AU757555B2 - Polymer-bonded granular adsorptive, absorptive, chemisorptive, or catalytically active material - Google Patents
Polymer-bonded granular adsorptive, absorptive, chemisorptive, or catalytically active material Download PDFInfo
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- AU757555B2 AU757555B2 AU86144/98A AU8614498A AU757555B2 AU 757555 B2 AU757555 B2 AU 757555B2 AU 86144/98 A AU86144/98 A AU 86144/98A AU 8614498 A AU8614498 A AU 8614498A AU 757555 B2 AU757555 B2 AU 757555B2
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- Australia
- Prior art keywords
- absorptive
- chemisorptive
- catalytically active
- active material
- polymer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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- 239000011149 active material Substances 0.000 title claims description 39
- 230000000274 adsorptive effect Effects 0.000 title claims description 37
- -1 polyethylene Polymers 0.000 claims description 22
- 239000004698 Polyethylene Substances 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 19
- 229920000573 polyethylene Polymers 0.000 claims description 19
- 239000011230 binding agent Substances 0.000 claims description 15
- 239000002245 particle Substances 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 12
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical group OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 10
- 229920003180 amino resin Polymers 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 9
- 229910052799 carbon Inorganic materials 0.000 claims description 6
- 238000002844 melting Methods 0.000 claims description 5
- 230000008018 melting Effects 0.000 claims description 5
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical group OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 3
- 229920001684 low density polyethylene Polymers 0.000 claims description 2
- 239000004702 low-density polyethylene Substances 0.000 claims description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 24
- 229920000642 polymer Polymers 0.000 description 8
- 239000011148 porous material Substances 0.000 description 7
- 229920001169 thermoplastic Polymers 0.000 description 7
- 239000003463 adsorbent Substances 0.000 description 6
- 229920002635 polyurethane Polymers 0.000 description 6
- 239000004814 polyurethane Substances 0.000 description 6
- 229920000877 Melamine resin Polymers 0.000 description 5
- 239000000758 substrate Substances 0.000 description 4
- 239000004640 Melamine resin Substances 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 238000009736 wetting Methods 0.000 description 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 239000004433 Thermoplastic polyurethane Substances 0.000 description 2
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 238000009827 uniform distribution Methods 0.000 description 2
- 240000007124 Brassica oleracea Species 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Inorganic materials [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 1
- ZOMBKNNSYQHRCA-UHFFFAOYSA-J calcium sulfate hemihydrate Chemical compound O.[Ca+2].[Ca+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZOMBKNNSYQHRCA-UHFFFAOYSA-J 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- VNWKTOKETHGBQD-AKLPVKDBSA-N carbane Chemical compound [15CH4] VNWKTOKETHGBQD-AKLPVKDBSA-N 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000013626 chemical specie Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000009969 flowable effect Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000011507 gypsum plaster Substances 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- GBMDVOWEEQVZKZ-UHFFFAOYSA-N methanol;hydrate Chemical compound O.OC GBMDVOWEEQVZKZ-UHFFFAOYSA-N 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000003232 water-soluble binding agent Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
Landscapes
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Description
S F Ref: 434746
AUSTRALIA
PATENTS ACT 1990 COMPLETE SPECIFICATION FOR A STANDARD PATENT
ORIGINAL
eooe ucoe *.1 *u r *r *c Name and Address of Applicant: Actual Inventor(s): Auergesellschaft GmbH Thiemannstrasse 1 D-12059 Berlin
GERMANY
Rudolf Nastke, Gerald Rafler, Helmut Remde, Thomas Krugerke, Gabriele Stadermann, Jannett Kohls, Martin Kurth, Dieter Lubkoll Spruson Ferguson, Patent Attorneys Level 33 St Martins Tower, 31 Market Street Sydney, New South Wales, 2000, Australia Polymer-bonded Granular Adsorptive, Absorptive, Chemisorptive, or Catalytically Active Material Address for Service: Invention Title: The following statement is a full description of this Invention, including the best method of performing it known to me/us:- 5845 1 Polymer-Bonded Granular Adsorptive, Absorptive, Chemisorptive, or Catalytically Active Material The invention pertains to a polymer-bonded granular absorptive, adsorptive, chemisorptive, or catalytically active material, which is produced by mixing the absorptive, adsorptive, chemisorptive, or s catalytically active fine-grained material with a finely particulate meltable polyethylene with the addition of a binding agent having an oligocondensate basis, as well as a process for producing moulded bodies from this material.
Moulded filter bodies with an adsorptive effect based on activated carbon are known in the prior art. The following substances are used as matrices for the activated carbon: open-pore foamed plastics phenoplasts polyurethanes plaster of Paris paper substrates carbon networks The basic principle underlying inventions of this type is that of introducing activated carbons the polymeric body or of forming a carbon matrix integral to the activated carbon itself (DE Al 41 455).
The solution described in DE C2 37 19419 uses open-pore foamed plastic as the substrate 20 material.
DE Al 39 25 693 suggests forming a three-dimensional matrix out of the carbon by coating it with a binding agent, but does not elaborate.
A similar solution is proposed in DE Al 38 135 64.
DE Al 41 40 455 describes a process for producing composite adsorbents which are 25 characterised by high abrasion resistance and consist of highly porous inorganic filler materials and a chemically resistant and. porous matrix. This is attained by carbonising the water-soluble binding agent, eg. preferably pitch acid.
DE U1 9115 610 also describes foamed plastics, preferably well foamed polyurethanes, into which the activated carbons are introduced.
According to EP Al 04 92 081, a mixture of cellulose, polyvinyl alcohol, and activated carbon is formed into a hexagonal body with a controlled pore size. The product is well suited for adsorbing aerial impurities, although it does not achieve satisfactory capacities.
DE Al 34 43 900 and DE C3 24 00 827 describe carbon-impregnated textiles and nonwoven fabrics. These solutions use special polymers with a polyurethane basis, eg. polyurethane fluoride and polytetrafluoroethylene urethane.
The Romanian patent RO 10 40 21 also describes a porous polyurethane support material containing granulated activated carbon in its pores. The granular material is produced by impregnation with a solution of 15 to 20% activated carbon powder and 15% binding agent, at which it is apparent that the capacities cannot be satisfactory here either.
C04146 2 Interesting processes tor producing moulded bodies out of activated carbon for use in gas masks are claimed in US 50 78 132, EP 03 09 277, and WO 94 03 270. These solutions describe a self-supporting porous gas filter material consisting of a moulded body containing defined particles of the adsorptive material and the thermoplastic binding agent. The individual particles are fused into a moulded filter body with open pores. It is characteristic of these solutions that the size of the binding particles is less than 20% of the average size of the adsorbent particles. The disadvantages are that satisfactory results with respect to air resistance and capacity are obtained only when thermoplastic polyurethane is used and that relatively high polymer components (ca. 20% of mass) are needed.
The disadvantages of all prior art solutions lie in the fact that when the polymer arid adsorbent particles are mixed, the phase distribution is always non-uniform for subsequent processing, and this has a strong adverse effect on the quality especially with respect to air resistance and product capacity.
Thermoplastic viscid polyurethanes are known for the technical difficulties associated with treating them and for an enormous cost factor in using them. The polymers generally make up 20% of 5is the product's mass and melting them results in considerable coverage of the adsorbent surface, which leads to significant losses in capacity and an increase in volume resistance. Moreover, suitable spraying of the thermoplastic polyurethane on the activated product also covers the active surface to a not inconsiderable extent and thereby reduces capacity.
DE Al 195 14 887 describes a solution for producing an adsorptive, pliable, filter sheet material 20 having a flexible sheet material as the base and polyolefins, among other things, mentioned but not elaborated upon for binding the adsorbent particles. On account of the textile substrate material, the solution is not suitable for producing moulded bodies of different shapes and is not comparable with the solution of the present invention which does not need substrate materials. The solution proposed in DE Al 42 38 142 contains porous bodies having absorptive properties and mentions polyolefins as 25 the binding agent but does not elaborate. The adsorbent particles and binding agent particles which it describes are of comparable sizes, so this does not compare with the solution of the present invention due to different separation problems.
The objective of the present invention was to develop a polymer-bonded granular adsorptive, absorptive, chemisorptive, or catalytically active material which is capable of forming an open-pore and sorptive foamed body at increased temperatures while not reducing the specific surface of the active material, and with a binding effect only during the mixing and processing phases, as well as a process for producing moulded bodies from this material.
The aim of the invention was to develop an adsorptive, absorptive, chemisorptive, or catalytically active material, and a technological process for producing moulded bodies from this material which overcome the disadvantages of the prior art and achieve higher capacity, simpler processing, and minimised costs for at least the same degree of mechanical stability.
The objective met with an unanticipated solution in that a thermoplastic polymer with a slight amount of coverage on the active surface was found along with a suitable binding agent by which optimal uniform distribution of the granular thermoplastic polymers in the active material is ensured and the polymer particles are bound to the granular active material for longer periods of processing, CO4146 while wetting of the active surface material is minimised with the binding agent entering a chemically inert state during the hardening process and thus minimising reduction in capacity for the active material.
According to a first embodiment of the invention there is provided a polymerbonded granular adsorptive, absorptive, chemisorptive, or catalytically active material, characterised by the fact, that an adsorptive, absorptive, chemisorptive, or catalytically active fine-grained material is mixed with a finely particulate, meltable polyethylene with the addition of a binding agent having an oligocondensate basis and processed.
According to a second embodiment of the invention there is provided a process for producing moulded bodies of a polymer-bonded granular adsorptive, absorptive, chemisorptive, or catalytically active material, characterised by the fact that, the meltable polyethylene is intensively wetted with the oligocondensate in a suitable mixing container; the fine-grained adsorptive, absorptive, chemisorptive, or catalytically active material is added; the mixture undergoes intensive mixing; the mixture is conveyed via a 15 suitable transport system to a processing machine; the mixture is formed into a body in 0 0the mould at temperatures of 90 to 180'C and at pressures of 0.0125 to 0.25bar/cm; and the moulded body is cooled in the mould and then released from the mould.
The invention also provides moulded bodies of a polymer-bonded granular adsorptive, absorptive, chemisorptive, or catalytically active material produced by the 20 process of the second embodiment of the invention.
._*Low-density polyethylene with a low melting point was determined by the invention to be a bow-coverage thermoplastic polymer on active materials. The 0:060: polyethylene enables a strong mechanical binding effect among the particles of the active material, so mechanical operations such as sawing, grinding, drilling, etc. can also be 0 25 performed on the finished moulded bodies.
The active surface of the active material is only minimally covered loss of specific surface). A polymer amount as low as 5% by mass of the active material enables sufficient mechanical stability of the moulded bodies for certain uses. The problem of efficient uniform distribution of the thermoplastic polymers in the active material over long periods of processing was solved by using a fixing agent having a modified amino resin oligocondensate basis. A melamine resin precondensate partially etherified with methanol and modified and neutralised with triethanolamine is especially advantageous for wetting the thermoplastic polymers with the aminoplast, for binding to the active "TsU material while minimally wetting it, and for inert behaviour following the thermal process. During the thermal treatment, the amino resin precondensate cross-links to [R:\LIBW]70619.doc:gxt 3a a polymethylene melamine while forming an open-pore, foam-like polymer with good sorptive properties due to its high specific surface (up to 300m2/g). These sorptive properties extend to gases, ions, and other chemical species such as oils, solvents, etc.
The fixing or binding agent used thus contributes to the creation of sorptive surfaces. It is important to use binding systems which contain no organic solvents, ie. to use water-dilutable amino resin precondensates.
If binding systems which contain organic solvents are used, the solvent components are instantaneously adsorbed on the active material, the binding or fixing components become dry, and the above-mentioned separation of components affects all subsequent processing. Water-dilutable systems, however, remain in a viscid, flowable state for a minimum of more than 120 minutes and thus can be easily processed over this period of time.
Experiments were run, for example, in which low-pressure polyethylene in particulate form (eg. Mw 35 000; MN 7700) with a melting point between 85 and 140°C ~15 was mixed with a melamine resin precondensate in a suitable container with a stirring apparatus. When the polyethylene is thoroughly mixed and wetted with the amino resin precondensate, one adds eg. a granular activated carbon and continues intensive mixing until uniform.
The mixture is then passed into any moulding device and formed at low S 20 pressures and temperatures of approximately 100 0 C. During this procedure, the amino resin components foam, cross-link, and cure, and at the same time the polyethylene body melts as polymer bridges are formed between the individual grains of activated carbon.
When cooled for a brief period of time and released from the mould, the result is a moulded body which can undergo mechanical processing.
25 The diagram shows the sorptive behaviour of activated carbon test bodies produced in accordance with this process and having the following dimensions: net weight 150-160g; height ca. 40 mm; and diameter 105mm.
[R:\L1BW]7061 9doc:gxt The following examples should illustrate but not limit the invention.
Example 1: Producing a melamine resin precondensate 279mL of formalin (30% mass, aqueous) are brought to pH 9 with a diluted sodium hydroxide solution and heated to a temperature of 80°C. Then 63g of melamine (5-triaminotriazine) are added.
The temperature rises to 94 00 during the reaction. When the melamine has been completely dissolved, the solution is cooled to 60 0 C, at which clouding can occur due to methylol compound deposits. At 60°C 270mL of methanol and 1.6mL of a hydrochloric acid and water mixture in a 1:1 ratio are added and allowed to reflux at this temperature for approximately 20 to 30 minutes. Then 6.3g of triethanolamine are added and a methanol-water mixture is distilled out azeotropically at under vacuum conditions (ca. 15torr) until a solid content of approx. 45% remains, after which 13.5g of urea are added for stabilisation.
After cooling, the resulting precondensate can be stored very well and possesses the required properties for the purposes here described.
Example 2: Producing the reaction mixture In a suitable container with a stirring or agitation apparatus, eg. 7.5g of polyethylene (finegrained, smp. 90-950C) and 5g of the amino resin precondensate according to example 1 are subjected to intensive mixing. Then 150g of activated carbon are added and intensive mixing is continued until uniformity and good flow capacities are evident. The product is passed to a suitable device, heated to 110°C and moulded at a pressure of from 0.0125 to 0.25bar/cm 2 This generates eg. moulded bodies with a height of between 25 and 50mm depending on the moulding pressure used and a diameter of 105mm.
Example 3: 25 The procedure is the same as in example 2, but 15g of polyethylene are used.
Example 4: The procedure is the same as in example 2, but 15g of amino resin precondensate are used.
C04146
Claims (18)
1. Polymer-bonded granular adsorptive, absorptive, chemisorptive, or catalytically active material, characterised by the fact, that an adsorptive, absorptive, chemisorptive, or catalytically active fine-grained material is mixed with a finely particulate, meltable polyethylene with the addition of a binding agent having an oligocondensate basis and processed.
2. Polymer-bonded granular adsorptive, absorptive, chemisorptive, or catalytically active material according to claim 1, characterised by the fact, that the finely particulate polyethylene which is used is a low-density polyethylene.
3. Polymer-bonded granular adsorptive, absorptive, chemisorptive, or catalytically active lo0 material according to claim 1 or claim 2, characterised by the fact, that the finely particulate polyethylene has a melting range of 85 to 130°C.
4. Polymer-bonded granular adsorptive, absorptive, chemisorptive, or catalytically active material according to claim 3, characterised by the fact, that the finely particulate polyethylene has a melting range of 90 to 115°C. 15
5. Polymer-bonded granular adsorptive, absorptive, chemisorptive, or catalytically active material according to any one of claims 1 to 4, characterised by the fact, that the finely particulate polyethylene has a particle size of from 1/10 to 1/2 of the particle size of the granular adsorptive, absorptive, chemisorptive, or catalytically active material.
6. Polymer-bonded granular adsorptive, absorptive, chemisorptive, or catalytically active 20 material according to claim 5, characterised by the fact, that the finely particulate polyethylene has a particle size of from 1/8 to 1/4 of the particle size of the granular adsorptive, absorptive, chemisorptive, or catalytically active material.
7. Polymer-bonded granular adsorptive, absorptive, chemisorptive, or catalytically active material according to any one of claims 1 to 6, characterised by the fact, that the polyethylene is 25 added at 5 to 30% of the mass of the granular adsorptive, absorptive, chemisorptive, or catalytically active material.
8. Polymer-bonded granular adsorptive, absorptive, chemisorptive, or catalytically active material according to claim 7, characterised by the fact, that the polyethylene is added at 7 to 20% of the mass of the granular adsorptive, absorptive, chemisorptive, or catalytically active material.
9. Polymer-bonded granular adsorptive, absorptive, chemisorptive, or catalytically active material according to any one of claims 1 to 8, characterised by the fact, that the binding agent used is an amino resin precondensate.
Polymer-bonded granular adsorptive, absorptive, chemisorptive, or catalytically active material according to any one of claims 1 to 9, characterised by the fact, that the binding agent used is an aqueous amino resin precondensate modified with triethanolamine and methanol.
11. Polymer-bonded granular adsorptive, absorptive, chemisorptive, or catalytically active material according to any one of claims 1 to 10, characterised by the fact, that the amount of binding agent is 10 to 80% of the mass of the polyethylene used. C04146
12. Polymer-bonded granular adsorptive, absorptive, chemisorptive, or catalytically active material according to claim 11, characterised by the fact, that the amount of binding agent is 30 to of the mass of the pblyethylene used.
13. Polymer-bonded granular adsorptive, absorptive, chemisorptive, or catalytically active material, substantially as hereinbefore described with reference to any one of the examples.
14. Process for producing moulded bodies of a polymer-bonded granular adsorptive, absorptive, chemisorptive, or catalytically active material, characterised by the fact, that the meltable polyethylene is intensively wetted with the oligocondensate in a suitable mixing container, the fine-grained adsorptive, absorptive, chemisorptive, or catalytically active material is added, the mixture undergoes intensive mixing, the mixture is conveyed via a suitable transport system to a processing machine, the mixture is formed into a body in the mould at temperatures.of 90 to 180°C and at pressures of 0.0125 to 0.25bar/cm, 15 the moulded body is cooled in the mould and then released from the mould.
Process according to claim 14, characterised by the fact, that the mixture is formed into a t.o body in the mould at temperatures of 90 to 180°C, preferably 100 to 140°C.
16. Process according to claim 14 or claim 15, characterised by the fact, that the mixture is formed into a body in the mould at pressures of 0.0225 to 0.0625 bar/cm 2 20
17. Process for producing moulded bodies of a polymer-bonded granular adsorptive, absorptive, chemisorptive, or catalytically active material, substantially as hereinbefore described with reference to any one of the examples.
18. Moulded bodies of a polymer-bonded granular adsorptive, absorptive, chemisorptive, or catalytically active material produced by the process of any one of claims 14 to 17. 25 Dated 18 September 1998 AUERGESELLSCHAFT GMBH 9. Patent Attorneys for the Applicant/Nominated Person SPRUSON&FERGUSON C04146
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU86144/98A AU757555B2 (en) | 1998-09-22 | 1998-09-22 | Polymer-bonded granular adsorptive, absorptive, chemisorptive, or catalytically active material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU86144/98A AU757555B2 (en) | 1998-09-22 | 1998-09-22 | Polymer-bonded granular adsorptive, absorptive, chemisorptive, or catalytically active material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU8614498A AU8614498A (en) | 2000-03-23 |
| AU757555B2 true AU757555B2 (en) | 2003-02-27 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU86144/98A Ceased AU757555B2 (en) | 1998-09-22 | 1998-09-22 | Polymer-bonded granular adsorptive, absorptive, chemisorptive, or catalytically active material |
Country Status (1)
| Country | Link |
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| AU (1) | AU757555B2 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4664683A (en) * | 1984-04-25 | 1987-05-12 | Pall Corporation | Self-supporting structures containing immobilized carbon particles and method for forming same |
| US4665050A (en) * | 1984-08-13 | 1987-05-12 | Pall Corporation | Self-supporting structures containing immobilized inorganic sorbent particles and method for forming same |
| US5147722A (en) * | 1989-02-23 | 1992-09-15 | Koslow Technologies Corporation | Process for the production of materials and materials produced by the process |
-
1998
- 1998-09-22 AU AU86144/98A patent/AU757555B2/en not_active Ceased
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4664683A (en) * | 1984-04-25 | 1987-05-12 | Pall Corporation | Self-supporting structures containing immobilized carbon particles and method for forming same |
| US4665050A (en) * | 1984-08-13 | 1987-05-12 | Pall Corporation | Self-supporting structures containing immobilized inorganic sorbent particles and method for forming same |
| US5147722A (en) * | 1989-02-23 | 1992-09-15 | Koslow Technologies Corporation | Process for the production of materials and materials produced by the process |
Also Published As
| Publication number | Publication date |
|---|---|
| AU8614498A (en) | 2000-03-23 |
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