type II strong basic anion exchange resin or a mixed bed resin containing an OH type II strong basic anion exchange resin, the oxygen permeability is 100 ml / (m ² · atm · day) Fill and store the following plastic packaging materials, and
When the ion exchange resin is OH type I type strongly basic anion exchange resin, CL type I type strongly basic anion exchange resin, or CL type II type strongly basic anion exchange resin, oxygen permeability is A method for storing an ion exchange resin, which is filled and stored in a plastic packaging material of 1000 ml / (m ² · atm · day) or more .

The filling method of the ion exchange resin of the present invention makes it possible to store the ion exchange resin in a state in which performance is maintained for a long time, and also enables cost reduction related to storage.
By using the ion-exchange resin filling device of the present invention, it becomes possible to store the ion-exchange resin in a state in which the performance is maintained for a long period of time, and to reduce the cost for storage.
According to the ion exchange resin storage method of the present invention, the ion exchange resin can be stored in a state where performance is maintained for a long period of time, and the cost for storage can be reduced.

FIG. 1 is a drawing schematically showing a preferred embodiment of the filling apparatus of the present invention. FIG. 2 is a flowchart showing a determination method in the determination unit of the filling apparatus of FIG. FIG. 3 is a drawing schematically showing another preferred embodiment of the filling apparatus of the present invention. FIG. 4 is a flowchart showing a determination method in the determination unit of the filling apparatus of FIG. It is a graph which shows the result of Test example 1 in an example. It is a graph which shows the result of Test example 2 in an example. It is a graph which shows the result of the test example 3 in an Example. It is a graph which shows the result of the test example 4 in an Example. It is a graph which shows the result of Test Example 5 in an example. It is a graph which shows the result of the test example 6 in an Example.

The ion-exchange resin filling method of the present invention (hereinafter simply referred to as “the filling method of the present invention”) is made of an oxygen-permeable plastic that conforms to the oxygen functionality according to the oxygen functionality of the ion-exchange resin. This is a filling method in which a packing material (made of resin) is filled, thereby enabling stable storage of the ion exchange resin.
In the present specification, the “oxygen functionality” of an ion exchange resin means a property that the ion exchange capacity of the ion exchange resin decreases due to the interaction between the ion exchange resin and oxygen.
In this specification, the “packaging material” means a bag-shaped packaging material that can be filled with an ion exchange resin. The “plastic packaging material” means that at least one layer of the packaging material is formed of plastic. In the present specification, the term “packaging material” means a plastic packaging material unless otherwise specified.
When the packaging material has a multilayer structure of two or more layers, the materials constituting each layer may be the same as or different from each other.

In the filling method of the present invention, the ion exchange resin to be filled is not particularly limited. That is, the ion exchange resin to be filled may be an anion exchange resin or a cation exchange resin, and both an anion exchange resin and a cation exchange resin may be filled. The ion exchange resin to be filled may contain a mixed bed resin.
The anion exchange resin is one or more selected from weakly basic anion exchange resins and strong basic anion exchange resins, and the cation exchange resins are weakly acidic cation exchange resins and strongly acidic cation exchange resins. One or more selected from cation exchange resins.
In particular, in the filling method of the present invention, the ion exchange resin to be filled preferably includes a strongly basic anion exchange resin or a mixed bed resin containing a strongly basic anion exchange resin. The resin preferably contains a type II strong basic anion exchange resin or a mixed bed resin containing a type II strong basic anion exchange resin.

Strongly basic anion exchange resins are anion exchange resins having a quaternary ammonium group as a functional group. Type I (when the group binding to nitrogen is only an alkyl group) and Type II (group binding to nitrogen) Present a hydroxyalkyl group).
In addition, the strongly basic anion exchange resin has, for example, a form having OH ⁻ (OH form) and a form having Cl ⁻ (CL form) as counter ions of a quaternary ammonium group which is a functional group. is there.
The ion exchange resin to be filled in the present invention is preferably a mixed bed resin containing OH form II type strongly basic anion exchange resin or OH form II type strongly basic anion exchange resin, and other than OH form II type. And at least a strongly basic anion exchange resin.
As the mixed bed resin containing the above OH type II type strongly basic anion exchange resin, for example, OH type II type strongly basic anion exchange resin, strong acid cation exchange resin, weak acid cation exchange resin, Mention may be made of mixed-bed resins in which one or more selected from type I strong basic anion exchange resins and weak basic anion exchange resins are mixed.

In a more preferred embodiment of the filling method of the present invention, the ion exchange resin to be filled contains a strongly basic anion exchange resin, and the OH Form II type strongly basic anion exchange resin has an oxygen permeability of 100 ml / ( m ² · atm · day) or less (preferably 0.1 to 85 ml / (m ² · atm · day)), and a strongly basic anion exchange resin other than OH form II type is used for oxygen permeation. Filling a packaging material having a property of 1000 ml / (m ² · atm · day) or more (preferably 1500 to 5000 ml / (m ² · atm · day)). In this case, the ion exchange resins to be filled are more preferably all strongly basic anion exchange resins. In this case, the strongly basic anion exchange resin is preferably an OH form II type strongly basic anion exchange resin or a strongly basic anion exchange resin other than the OH form II type. The strongly basic anion exchange resin other than OH form II is preferably OH form I, CL form I, and / or CL form II.

In another more preferred embodiment of the filling method of the present invention, a mixed bed resin containing OH Form II type strongly basic anion exchange resin has an oxygen permeability of 100 ml / (m ² · atm · day) or less ( Preferably, 0.1 to 85 ml / (m ² · atm · day)) is packed in a packaging material, and a strongly basic anion exchange resin other than OH form II type has an oxygen permeability of 1000 ml / (m ² · atm. Day) or more (preferably 1500 to 5000 ml / (m ² · atm · day)). The strongly basic anion exchange resin other than OH form II is preferably OH form I, CL form I, and / or CL form II.

In yet another more preferred embodiment of the filling method of the present invention, each of mixed bed resins containing OH Form II type strongly basic anion exchange resin and OH Form II type strongly basic anion exchange resin is used for oxygen permeation. Packed in a packaging material having a capacity of 100 ml / (m ² · atm · day) or less (preferably 0.1 to 85 ml / (m ² · atm · day)), and strongly basic anion exchange other than OH type II Filling the packaging material with an oxygen permeability of 1000 ml / (m ² · atm · day) or more (preferably 1500 to 5000 ml / (m ² · atm · day)). The strongly basic anion exchange resin other than OH form II is preferably OH form I, CL form I, and / or CL form II.

Oxygen permeability ^{100ml / (m 2 · atm ·} day) following packaging material is not particularly limited as long as it can be an oxygen permeability of the packaging material and ^{100ml / (m 2 · atm ·} day) or less. For example, the packaging material can be made of thick plastic, the packaging material can be a multi-layer structure, or a plastic with low oxygen permeability can be adopted as the packaging material, so that the oxygen permeability of the packaging material is 100 ml / (m ² · atm · day) or less. As a packaging material having an oxygen permeability of 100 ml / (m ² · atm · day) or less, for example, a three-layer packaging material including nylon layer (trade name: Triple Nylon, manufactured by MICS Chemical Co., Ltd.), nylon and polyethylene A packaging material (trade name: Eslap AL, manufactured by Star Plastic Industry Co., Ltd .; product name: Speren, manufactured by Ube Film Co., Ltd .; product name: Hylaminer NX, manufactured by Chlorine Chemical Co., Ltd.) Can do.

The oxygen permeability of ^{1000ml / (m 2 · atm ·} day) or more packaging material is not particularly limited as long as it can be an oxygen permeability of the packaging material and ^{1000ml / (m 2 · atm ·} day) or more . As a packaging material having an oxygen permeability of 1000 ml / (m ² · atm · day) or more, for example, a low density polyethylene packaging material (trade name: polyethylene bag, manufactured by Toyo Polymer Co., Ltd .; trade name: UBE polyethylene, Ube) Maruzen Polyethylene Co., Ltd.).

  In this specification, oxygen permeability is a value measured according to JIS K7126-2.

A packaging material having an oxygen permeability of 1000 ml / (m ² · atm · day) or more is less expensive than a packaging material having an oxygen permeability of 100 ml / (m ² · atm · day) or less. By using more packaging materials of 1000 ml / (m ² · atm · day) or more, cost performance related to storage can be maximized.
Up to now, there has been no idea of changing the type of packaging material according to the type of ion exchange resin, and it has been usual to use the same packaging material uniformly regardless of the type of ion exchange resin. Further, as described in Patent Document 1, it is normal for those skilled in the art that it is difficult to store an ion exchange resin in a state in which performance is maintained for a long time unless a packaging material having low oxygen permeability is used. It was recognition. Under such circumstances, the present inventors have found that depending on the type of ion exchange resin, even a low-cost packaging material with high oxygen permeability can ensure good storage stability over a long period of time, and depending on the type of ion exchange resin, The present invention has been made based on the idea that by using different packaging materials, both storage stability and cost reduction can be achieved.
In the filling method of the present invention, as a method for filling an ion exchange resin into a packaging material having different oxygen permeability according to its oxygen functionality, a method including the following steps A to C can be specifically mentioned.
(Process A)
Step of identifying the type of ion exchange resin (Step B)
Process for identifying the type of packaging material (Process C)
The step of filling the packaging material with the ion exchange resin when the type of the ion exchange resin identified in the step A and the type of the packaging material identified in the step B are compatible.

  There is no restriction | limiting in the order of the said process A and B, the process B may be implemented after the process A, the process A may be implemented after the process B, and the process A and the process B may be performed simultaneously. .

In Step C, when the type of ion exchange resin specified in Step A and the type of packaging material specified in Step B are compatible, the type of ion exchange resin specified in Step A is OH type II strong basic anion exchange resin or mixed bed resin containing OH type II strong basic anion exchange resin, the type of packaging material specified in step B has an oxygen permeability of 100 ml / ( m ² · atm · day) or less is preferable.
Moreover, in the said process C, when the kind of ion exchange resin specified by the said process A and the kind of packaging material specified by the said process B are suitable, the kind of ion exchange resin specified by the process A Is OH type I type strongly basic anion exchange resin, CL type I type strongly basic anion exchange resin or CL type II type strongly basic anion exchange resin, and the type of packaging material specified in step B However, it is preferable to include a case where the oxygen permeability is 1000 ml / (m ² · atm · day) or more.

The filling method of the present invention can be partially or entirely automated using the filling apparatus of the present invention.
The filling device of the present invention includes a determination unit that determines compatibility between the type of ion exchange resin and the type of packaging material, and a filling unit that fills the packaging material with ion exchange resin according to the determination result in the determination unit. .
The determination unit includes a specifying unit a for specifying the type of ion exchange resin, a specifying unit b for specifying the type of packaging material, a type Ka of the ion exchange resin specified by the specifying unit a, and the specifying unit b. Determining means c for determining compatibility with the type Kb of the packaging material specified in.

  In the determination unit, the specifying means a for specifying the type of ion exchange resin is not particularly limited as long as the type of ion exchange resin can be specified. As the specifying means a, for example, a resin information input device for inputting the type of ion exchange resin, a resin information reading device for reading an ion exchange resin identification mark (bar code, QR code (registered trademark), character, symbol, etc.), etc. Can be mentioned.

  In the determination unit, the specifying unit b for specifying the type of the packaging material is not particularly limited as long as the type of the packaging material can be specified. As the specifying means b, for example, a packaging material information input device for inputting the type of packaging material, a packaging material information reading device for reading a packaging material identification mark (bar code, QR code (registered trademark), character, symbol, etc.), etc. Can be mentioned.

In the determination unit, in the determination unit c that determines the compatibility between the type Ka of the ion exchange resin specified by the specification unit a and the type Kb of the packaging material specified by the specification unit b, Ka and Kb are determined. Then, it is determined whether or not the type of ion exchange resin and the type of packaging material are applicable. The determination unit c may have a function of transmitting a signal corresponding to the determination result to the filling unit as necessary and operating the filling unit based on the determination result.
The ion exchange resins to be filled are OH type I type, CL type I type, OH type II type and CL type II type strong basic anion exchange resins, and OH type II type strong basic anion exchange resins. Taking the case of including a mixed bed resin containing as an example, when Ka and Kb correspond to any of the following combinations (1) to (5), it is determined that Ka and Kb are compatible, and Ka When Kb and Kb do not correspond to any of the following combinations (1) to (5), it is determined that Ka and Kb do not match.
(1) Ka: OH Form I strongly basic anion exchange resin
Kb: oxygen permeability of 1000 ml / (m ² · atm · day) or more (2) Ka: CL type I strongly basic anion exchange resin
Kb: oxygen permeability of 1000 ml / (m ² · atm · day) or more (3) Ka: CL type II strongly basic anion exchange resin
Kb: Oxygen permeability of 1000 ml / (m ² · atm · day) or more (4) Ka: OH type II type strongly basic anion exchange resin
Kb: Oxygen permeability of 100 ml / (m ² · atm · day) or less (5) Ka: Mixed bed resin containing OH type II type strongly basic anion exchange resin
Kb: Oxygen permeability is 100 ml / (m ² · atm · day) or less

Preferred embodiments of the filling device of the present invention will be described below, but the present invention is not limited to these embodiments.
1 and 3 are schematic views for facilitating the understanding of the filling device of the present invention, and the size and relative size relationship of each member or device are changed for convenience of explanation. It does not indicate the actual relationship as it is. Further, the matters other than those defined in the present invention are not limited to the outer shape, shape, relative positional relationship, and the like shown in these drawings.

A preferred embodiment of the filling apparatus of the present invention (hereinafter also referred to as “Embodiment I”) is shown in FIG. In Embodiment I, the filling device 100 includes a determination unit and a filling unit. The determination unit includes a resin information input unit 1a as the specifying unit a and a packaging material information reading unit 1b as the specifying unit b, and further includes the resin information input to the resin information input unit 1a and the packaging It has the information determination part 1c as the determination means c which determines the compatibility with the packaging material information read by the material information reading part 1b.
In the embodiment I, the filling device 100 includes a packaging material set shelf 3 in which the packaging material 5 is set. Further, the packaging material 5 is taken out from the packaging material set shelf 3, and the removed packaging material 5 is removed from the resin filling valve 10. It has the arm machine 4 for arrange | positioning in the lower part. In Embodiment I, the packaging material set shelf 3 and the arm machine 4 are combined with the ion exchange resin filling hopper 6, the metering tank introduction pipe 7, the resin filling valve 8, the metering machine 9, the resin filling valve 10, and the packaging material 5. Thus, the filling part is configured.

The operation of the filling device of Embodiment I will be described.
The packaging material 5 is set in advance on the packaging material set shelf 3 so as to be removable by the arm machine 4. On the surface of the packaging material 5, a barcode capable of discriminating packaging material information such as the material and capacity of the packaging material 5 is printed in advance.

  Resin information such as the type information of the ion exchange resin to be filled and the filling amount of the ion exchange resin is input to the resin information input unit 1a. The input resin information is sent to the information determination unit 1c.

  Subsequently, the ion exchange resin to be filled is charged from the top of the ion exchange resin filling hopper 6. The charged ion exchange resin moves to the upper part of the resin filling valve 8 through the measuring tank introduction pipe 7. Thereafter, the resin filling valve 8 is opened, and the ion exchange resin moves to the weighing machine 9. When a predetermined amount of ion exchange resin moves to the meter according to the filling amount information included in the resin information, the resin filling valve 8 is closed.

  Next, the packaging material 5 set on the packaging material set shelf 3 is set below the resin filling valve 10 by the arm machine 4. Thereafter, the packaging material information reading unit 1b reads the barcode printed on the surface of the packaging material 5 set in the lower part of the resin filling valve 10, and the obtained packaging material information is sent to the information determination unit 1c.

  The information determination unit 1c compares the type information of the ion exchange resin included in the resin information and the packaging material information. When the type information of the ion exchange resin and the packaging material information match, the information determination unit 1c responds accordingly. A signal is sent to the resin filling valve 10. Upon receipt of this signal, the resin filling valve 10 is opened, and the ion exchange resin moves from the weighing machine 9 into the packaging material 5 set at the lower part of the resin filling valve 10, and into the packaging material 5. Is filled. If the packaging material information and the resin information do not match, the resin filling valve 10 is not opened. In this case, an alarm or the like for prompting confirmation may be displayed on the resin information input unit 1a.

  After the ion exchange resin is filled in the packaging material 5, the resin filling valve 10 is closed and the filling is completed. The filled ion exchange resin is transferred to the resin loading place by the belt conveyor 11. In FIG. 1, an arrow shown below the belt conveyor 11 indicates the moving direction of the belt conveyor 11.

  FIG. 2 shows an example of a flowchart showing a determination method in the determination unit of the embodiment I.

Another preferred embodiment (hereinafter also referred to as “embodiment II”) of the filling apparatus of the present invention is shown in FIG. As shown in FIG. 3, in the embodiment II, the filling device 200 includes a determination unit and a filling unit. The determination unit includes a resin information input unit 21a as the specifying unit a and a packaging material information reading unit 21b as the specifying unit b, and further includes the resin information input to the resin information input unit 21a and the packaging It has the information determination part 21c as the determination means c which determines the compatibility with the packaging material information read by the material information reading part 21b. In the embodiment II, the packaging material information reading unit 21b is attached to the arm machine 24 as shown in FIG.
In the embodiment II, the filling device 200 has a packaging material set shelf 23 in which the packaging materials 25a and 25b are set. Further, the packaging material 25a or 25b is taken out from the packaging material set shelf 23 and the taken out packaging material 25a or 25b The arm machine 24 for arrange | positioning 25b to the lower part of the resin filling valve 30 is provided. In the embodiment II, the packaging material set shelf 23 and the arm part 24 include an ion exchange resin filling hopper 26, a metering tank introduction pipe 27, a resin filling valve 28, a weighing machine 29, a resin filling valve 30, and packaging materials 25a and 25b. Together with the above-mentioned filling section.

The operation of the filling device of Embodiment II will be described.
The packaging materials 25 a and 25 b are set in advance on the packaging material set shelf 23 so as to be removable by the arm machine 24. On the surfaces of the packaging materials 25a and 25b, barcodes capable of discriminating packaging material information such as the material and capacity of the packaging materials 25a and 25b are printed in advance.
Resin information such as the type information of the ion exchange resin to be filled and the filling amount of the ion exchange resin is input to the resin information input unit 21a. The input resin information is sent to the information determination unit 21c.

  Subsequently, the ion exchange resin to be filled is introduced from the upper part of the ion exchange resin filling hopper 26. The charged ion exchange resin moves to the upper part of the resin filling valve 28 through the measuring tank introduction pipe 27. Thereafter, the resin filling valve 28 is opened, and the ion exchange resin moves to the meter 29. When a predetermined amount of ion exchange resin moves to the meter according to the filling amount information included in the resin information, the resin filling valve 28 is closed.

Next, the arm machine 24 moves to the packaging material set shelf 23, the barcode on the surface of the packaging material 25a is read by the packaging material information reading unit 21b attached to the arm machine 24, and the obtained packaging material information is used as the information determination unit. 21c.
The information determination unit 21c compares the type information of the ion exchange resin included in the resin information and the packaging material information. When the packaging material information and the resin information are matched, the information determination unit 21c sends a signal corresponding thereto to the arm machine 24. And sent to the resin filling valve 30. Upon receiving this signal, the arm machine 24 takes out the packaging material 25 a determined to be suitable from the packaging material set shelf 23 and sets it under the resin filling valve 30. Next, the resin filling valve 30 that has received the signal is opened, the ion exchange resin moves from the meter 29 into the packaging material 25a, and the packaging material 25a is filled with the ion exchange resin.

On the other hand, when the type information of the ion exchange resin and the packaging material information of the packaging material 25a do not match, the packaging material information reading unit 21b reads the barcode on the surface of the packaging material 25b, and the obtained packaging material information is The information is sent to the information determination unit 21c.
The information determination unit 21c compares the ion exchange resin type information and the packaging material information. When the ion exchange resin type information and the packaging material information match, the information determination unit 21c sends a signal corresponding thereto to the arm machine 24 and the resin filling. Send to valve 30. Upon receiving this signal, the arm machine 24 takes out the packaging material 25b determined to be suitable from the packaging material set shelf 23 and sets it under the resin filling valve 30. Next, the resin filling valve 30 that has received the signal is opened, the ion exchange resin moves from the meter 29 into the packaging material 25b, and the packaging material 25b is filled with the ion exchange resin.

  After filling, the resin filling valve 30 is closed, and filling of the packaging material is completed. The filled ion exchange resin is transferred to the resin loading place by the belt conveyor 31. In FIG. 3, an arrow shown below the belt conveyor 31 indicates the moving direction of the belt conveyor 31.

  When the packaging material information of the packaging material 25b and the resin information do not match, an alarm for prompting confirmation may be displayed on the resin information input unit 21a. Further, an oxygen-permeable packaging material 25c (not shown) different from the packaging materials 25a and 25b is set on the packaging material set shelf 23, and the packaging material information of the packaging material 25c and the type information of the ion exchange resin are set. If the suitability is determined and matched, the packaging material 25c may be filled with the ion exchange resin in the same manner as described above.

  FIG. 4 shows an example of a flowchart showing a determination method in the determination unit of the embodiment II.

  In addition to the above-described embodiments, the filling device of the present invention includes aspects in which various modifications are made to the above-described embodiments based on the knowledge of those skilled in the art.

  In the filling method of the present invention, the packaging material filled with the ion exchange resin is sealed and stored by heat sealing or the like. It is desirable to perform this sealing so that air does not remain in the packaging material as much as possible.

The storage method of the ion exchange resin of the present invention is a method in which the packing material is filled with the ion exchange resin by the filling method of the present invention and stored. The storage environment in the storage method of the present invention is not particularly limited as long as the temperature is around room temperature. Moreover, in order to prevent the photodecomposition etc. of an ion exchange resin, it is preferable to store in the state which interrupted | blocked the light into a packaging material.
The storage method of the present invention makes it possible to store the ion exchange resin for a long period of time while maintaining its performance.

  EXAMPLES Hereinafter, although this invention is demonstrated further in detail based on an Example, this invention is not limited to the following Example.

[Test Example 1] Storage stability test of ion exchange resin-1
As an ion exchange resin, 30 ml of Amberlite IRA410 (OH) -HGM (trade name, manufactured by Organo, OH type II type strongly basic ion exchange resin) is used as a three-layer packaging material containing nylon (trade name: Triple) Nylon (NYL), manufactured by MICS Chemical Co., Ltd., oxygen permeability: 70 ml / (m ² · atm · day)), the packaging material was heat sealed and stored in a dark place for a certain period. The ion exchange capacity before and after storage was measured.
In this example, the ion exchange capacity of the ion exchange resin is “Revised third edition of the technology and application of the ion exchange resin (basic edition)”, published March 31, 2002, p. It is a neutral salt decomposition capacity (mg equivalent / ml) measured according to the method described on pages 170 to 175. An outline of the procedure will be described. First, an ion exchange resin (about 25 mL) is packed in a column. Flow 250 mL of 1N hydrochloric acid through the column at 18-20 mL / min. Subsequently, after washing | cleaning by flowing 2000 mL of pure waters at 18-20 mL / min, the amount of ion exchange resin is measured by volume. 450 mL of 1N sodium nitrate is flowed at a flow rate of 9 to 10 mL / min, and the eluate is recovered (recovered solution A). The amount of chloride ions in the recovered liquid A is measured by a silver nitrate titration method (Mole method) using potassium chromate and a silver nitrate solution.

Ion exchange capacity (neutral salt decomposition capacity) (mg equivalent / mL resin)
= Amount of chloride ion (collected liquid A) (mg equivalent) / Amount of resin (mL)

The results are shown in FIG. As shown in FIG. 5, even after 180 days of storage, no decrease in ion exchange capacity was observed, and the initial performance was maintained.

[Test Example 2] Storage stability test 2 of ion exchange resin
In Test Example 1, the packaging material was replaced with a packaging material having a five-layer structure including a nylon layer (trade name: Speren, manufactured by Ube Film Co., Ltd., oxygen permeability: 85 ml / (m ² · atm · day)). Except for the above, the ion exchange capacity before and after storage was measured in the same manner as in Test Example 1 above.
The results are shown in FIG. As shown in FIG. 6, even after 180 days of storage, no decrease in ion exchange capacity was observed, and the initial performance was maintained.

[Test Example 3] Storage stability test of ion exchange resin-3
In Test Example 1, the packaging material was replaced with a polyethylene single-layer packaging material (trade name: polyethylene bag, manufactured by Toyo Polymer Co., Ltd., oxygen permeability: 3500 ml / (m ² · atm · day)). Except for the above, the ion exchange capacity before and after storage was measured in the same manner as in Test Example 1 above.
The results are shown in FIG. As shown in FIG. 7, it was found that the ion exchange capacity decreased several days after storage, and the ion exchange capacity significantly decreased after 180 days.

[Test Example 4] Storage stability test 4 of ion exchange resin
In Test Example 3 described above, Amberlite IRA410CL (trade name, manufactured by Organo Corp., CL-form II type strongly basic ion exchange resin) was used in place of Amberlite IRA410 (OH) -HGM as the ion exchange resin. Measured the ion exchange capacity before and after storage in the same manner as in Test Example 3 above.
The results are shown in FIG. As shown in FIG. 8, even after 180 days of storage, there was almost no decrease in ion exchange capacity, and the initial performance was maintained.

[Test Example 5] Storage stability test of ion exchange resin-5
In Test Example 3, instead of Amberlite IRA410 (OH) -HGM, Amberlite IRA400 (OH) (trade name, manufactured by Organo Corporation, OH Form I type strongly basic ion exchange resin) is used as the ion exchange resin. Except that, the ion exchange capacity before and after storage was measured in the same manner as in Test Example 3 above.
The results are shown in FIG. As shown in FIG. 9, even after 200 days storage, the ion exchange capacity was hardly decreased, and the initial performance was maintained.

[Test Example 6] Storage stability test of ion exchange resin-6
In the above Test Example 3, instead of Amberlite IRA410 (OH) -HGM, Amberlite IRA400 (CL) (trade name, CL type I type strongly basic ion exchange resin, manufactured by Organo Co., Ltd.) is used as the ion exchange resin. Except that, the ion exchange capacity before and after storage was measured in the same manner as in Test Example 3 above.
The results are shown in FIG. As shown in FIG. 10, even after 200 days of storage, there was almost no decrease in ion exchange capacity, and the initial performance was maintained.

From the above results, in the strongly basic anion exchange resin, in order to stably store the OH-form II type resin for a long period of time, a packaging material having an oxygen permeability of 100 ml / (m ² · atm · day) or less However, it was found that OH-type I, CL-type I, and CL-type II resins show good storage stability even with inexpensive packaging materials with high oxygen permeability.

100, 200 Filling device 1a, 21a Resin information input section (identification means a)
1b, 21b Packaging material information reading unit (specification means b)
1c, 21c Information determination unit (determination means c)
3, 23 Packaging material set shelf 4, 24 Arm machine 5, 25a, 25b Packaging material 6, 26 Ion exchange resin filling hopper 7, 27 Measuring tank introduction pipe 8, 28 Resin filling valve 9, 29 Measuring machine 10, 30 Resin Filling valve 11, 31 Belt conveyor

Claims (9)

The ion exchange resin, depending on the oxygen functionality of the ion exchange resin was packed in oxygen-permeable plastic packaging material adapted to it, Louis-exchange resin to allow stable storage of the ion-exchange resin A filling method of
OH type II type strongly basic anion exchange resin is filled in a plastic packaging material with oxygen permeability of 100 ml / (m ² · atm · day) or less, and strongly basic anion exchange resins other than OH type II type are used. Filling a plastic packaging material having an oxygen permeability of 1000 ml / (m ² · atm · day) or more . Filling the ion-exchange resin with an oxygen-permeable plastic packaging material suitable for the oxygen functionality of the ion-exchange resin and filling the ion-exchange resin to enable stable storage of the ion-exchange resin A method,
A mixed bed resin containing OH type II type strongly basic anion exchange resin is filled in a plastic packaging material having an oxygen permeability of 100 ml / (m ² · atm · day) or less, and strongly basic other than OH type II type. the anion exchange resin comprises filling the oxygen permeability ^{1000ml / (m 2 · atm ·} day) or more plastic packaging, filling method of ion exchange resins. Step A for identifying the type of ion exchange resin;
Process B for identifying the type of plastic packaging material,
Step C of filling the plastic packaging material with the ion exchange resin when the type of the ion exchange resin specified in Step A and the type of the plastic packaging material specified in Step B are matched. A method of filling ion exchange resin. When the type of ion exchange resin specified in step A matches the type of plastic packaging material specified in step B, the type of ion exchange resin specified in step A is OH type II It is a mixed-bed resin containing a strongly basic anion exchange resin or OH type II type strongly basic anion exchange resin, and the type of plastic packaging material specified in Step B is oxygen-permeable 100 ml / (m ² · atm -Day) The filling method of the ion exchange resin of Claim 3 including the case where it is the following plastic packaging materials. When the type of ion exchange resin specified in step A matches the type of plastic packaging material specified in step B, the type of ion exchange resin specified in step A is OH type I type. Strongly basic anion exchange resin, CL type I type strongly basic anion exchange resin or CL type II type strongly basic anion exchange resin, the type of plastic packaging material specified in step B is oxygen permeable The filling method of the ion exchange resin of Claim 3 or 4 including the case where it is a plastic packaging material of 1000 ml / (m < ² > * atm * day) or more. Ion exchange resin having a determination unit for determining compatibility between the type of ion exchange resin and the type of plastic packaging material, and a filling unit for filling the plastic packaging material with the ion exchange resin according to the determination result in the determination unit A filling device of
The determination unit specifies a means a for specifying the type of ion exchange resin;
Identifying means b for identifying the type of plastic packaging material;
Filling with ion exchange resin, comprising: determination means c for determining compatibility between the type Ka of the ion exchange resin specified by the specification means a and the type Kb of the plastic packaging material specified by the specification means b apparatus. The determination means c is a mixed bed resin in which the Ka includes an OH form II type strongly basic anion exchange resin or an OH form II type strongly basic anion exchange resin, and the Kb has an oxygen permeability of 100 ml / (m The ion-exchange resin filling device according to claim 6 , wherein Ka and Kb are determined to be suitable in the case of a plastic packaging material of ² · atm · day) or less. In the determination means c, the Ka is an OH type I type strongly basic anion exchange resin, a CL type I type strongly basic anion exchange resin, or a CL type II type strongly basic anion exchange resin, and the Kb is The ion-exchange resin filling device according to claim 6 or 7 , wherein when the plastic packaging material has an oxygen permeability of 1000 ml / (m ² · atm · day) or more, Ka and Kb are determined to be compatible. According to the oxygen functionality of the ion exchange resin, according to the oxygen functionality of the ion exchange resin, an oxygen permeable plastic packaging material suitable for filling and storing the ion exchange resin ,
When the ion exchange resin is an OH type II strong basic anion exchange resin or a mixed bed resin containing an OH type II strong basic anion exchange resin, the oxygen permeability is 100 ml / (m ² · atm · day) Fill and store the following plastic packaging materials, and
When the ion exchange resin is OH type I type strongly basic anion exchange resin, CL type I type strongly basic anion exchange resin, or CL type II type strongly basic anion exchange resin, oxygen permeability is A method for storing an ion exchange resin, which is filled and stored in a plastic packaging material of 1000 ml / (m ² · atm · day) or more .

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