AU2015290517B2 - Composition for forming mill scale briquette, and mill scale briquette - Google Patents
Composition for forming mill scale briquette, and mill scale briquette Download PDFInfo
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- AU2015290517B2 AU2015290517B2 AU2015290517A AU2015290517A AU2015290517B2 AU 2015290517 B2 AU2015290517 B2 AU 2015290517B2 AU 2015290517 A AU2015290517 A AU 2015290517A AU 2015290517 A AU2015290517 A AU 2015290517A AU 2015290517 B2 AU2015290517 B2 AU 2015290517B2
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
- C10L5/00—Solid fuels
- C10L5/40—Solid fuels essentially based on materials of non-mineral origin
- C10L5/48—Solid fuels essentially based on materials of non-mineral origin on industrial residues and waste materials
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- Oil, Petroleum & Natural Gas (AREA)
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- Manufacture And Refinement Of Metals (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
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Abstract
Disclosed are a composition for forming a mill scale briquette, and a mill scale briquette. The disclosed composition for forming a mill scale briquette comprises mill scale particles and, as a binder, a cellulose ether compound with viscosity of 4,000-80,000 cps.
Description
COMPOSITION FOR FORMING MILL SCALE BRIQUETTE, AND MILL SCALE BRIQUETTE
TECHNICAL FIELD [0001] The present disclosure relates to a composition for forming a mill scale briquette and a mill scale briquette, and more particularly, to a composition for forming a mill scale briquette, containing a cellulose ether compound having a certain viscosity range as a binder, and a mill scale briquette.
BACKGROUND ART [0002] Iron manufacturing processes are classified into an iron making process of preparing molten iron by charging iron ore and coal into a blast furnace, a steel making process of preparing molten steel of a high purity by removing impurities from the molten iron, a casting process of making a half-finished product such as solid slab from the non-solid molten steel, and a rolling process of making a final steel product by processing the half-finished product such as slab.
[0003] A large quantity of byproducts is produced from each process of the iron manufacturing processes. Mill wastes as byproducts from the iron manufacturing processes contain a large amount of iron oxide. Types of the mill wastes are mill scales, ore fines, blastfurnace dusts and the like.
[0004] Comparatively large particles of mill scales containing a considerable amount of iron oxide may be selected and reused in the iron making and steel making processes, while a pretreatment process is needed for comparatively small particles of mill scales before reuse.
[0005] Typical pretreatment processes of particular mill scales include a mill scale briquette making process of processing particulate mill scales into an article in the form of briquette. Most steel companies are reusing such particulate mill scales in the form of briquette.
[0006] To process particulate mill scales into an article in the form of briquette, a high-pressure equipment and a binder are required, and mostly molasse is used as the binder. However, when molasse is used as a binder, the following disadvantages may occur.
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2015290517 11 Dec 2018 [0007] Firstly, mill scale briquette obtained as a final product may have weak strength when molasse is used as the binder. Accordingly, a strength-reinforcing agent such as slaked lime (calcium hydroxide), bentonite, or a mixture thereof needs to be further added to enhance the strength of the mill scale briquette.
[0008] Secondly, with the recently growing of bioethanol industry, molasse may be confronted with a short supply and consequential price rise.
[0009] Furthermore, molasse also gives off bad odors during processes.
[0010] Additionally, molasse in a sticky liquid form may have an increasing viscosity with lowering temperature, and may stick to a storage tank, pipes and nozzles when stored, conveyed, and sprayed. To prevent these drawbacks, preventive equipments (for example, a high-pressure pump and a heating system) are required. Thus, when molasse is used as the binder, the process of making mill scale briquette may become complicated.
[0011] The viscosity of molasse may vary depending on its source, supplier, and supply point of time because the malasse originates from natural substance, and it may also be difficult to control the quality of mill scale briquette constant.
[0012] Molasse is in liquid form and has low density, and a large amount of molasse is required, together with large capacity storage equipments therefor. A large transportation quantity of molasse may also lead to a rise in transportation cost.
DETAILED DESCRIPTION OF THE INVENTION TECHNICAL PROBLEM [0013] The present invention provides a composition for forming a mill scale briquette, the composition including a cellulose ether compound having a certain viscosity range as a binder, wherein the cellulose ether compound does not include carboxymethylcellulose (CMC).
[0014] The present invention provides a mill scale briquette formed from the composition for forming a mill scale briquette.
TECHNICAL SOLUTION [0015] According to an aspect of the present invention, there is provided a composition for forming a mill scale briquette, including: a particulate mill scale; and
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2015290517 11 Dec 2018 a cellulose ether compound having a viscosity of about 4,000 to about 80,000 cps as a binder, wherein the cellulose ether compound does not include carboxymethylcellulose (CMC).
[0016] The particulate mill scale may have a particle size of about 3.0 mm or less. [0017] The cellulose ether compound may not include carboxymethylcellulose (CMC). [0018] The cellulose ether compound may include at least one compound selected from the group consisting of methyl cellulose (MC), hydroxyethyl cellulose (HEC), hydroxypropyl cellulose (HPC), hydroxypropyl methyl cellulose (HPMC), and hydroxyethyl methyl cellulose (HEMC).
[0019] The methyl cellulose (MC) may have a degree of substitution of methyl group of about 18wt%~about 32wt%, the hydroxyethyl cellulose (HEC) may have a degree of substitution of hydroxyethyl group of about 20wt%~about 80wt%, the hydroxypropyl cellulose (HPC) may have a degree of substitution of hydroxypropyl group of about 20wt%~about 80wt%, the hydroxypropyl methyl cellulose (HPMC) may have a degree of substitution of methyl group of about 18wt%~about 32wt% and a degree of substitution of hydroxypropyl group of about 2wt%~about 14wt%, and the hydroxyethyl methyl cellulose (HEMC) may have a degree of substitution of methyl group of about 18wt%~about 32wt% and a degree of substitution of hydroxyethyl group of about 2wt%~about 14wt%.
[0020] An amount of the cellulose ether compound may be from about 0.01 parts to about 15.0 parts by weight with respect to 100 parts by weight of the particulate mill scale.
[0021] The composition for forming a mill scale briquette may further include an additional binder in an amount of greater than 0 to about 15.0 parts or less by weight with respect to 100 parts by weight of the particulate mill scale.
[0022] The additional binder may include at least one compound selected from the group consisting of molasse, corn starch, wheat starch, potato starch, polyethylene glycol (PEG), polyvinyl alcohol (PVA), polyacrylamide (PAM), sucrose, liquid glucose, acacia gum, tragacanth gum, gelatin, alginic acid, polymethacrylate, polyvinylpyrrolidone (PVP), sodium polyacrylate, polyvinyl methyl ether (PLM), asphalt, bitumen, casein, epoxy resin, pitch, polyamide, polyurethane, and polyvinyl acetal.
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2015290517 11 Dec 2018 [0023] The composition for forming a mill scale briquette may further include water in an amount of greater than 0 to about 10.0 parts or less by weight with respect to 100 parts by weight of the particulate mill scale.
[0024] The composition for forming a mill scale briquette may not include at least one of a strength-reinforcing agent and glycerin.
[0025] According to an aspect of the present invention, there is provided a mill scale briquette manufactured from any of the above-described compositions for forming mill scale briquettes.
[0026] The mill scale briquette may include a cellulose ether compound and may not include at least one of a strength-reinforcing agent and glycerin.
ADVANTAGEOUS EFFECTS OF THE INVENTION [0027] According to one or more embodiments, a composition for forming a mill scale briquette may include a cellulose ether compound in colorless and odorless solid powder form and having a certain viscosity range as a binder, and thus may improve working environment free of odor. A total amount of the binder used may be reduced (to about one-tenth of the amount of molasse to be used when only molasse is used alone (100%)). The composition may not need an additional strength-reinforcing agent, so that the process of manufacturing a mill scale briquette may be simplified. A high-strength mill scale briquette may be manufactured while maintaining conditions of more stable supply-demand and more stable price compared to when molasse is used.
MODE OF THE INVENTION [0028] Hereinafter, embodiments of a composition for forming a mill scale briquette will be described in detail.
[0029] According to an aspect of the present disclosure, a composition for forming a mill scale briquette includes: a particulate mill scale; and a cellulose ether compound having a viscosity of about 4,000 to about 80,000 centipoises (cps) or mPa · s as a binder. As used herein, the term rmill scalej may refer to a flaky surface of hot rolled steel, i.e., an iron oxide iron(ll) oxide (FeO), iron(lll) oxide (Fe2C>3), and iron(ll,
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III) oxide (FesCri). The term rparticulate mill scalej may refer to a mill scale having a particle size of about 3.0 mm or less. As used herein, the term rviscosity of the cellulose ether compoundj may refer to a viscosity of a 2wt% aqueous cellulose ether compound solution measured at about 20±0.1°C with a Brookfield DV-ll+Pro (spindle HA).
[0030] When the cellulose ether compound has a viscosity of less than 4,000 ops, the viscosity of the solution (for example, aqueous solution) containing the cellulose ether compound may be so low that the binding strength of the cellulose ether compound to the particulate mill scale may be reduced. When the cellulose ether compound has a viscosity greater than 80,000 ops, the molecular weight of the cellulose ether compound may be so high that the solubility in water of the cellulose ether compound may be decreased, and the binding strength to the particulate mill scale may not be high enough.
[0031] The cellulose ether compound may have a viscosity of, for example, about 5,000 ops ~ about 70,000 ops, and in some embodiments, about 6,000 ops ~ about 60,000 ops, and in some embodiments, about 7,000 ops ~ about 50,000 ops, and in some other embodiments, about 8,000 ops ~ about 40,000 ops, and in still other embodiments, about 9,000 ops ~ about 30,000cps, and yet still other embodiments, about 10,000 ops ~ about 20,000cps.
[0032] The particulate mill scale may have a particle size of about 2.0 mm or less. When a particulate mill scale having a particle size of about 3.0 mm or less is used in its original state in ion making and steel making processes, without being processed in the form of briquette, dust may be generated, and the particulate mill scale may not be uniformly mixed with molten iron or molten steel and may be floated on an upper part of the molten iron or molten steel.
[0033] The cellulose ether compound may bind the particles of the particulate mill scale to each other.
[0034] The cellulose ether compound may have good solubility in water and thus may not be precipitated on an inner surface of nozzles when sprayed in the aqueous solution state through the nozzles and thus may not block nozzles. The cellulose ether compound may be stored and transported in solid powder form alone or as a mixture with the particulate mill scale, and may then be mixed with water at a final stage of use. Accordingly, it may be possible to use smaller and simplified storage
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2015290517 11 Dec 2018 equipments and simplified transportation equipments. The cellulose ether compound may provide the same binding effect as molasse even with the use of a smaller amount than the molasse, and may have a lower cost value than the molasse, and thus may reduce the material cost. The cellulose ether compound may also form a mill scale briquette with good strength without using a strength-reinforcing agent. [0035] The cellulose ether compound may not include carboxymethylcellulose (CMC). When the cellulose ether compound includes carboxymethylcellulose (CMC), a mill scale briquette prepared from the composition for forming a mill scale briquette may have a reduced strength.
[0036] The cellulose ether compound may include at least one compound selected from the group consisting of methyl cellulose (MC), hydroxyethyl cellulose (HEC), hydroxypropyl cellulose (HPC), hydroxypropyl methyl cellulose (HPMC), and hydroxyethyl methyl cellulose (HEMC).
[0037] The methyl cellulose (MC) may have a degree of substitution of methyl group of about 18wt%~about 32wt%, the hydroxyethyl cellulose (HEC) may have a degree of substitution of hydroxyethyl group of about 20wt%~about 80wt%, the hydroxypropyl cellulose (HPC) may have a degree of substitution of hydroxypropyl group of about 20wt%~about 80wt%, the hydroxypropyl methyl cellulose (HPMC) may have a degree of substitution of methyl group of about 18wt%~about 32wt% and a degree of substitution of hydroxypropyl group of about 2wt%~about 14wt%, and the hydroxyethyl methyl cellulose (HEMC) may have a degree of substitution of methyl group of about 18wt%~about 32wt% and a degree of substitution of hydroxyethyl group of about 2wt%~about 14wt%.
[0038] The amount of the cellulose ether compound may be from about 0.01 parts to about 15.0 parts by weight with respect to 100 parts by weight of the particulate mill scale. When the amount of the cellulose ether compound is within this range, a highstrength mile scale briquette may be obtained with the use of a smaller amount than molasse.
[0039] The composition for forming a mill scale briquette may further include an additional binder in an amount of greater than 0 to about 15.0 parts or less by weight with respect to 100 parts by weight of the particulate mill scale. When the amount of the additional binder is within this range, the amount of the cellulose ether compound used may be reduced so that the preparation cost of the composition for forming a mill scale briquette may also be reduced. Furthermore, dust generation may be
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2015290517 11 Dec 2018 reduced, and a mill scale briquette with improved strength may be obtained.
[0040] The additional binder may include at least one compound selected from the group consisting of molasse, corn starch, wheat starch, potato starch, polyethylene glycol (PEG), polyvinyl alcohol (PVA), polyacrylamide (PAM), sucrose, liquid glucose, acacia gum, tragacanth gum, gelatin, alginic acid, polymethacrylate, polyvinylpyrrolidone (PVP), sodium polyacrylate, polyvinyl methyl ether (PLM), asphalt, bitumen, casein, epoxy resin, pitch, polyamide, polyurethane, and polyvinyl acetal.
[0041] The composition for forming a mill scale briquette may further include water in an amount of greater than 0 to about 10.0 parts or less by weight with respect to 100 parts by weight of the particulate mill scale. When the amount of water is within this range, a composition that is easy to handle and has a uniform composition may be obtained, and sticking of some components in the composition to a surface of a molding machine in a briquette forming process may be prevented.
[0042] The composition for forming a mill scale briquette may not include at least one of a strength-reinforcing agent and glycerin. When the composition for forming a mill scale briquette includes glycerin, the drying rate of a mill scale briquette prepared from the composition may become slow, resulting in reduced heat efficiency.
[0043] The strength-reinforcing agent may include slaked lime (calcium hydroxide), bentonite, any other material capable of enhancing the strength of mill scale briquette, or a combination thereof.
[0044] According to another aspect of the present disclosure, there is provided a mill scale briquette formed from the composition for forming a mill scale briquette according to any of the above-described embodiments.
[0045] A method of forming a mill scale briquette from the composition for forming a mill scale briquette according to any of the above-described embodiments is as follows. The method may include putting the composition for forming a mill scale briquette into a mold and pressing the mold at a predetermined pressure to form a mill scale briquette.
[0046] The mill scale briquette may include a cellulose ether compound and may not include at least one of a strength-reinforcing agent and glycerin.
[0047] One or more embodiments of the present disclosure will now be described in detail with reference to the following examples. However, these examples are only for illustrative purposes and are not intended to limit the scope of the one or more
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2015290517 11 Dec 2018 embodiments of the present disclosure.
[0048] [Examples] [0049] Examples 1 to 9 and Comparative Examples 1 and 2 [0050] (Preparation of composition for forming a mill scale briquette) [0051] Particulate mill scale (particle size: about 0.1~about 3.0 mm) obtained from a steel company in Korea, hydroxypropyl methyl cellulose, and optionally molasse (KCIE CO., LTD., Solid content: 77.2wt%, Total sugar content: 49.3wt%) were mixed together to obtain a first composition. Then, distilled water was added to the first composition thereby to obtain a composition for forming a mill scale briquette. The amounts of the components in each of the compositions of Examples 1 to 9 and Comparative Examples 1 and 2 are represented in Table 1.
[0052] (Manufacture of mill scale briquette) [0053] Fifty mill scale briquettes were manufactured by compression molding each of the prepared compositions for forming a mill scale briquette at a load of about 70kN with a Briquette machine (available from JEIL MACHINERY CO., LTD., JCB250T), and thirty of them were selected excluding twenty of them including the first ten and last ten. The weight of each mill scale briquette was about 15 g ~ about 30 g.
[0054] Comparative Example 3 [0055] (Preparation of composition for forming a mill scale briquette) [0056] A composition for forming a mill scale briquette was prepared in the same manner as in Example 1, except that carboxymethylcellulose (CMC) (available from Ashiland, Aqualon™, Viscosity: 6,000 ops) was used instead of hydroxypropyl methyl cellulose (HPMC1). The amounts of the components in the composition of Comparative Example 3 are represented in Table 1.
[0057] Comparative Example 4 [0058] (Preparation of composition for forming a mill scale briquette) [0059] Particulate mill scale (particle size: about 0.1-about 3.0 mm) obtained form a steel company in Korea and molasse (KCIE CO., LTD., Solid content: 77.2wt%, Total sugar content: 49.3wt%) were mixed together to obtain a first composition. Then, distilled water was added to the first composition thereby to obtain a second composition. Next, slaked lime (calcium hydroxide, available from CHOONGMOO CHEMICAL Co., Ltd., CaO content: 70wt% or greater, Fineness: 95wt% of which
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2015290517 11 Dec 2018 may be passed through 170-mesh (89/zm) sieve) was added to the second composition thereby to obtain a composition for forming a mill scale briquette. The amounts of the components in the composition of Comparative Example 4 are represented in Table 1.
[0060] (Manufacture of mill scale briquette) [0061] Mill scale briquettes were manufactured in the same manner as in Examples 1 to 9 and Comparative Examples 1 and 2, except that the composition for forming a mill scale briquette of Comparative Example 4 was used instead of the composition for forming a mill scale briquettes prepared in Examples 1 to 9 and Comparative Examples 1 and 2. The weight of each mill scale briquette was about 15 g ~ about 30 g.
[Table 1]
| Mixing ratio (parts by weight) | ||||||||||
| Particulate mill scale | Molasse | Distilled water | Slaked lime (calcium hydroxide) | HPMC | CMC | |||||
| 1 | 2 | 3 | 4 | 5 | ||||||
| Example 1 | 100 | 0 | 10 | 0 | 0.2 | 0 | 0 | 0 | 0 | 0 |
| Example 2 | 100 | 0 | 10 | 0 | 0.5 | 0 | 0 | 0 | 0 | 0 |
| Example 3 | 100 | 0 | 10 | 0 | 1.0 | 0 | 0 | 0 | 0 | 0 |
| Example 4 | 100 | 0 | 10 | 0 | 2.0 | 0 | 0 | 0 | 0 | 0 |
| Example 5 | 100 | 2 | 8 | 0 | 0.1 | 0 | 0 | 0 | 0 | 0 |
| Example 6 | 100 | 2 | 8 | 0 | 0.2 | 0 | 0 | 0 | 0 | 0 |
| Example 7 | 100 | 2 | 8 | 0 | 1.0 | 0 | 0 | 0 | 0 | 0 |
| Example 8 | 100 | 0 | 10 | 0 | 0 | 0.2 | 0 | 0 | 0 | 0 |
| Example 9 | 100 | 0 | 10 | 0 | 0 | 0 | 0.2 | 0 | 0 | 0 |
| Comparative Example 1 | 100 | 0 | 10 | 0 | 0 | 0 | 0 | 0.2 | 0 | 0 |
| Comparative Example 2 | 100 | 0 | 10 | 0 | 0 | 0 | 0 | 0 | 0.2 | 0 |
| Comparative Example 3 | 100 | 0 | 10 | 0 | 0 | 0 | 0 | 0 | 0 | 0.2 |
| Comparative Example 4 | 100 | 6 | 1 | 3 | 0 | 0 | 0 | 0 | 0 | 0 |
HPMC1: Samsung Fine Chemicals Co., Ltd., MECELLOSE®HPMC (PMC-60U), Viscosity: 60,000 cps, Degree of substitution of methyl group: 23.2wt%, Degree of substitution of hydroxypropyl group: 8.8wt%
HPMC2: Samsung Fine Chemicals Co., Ltd., MECELLOSE®HPMC (PMB-40H), Viscosity:
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4,000cps, Degree of substitution of methyl group: 28.6wt%, Degree of substitution of hydroxypropyl group: 6.1wt%
HPMC3: Samsung Fine Chemicals Co., Ltd., HPMC, Viscosity: 80,000cps, Degree of substitution of methyl group: 22.8wt%, Degree of substitution of hydroxypropyl group: 9.1wt%
HPMC4: Samsung Fine Chemicals Co., Ltd., HPMC, Viscosity: 3,000cps, Degree of substitution of methyl group: 26.4wt%, Degree of substitution of hydroxypropyl group: 8.2wt%
HPMC5: Samsung Fine Chemicals Co., Ltd., HPMC, Viscosity: 85,000cps, Degree of substitution of methyl group: 22.6wt%, Degree of substitution of hydroxypropyl group: 9.2wt% [0062] Evaluation Example [0063] Evaluation Example 1 [0064] Drop impact strengths and compressive strengths of the mill scale briquettes manufactured in Examples 1 to 9 and Comparative Examples 1 to 4 were evaluated by the following methods. The results are shown in Table 2.
[0065] (Drop impact strength evaluation) [0066] After twenty mill scale briquettes manufactured in each of the examples were dropped ten times at a 165-cm height, a total weight of the remaining fragments of the mill scale briquettes having a size of 5 mm or greater was represented as a percentage by weight with respect to a total weight of the mill scale briquettes of each example before the dropping. This obtained percentage value by weight was evaluated as a drop impact strength. A larger percentage value by weight obtained means that the mill scale briquette had a higher drop impact strength. This drop impact strength is a criterion for estimation of a percentage of loss by several times of dropping while each mill scale briquette is transported by a conveyor belt.
[0067] (Compressive strength evaluation) [0068] The maximum strengths of the mill scale briquettes when compressed at a rate of 5 mm/min with a universal material tester (SHINGANG PRECISION CO., LTD., AD-universal material tester-kN) were measured and evaluated as a compressive strength. This compressive strength is a criterion for estimation of a damage ratio by their own weight when the mill scale briquettes are stored in a storage tank.
[Table 2]
| Example | Comparative Example | ||||||||||||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 1 | 2 | 3 | 4 | |
| Drop impact strength | 85.1 | 87.6 | 90.0 | 93.4 | 88.1 | 90.2 | 91.3 | 86.2 | 87.0 | 77.1 | 75.2 | 73.4 | 83.2 |
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as compared with the mill scale briquettes manufactured according to Comparative Examples 1 to 4.
[0070] It should be understood that embodiments described herein should be considered in a descriptive sense only and not for purposes of limitation. Descriptions of features or aspects within each embodiment should typically be considered as available for other similar features or aspects in other embodiments. While one or more embodiments have been described with reference to the figures, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope as defined by the following claims.
[0071] In the claims which follow and in the preceding description of the invention, except where the context requires otherwise due to express language or necessary implication, the word “comprise” or variations such as “comprises” or “comprising” is used in an inclusive sense, i.e. to specify the presence of the stated features but not to preclude the presence or addition of further features in various embodiments of the invention.
[0072] It is to be understood that, if any prior art publication is referred to herein, such reference does not constitute an admission that the publication forms a part of the common general knowledge in the art, in Australia or any other country.
[0073]
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Editorial note
Please notionally renumber the claim pages to 12 - 13
2015290517 11 Dec 2018
Claims (11)
1. A composition for forming a mill scale briquette, comprising:
5 a particulate mill scale; and a cellulose ether compound having a viscosity of about 4,000 to about 80,000 cps as a binder, wherein the cellulose ether compound does not include carboxymethylcellulose (CMC).
10
2. The composition of claim 1, wherein the particulate mill scale has a particle size of about 3.0 mm or less.
3. The composition of claim 1 or 2, wherein the cellulose ether compound comprises at least one compound selected from the group consisting of methyl
15 cellulose (MC), hydroxyethyl cellulose (HEC), hydroxypropyl cellulose (HPC), hydroxypropyl methyl cellulose (HPMC), and hydroxyethyl methyl cellulose (HEMC).
4. The composition of claim 3, wherein the methyl cellulose (MC) has a degree of substitution of methyl group of about 18wt% ~ about 32wt%, the
20 hydroxyethyl cellulose (HEC) has a degree of substitution of hydroxyethyl group of about 20wt% ~ about 80wt%, the hydroxypropyl cellulose (HPC) has a degree of substitution of hydroxypropyl group of about 20wt% ~ about 80wt%, the hydroxypropyl methyl cellulose (HPMC) has a degree of substitution of methyl group of about 18wt% ~ about 32wt% and a degree of substitution of hydroxypropyl group
25 of about 2wt% ~ about 14wt%, and the hydroxyethyl methyl cellulose (HEMC) has a degree of substitution of methyl group of about 18wt% ~ about 32wt% and a degree of substitution of hydroxyethyl group of about 2wt% ~ about 14wt%.
5. The composition of any one of the preceding claims, wherein an
30 amount of the cellulose ether compound is from about 0.01 parts to about 15.0 parts by weight with respect to 100 parts by weight of the particulate mill scale.
6. The composition of any one of the preceding claims, further comprising an additional binder in an amount of greater than 0 to about 15.0 parts or less by
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2015290517 11 Dec 2018 weight with respect to 100 parts by weight of the particulate mill scale.
7. The composition of claim 6, wherein the additional binder comprises at least one compound selected from the group consisting of molasse, corn starch,
5 wheat starch, potato starch, polyethylene glycol (PEG), polyvinyl alcohol (PVA), polyacrylamide (PAM), sucrose, liquid glucose, acacia gum, tragacanth gum, gelatin, alginic acid, polymethacrylate, polyvinylpyrrolidone (PVP), sodium polyacrylate, polyvinyl methyl ether (PLM), asphalt, bitumen, casein, epoxy resin, pitch, polyamide, polyurethane, and polyvinyl acetal.
8. The composition of any one of the preceding claims, further comprising water in an amount of greater than 0 to about 10.0 parts or less by weight with respect to 100 parts by weight of the particulate mill scale.
15
9. The composition of any one of the preceding claims, wherein the composition does not comprise at least one of a strength-reinforcing agent and glycerin.
10. A mill scale briquette manufactured from the composition for forming a
20 mill scale briquette according to any one of claims 1 to 9.
11. The mill scale briquette of claim 10, wherein the mill scale briquette comprises a cellulose ether compound and does not comprise at least one of a strength-reinforcing agent and glycerin.
8591836_1 (GHMatters) P104953.AU
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020140090349A KR102280253B1 (en) | 2014-07-17 | 2014-07-17 | Composition for forming mill scale briquette and mill scale briquette |
| KR10-2014-0090349 | 2014-07-17 | ||
| PCT/KR2015/004629 WO2016010243A1 (en) | 2014-07-17 | 2015-05-08 | Composition for forming mill scale briquette, and mill scale briquette |
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| AU2015290517A1 AU2015290517A1 (en) | 2017-02-02 |
| AU2015290517B2 true AU2015290517B2 (en) | 2019-01-17 |
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| AU2015290517A Ceased AU2015290517B2 (en) | 2014-07-17 | 2015-05-08 | Composition for forming mill scale briquette, and mill scale briquette |
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| Country | Link |
|---|---|
| KR (1) | KR102280253B1 (en) |
| CN (1) | CN106536690A (en) |
| AU (1) | AU2015290517B2 (en) |
| BR (1) | BR112017000772A2 (en) |
| WO (1) | WO2016010243A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210340455A1 (en) * | 2016-08-15 | 2021-11-04 | Binding Solutions Limited | Briquettes |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20180076880A (en) * | 2016-12-28 | 2018-07-06 | 롯데정밀화학 주식회사 | Composition of briquette binder, briquette comprising the same and manufacturing method of briquette |
| KR20180121151A (en) * | 2017-04-28 | 2018-11-07 | 롯데정밀화학 주식회사 | Composition of coal briquette and coal briquette comprising the same |
| KR102439332B1 (en) * | 2017-07-31 | 2022-09-01 | 롯데정밀화학 주식회사 | Coal briquette composition, coal briquette comprising the same and manufacturing method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6013116A (en) * | 1998-02-02 | 2000-01-11 | Major; Billy Joseph | Briquette binder composition |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4863512A (en) * | 1987-06-29 | 1989-09-05 | Aqualon Company | Binder for metal-containing ores |
| JP3929544B2 (en) * | 1997-03-19 | 2007-06-13 | 新日本製鐵株式会社 | Surface coating method for field coal |
| KR100298685B1 (en) * | 1999-07-19 | 2001-09-22 | 윤병진 | Lump cokes used to Electric furnace or steel-making furnace |
| KR100507667B1 (en) * | 2000-12-22 | 2005-08-10 | 주식회사 포스코 | Recycling method of electric arc furnace dust |
| KR100568337B1 (en) * | 2001-08-06 | 2006-04-05 | 주식회사 포스코 | Manufacturing method of coal briquettes for molten reduction steel processing with excellent strength |
| KR100645082B1 (en) * | 2006-03-08 | 2006-11-13 | 최일완 | Industrial Waste Recycling Method and Molding Apparatus Used in The Same |
| KR20090028305A (en) * | 2007-09-14 | 2009-03-18 | 주식회사 디에스아이 | Steel short dust briquette and manufacturing method |
| CN101736148A (en) * | 2008-11-21 | 2010-06-16 | 刘贵堂 | Sintering-pelletizing additive, preparation method and application thereof |
| CN101747967B (en) * | 2008-11-28 | 2013-11-20 | 宝山钢铁股份有限公司 | Industrial briquette for molten iron production and gas generator and preparation method thereof |
| KR101142398B1 (en) * | 2009-08-17 | 2012-05-08 | (주)한천자원 | Manufacturing method of molding coal using coal dust |
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2014
- 2014-07-17 KR KR1020140090349A patent/KR102280253B1/en not_active Expired - Fee Related
-
2015
- 2015-05-08 BR BR112017000772A patent/BR112017000772A2/en not_active Application Discontinuation
- 2015-05-08 WO PCT/KR2015/004629 patent/WO2016010243A1/en not_active Ceased
- 2015-05-08 AU AU2015290517A patent/AU2015290517B2/en not_active Ceased
- 2015-05-08 CN CN201580039171.8A patent/CN106536690A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6013116A (en) * | 1998-02-02 | 2000-01-11 | Major; Billy Joseph | Briquette binder composition |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210340455A1 (en) * | 2016-08-15 | 2021-11-04 | Binding Solutions Limited | Briquettes |
| US12584074B2 (en) * | 2016-08-15 | 2026-03-24 | Binding Solutions Limited | Briquettes |
Also Published As
| Publication number | Publication date |
|---|---|
| KR102280253B1 (en) | 2021-07-21 |
| KR20160009881A (en) | 2016-01-27 |
| CN106536690A (en) | 2017-03-22 |
| AU2015290517A1 (en) | 2017-02-02 |
| BR112017000772A2 (en) | 2017-11-21 |
| WO2016010243A1 (en) | 2016-01-21 |
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