CN101973740B - Black attapulgite polymer clay powder - Google Patents
Black attapulgite polymer clay powder Download PDFInfo
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- CN101973740B CN101973740B CN2010102404196A CN201010240419A CN101973740B CN 101973740 B CN101973740 B CN 101973740B CN 2010102404196 A CN2010102404196 A CN 2010102404196A CN 201010240419 A CN201010240419 A CN 201010240419A CN 101973740 B CN101973740 B CN 101973740B
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- black
- attapulgite
- polymer clay
- clay powder
- black attapulgite
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- 229960000892 attapulgite Drugs 0.000 title claims abstract description 59
- 229910052625 palygorskite Inorganic materials 0.000 title claims abstract description 59
- 239000000843 powder Substances 0.000 title claims abstract description 41
- 239000004927 clay Substances 0.000 title claims abstract description 26
- 229920000642 polymer Polymers 0.000 title abstract 10
- 238000010298 pulverizing process Methods 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000004519 manufacturing process Methods 0.000 claims abstract description 11
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 claims abstract description 7
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 claims abstract description 7
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims abstract description 6
- 239000004113 Sepiolite Substances 0.000 claims abstract description 6
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000001110 calcium chloride Substances 0.000 claims abstract description 6
- 229910001628 calcium chloride Inorganic materials 0.000 claims abstract description 6
- 239000006229 carbon black Substances 0.000 claims abstract description 6
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052624 sepiolite Inorganic materials 0.000 claims abstract description 6
- 235000019355 sepiolite Nutrition 0.000 claims abstract description 6
- 239000004575 stone Substances 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 8
- 239000000428 dust Substances 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 7
- CODAYFPFZXWNLD-UHFFFAOYSA-N 2-hydroxypropanoyl octadecanoate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OC(=O)C(C)O CODAYFPFZXWNLD-UHFFFAOYSA-N 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 6
- 239000012535 impurity Substances 0.000 claims description 5
- 235000011194 food seasoning agent Nutrition 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 230000003301 hydrolyzing effect Effects 0.000 claims description 2
- 230000008676 import Effects 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 230000007306 turnover Effects 0.000 claims description 2
- 206010040880 Skin irritation Diseases 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 238000000746 purification Methods 0.000 abstract description 2
- 230000036556 skin irritation Effects 0.000 abstract description 2
- 231100000475 skin irritation Toxicity 0.000 abstract description 2
- KHICUSAUSRBPJT-UHFFFAOYSA-N 2-(2-octadecanoyloxypropanoyloxy)propanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(=O)OC(C)C(=O)OC(C)C(O)=O KHICUSAUSRBPJT-UHFFFAOYSA-N 0.000 abstract 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 abstract 1
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 abstract 1
- 239000000440 bentonite Substances 0.000 abstract 1
- 229910000278 bentonite Inorganic materials 0.000 abstract 1
- 239000001768 carboxy methyl cellulose Substances 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 239000004615 ingredient Substances 0.000 abstract 1
- WTFXARWRTYJXII-UHFFFAOYSA-N iron(2+);iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[Fe+2].[Fe+3].[Fe+3] WTFXARWRTYJXII-UHFFFAOYSA-N 0.000 abstract 1
- 238000002156 mixing Methods 0.000 abstract 1
- 231100000956 nontoxicity Toxicity 0.000 abstract 1
- 238000004806 packaging method and process Methods 0.000 abstract 1
- 239000011734 sodium Substances 0.000 abstract 1
- 229910052708 sodium Inorganic materials 0.000 abstract 1
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 abstract 1
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 abstract 1
- 239000000919 ceramic Substances 0.000 description 15
- 239000011347 resin Substances 0.000 description 8
- 229920005989 resin Polymers 0.000 description 8
- 239000002994 raw material Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 3
- 239000005977 Ethylene Substances 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- 229920002472 Starch Polymers 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 3
- 235000012204 lemonade/lime carbonate Nutrition 0.000 description 3
- 239000004800 polyvinyl chloride Substances 0.000 description 3
- 230000001737 promoting effect Effects 0.000 description 3
- 239000008107 starch Substances 0.000 description 3
- 235000019698 starch Nutrition 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004945 emulsification Methods 0.000 description 2
- 239000002932 luster Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- 230000009965 odorless effect Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000009967 tasteless effect Effects 0.000 description 2
- 230000008719 thickening Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 239000004902 Softening Agent Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000002734 clay mineral Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000001804 emulsifying effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 231100000652 hormesis Toxicity 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 description 1
- 239000000391 magnesium silicate Substances 0.000 description 1
- 229910052919 magnesium silicate Inorganic materials 0.000 description 1
- 235000019792 magnesium silicate Nutrition 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000011022 opal Substances 0.000 description 1
- 230000000176 photostabilization Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 235000019633 pungent taste Nutrition 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 235000013599 spices Nutrition 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Landscapes
- Detergent Compositions (AREA)
Abstract
The invention discloses black attapulgite polymer clay powder, and the key points of the technical scheme are as follows: the black attapulgite polymer clay powder consists of attapulgite clay after purification, bentonite, sepiolite, black iron oxide, carbon black, calcium chloride, sodium polyacrylate, sodium carboxymethyl cellulose and sodium stearyl lactylate. A finished product of the black attapulgite polymer clay powder is prepared by mixing ingredients of the black attapulgite polymer clay powder, inputting into a crushing machine for crushing, further inputting the mixed materials after crushing into a pulverizing mill for pulverizing and packaging. Black attapulgite polymer clay produced by adding water in the black attapulgite polymer clay powder has the characteristics of high viscosity, softness, good plasticity, small shrinkage rate, no deformation, hardening after natural drying, no need of baking, no production of cracks, no mildew, no skin irritation, no toxicity, no corrosion and no greasy feeling. The black attapulgite polymer clay powder has simple production process, low cost and convenient use, and is conductive to popularization, and the black attapulgite polymer clay powder is applicable to field production of the black attapulgite polymer clay.
Description
Technical field
The present invention relates to the mud of making pottery, be specifically related to the soft pottery powder of a kind of black attapulgite.
Background technology
The soft ceramic mud of supplying on the market is through the block soft ceramic mud after the batching processing, the main raw material of soft ceramic mud is polyvinyl chloride and lime carbonate, binding property is bad under the normal temperature state, and prolonged preservation easily wears out and fades, and bubbles easily during the baking soft ceramic mud, when if temperature surpasses 200 ℃, finished product is burnt and melt, even may cause burning, generate chloride pungency toxic smog, the selling price of soft ceramic mud is higher, is unfavorable for promoting the use of.
The Chinese patent publication number is: CN 101186736, open day: on May 28th, 2008, name is called " a kind of soft ceramic mud and preparation method thereof ", disclose: " a kind of soft ceramic mud and preparation method; it is prepared from by following parts by weight of component: polyvinyl chloride (PVC) paste resin 15～40, bizinc resin 20～55, lime carbonate 15～35, softening agent 0.1～0.4, toner 0.5～0.15, all the other are micro-moisture and impurity ".
The weak point of above-mentioned patent is that the soft ceramic mud main raw material that this technology is produced is polyvinyl chloride (PVC) paste resin, bizinc resin and lime carbonate, and binding property is bad under the normal temperature state, is unfavorable for making moulding, and bizinc resin belongs to dangerous product.
The Chinese patent Granted publication number is: CN 1273531, Granted publication day: on September 6th, 2006, name is called " a kind of manufacture method of transparent texture resin clay ", disclose: " a kind of manufacture method of transparent texture resin clay; it is characterized in that: it is at first mixed together by ethylene powder-vinyl acetate copolymer, starch, glycerol, sanitas, spices and adds water purification again and stir into mud shape thing; and then add whiteruss and mix and stir, vacuum-packed finished product ".
The weak point of above-mentioned patent is that the transparent texture resin clay main raw material that this technology is produced is ethylene powder-vinyl acetate copolymer and starch, ethylene powder-vinyl acetate copolymer has hormesis to eyes and skin, be not suitable for being used to manufacture the raw material of handicraft, need a large amount of starch in this product, be unfavorable for promoting the use of.
Summary of the invention
The objective of the invention is to overcome weak point in the prior art, provide a kind of black attapulgite soft pottery powder.
The soft pottery powder of black attapulgite is made up of Concavo-convex stick after purifying stone clay, wilkinite, sepiolite, iron oxide black, carbon black, calcium chloride, sodium polyacrylate, Xylo-Mucine and stearoyl lactate.After the batch mixes with the soft pottery powder of black attapulgite, pulverize in the input pulverizer, carry out abrasive dust in the mixture input pulverizing mill after will pulverizing again, be packaged as the finished product of the soft pottery powder of black attapulgite.
Use the wet beneficiation craft of Attapulgite, the screening of mineral such as the hydromica in the attapulgite clay, quartz, opal and carbonate is got rid of, obtain a kind of Concavo-convex stick after purifying stone clay, Concavo-convex stick after purifying stone clay soil property exquisiteness, smooth surface, quality is lighter, be viscosity and plasticity-when moist, its viscosity can reach more than the 3000mPas, helps the bonding between the raw material, the dry post-shrinkage ratio of attapulgite clay is little, and does not produce be full of cracks.
Wilkinite has excellent plasticity, cohesiveness and oilness, helps increasing the plasticity-and the intensity of the soft pottery powder of black attapulgite.
Sepiolite is a kind of rich fibrous magnesium silicate clay mineral, has fine and smooth soft, viscosity is strong, shrinking percentage is low and plasticity-the is good characteristics of satin luster, light weight, helps improving the gloss and the mouldability of the soft pottery powder of black attapulgite.
Iron oxide black is a kind of black powder, and tinting strength and opacifying power are good, has good weathering resistance, photostabilization, anti-atmosphere, good endurance, the characteristics that high thermal resistance is good.
Carbon black is the ater fines that produces through incomplete combustion with carbon raw material, is the cheap black pigment of a kind of good stability, tinting strength and strong covering power.
Calcium chloride is water-soluble, is a kind of siccative commonly used, has in the present invention to improve the soft pottery powder of black attapulgite and add hardness after water is made into the black attapulgite soft ceramic mud, and can increase the anti-ability of freezing of black attapulgite soft ceramic mud.
Sodium polyacrylate is a kind of white powder, odorless, tasteless and nontoxic can be slowly soluble in water, forms utmost point heavy-gravity transparent gel, have thickening, emulsification, figuration, multiple function such as expanded, stable, can improve the cohesiveness and the ductility of the soft pottery powder of black attapulgite.
Xylo-Mucine is white fiber shape or particle powder, and odorless is tasteless, and water absorbability is arranged, and easily is scattered in to be swelled into colloidal solution in the water, has good emulsifying stablizer and thickening material.
Stearoyl lactate is a kind of off-white powder or chip solid, can be scattered in the hot water, has effects such as emulsification, anti-aging and increase plasticity in the present invention.
Selecting sodium polyacrylate, stearoyl lactate and Xylo-Mucine in the present invention simultaneously for use, is to add water and make cohesiveness, flexibility, the ductility behind the black attapulgite soft ceramic mud and prevent that the black attapulgite soft ceramic mud is aging in order further to increase the soft pottery powder of black attapulgite.
The present invention is achieved by following technical proposals:
1, the batching of the soft pottery powder of black attapulgite is made up of following component by weight percentage: Concavo-convex stick after purifying stone clay 30～55%, wilkinite 15～25%, sepiolite 5～20%, iron oxide black 1～8%, carbon black 1～5%, calcium chloride 1～5%, sodium polyacrylate 0.1～5%, Xylo-Mucine 0.1～5% and stearoyl lactate 0.1～5%.
2, the production method of the soft pottery powder of black attapulgite: after the batch mixes with the soft pottery powder of black attapulgite, pulverize in the input pulverizer, compound particles fineness after the pulverizing is less than 0.250 millimeter, carry out abrasive dust in the mixture input pulverizing mill after will pulverizing again, compound particles fineness behind the abrasive dust is packaged as the finished product of the soft pottery powder of black attapulgite less than 0.045 millimeter.
Described Concavo-convex stick after purifying stone clay, it is the Attapulgite ore deposit mixture that will contain earth impurity, import in the hydrolytic tank after crushed, soak after 24 hours, dash with high-pressure pump and to turn over, and the sieve of the drum by making with stainless steel steel wire sieve removes the impurity more than 1 millimeter, send in the acclive settling tank, continuation is dashed with high-pressure pump and is turned over, after 12 hours, because the proportion in Attapulgite ore deposit is lighter, its the superiors in whole throw out draws this part Attapulgite ore deposit with slush pump and sends in the flat settling tank, emits unnecessary water after 15 hours, through 2-3 days seasoning, take out this part Attapulgite ore deposit and be Concavo-convex stick after purifying stone clay;
This technology is to adopt " the Attapulgite wet beneficiation craft " in application on September 18th, 2003 by the inventor, and the Chinese patent Granted publication number is: CN1224463, Granted publication day: on October 26th, 2005.
The using method of the soft pottery powder of black attapulgite: 1. the soft pottery powder of black attapulgite is placed in the container, slowly in the soft pottery powder of black attapulgite, added 50～60 ℃ hot water, and in time mix and crumple black clod into strips thoroughly, left standstill subsequently 30～60 minutes; 2. methyl-silicone oil is spread upon strip black clod outside surface and crumple once more, be pressed into softish black attapulgite soft ceramic mud, promptly can be used for moulding clear patterns, lovely luster, the artwork that effect is true to nature.
The separate case application of above-mentioned using method patent of invention, number of patent application is 201010240164.3.
Use the soft pottery powder of black attapulgite to add the black attapulgite soft ceramic mud viscosity height that water is made, soft plasticity-is good, have that shrinking percentage is little, indeformable, hardening after seasoning, do not need to toast, do not produce be full of cracks, not mouldy, never degenerate, not skin irritation, nontoxic, non-corrosiveness and do not have the characteristics of greasy feeling.
Production technique of the present invention is simple, and is with low cost, easy to use, helps promoting the use of.
The soft pottery powder of black attapulgite is applicable to the Attapulgite soft ceramic mud of field fabrication black.
Embodiment
The invention will be further described below in conjunction with embodiment:
1, the batching of the soft pottery powder of black attapulgite is made up of following component by weight percentage: Concavo-convex stick after purifying stone clay 54%, wilkinite 20%, sepiolite 12%, iron oxide black 4%, carbon black 3%, calcium chloride 3%, sodium polyacrylate 2%, Xylo-Mucine 1.5% and stearoyl lactate 0.5%.
2, the production method of the soft pottery powder of black attapulgite: after the batch mixes with the soft pottery powder of black attapulgite, pulverize in the input pulverizer, compound particles fineness after the pulverizing is less than 0.250 millimeter, carry out abrasive dust in the mixture input pulverizing mill after will pulverizing again, compound particles fineness behind the abrasive dust is packaged as the finished product of the soft pottery powder of black attapulgite less than 0.045 millimeter.
Claims (1)
1. soft pottery powder of black attapulgite, it is characterized in that the batching of the soft pottery powder of black attapulgite is made up of following component by weight percentage: Concavo-convex stick after purifying stone clay 30～55%, wilkinite 15～25%, sepiolite 5～20%, iron oxide black 1～8%, carbon black 1～5%, calcium chloride 1～5%, sodium polyacrylate 0.1～5%, Xylo-Mucine 0.1～5% and stearoyl lactate 0.1～5%;
The production method of the soft pottery powder of described black attapulgite: after the batch mixes with the soft pottery powder of black attapulgite, pulverize in the input pulverizer, compound particles fineness after the pulverizing is less than 0.250 millimeter, carry out abrasive dust in the mixture input pulverizing mill after will pulverizing again, compound particles fineness behind the abrasive dust is packaged as the finished product of the soft pottery powder of black attapulgite less than 0.045 millimeter;
Described Concavo-convex stick after purifying stone clay, it is the Attapulgite ore deposit mixture that will contain earth impurity, import in the hydrolytic tank after crushed, soak after 24 hours, dash with high-pressure pump and to turn over, and the sieve of the drum by making with stainless steel steel wire sieve removes the impurity more than 1 millimeter, send in the acclive settling tank, continuation is dashed with high-pressure pump and is turned over, after 12 hours, because the proportion in Attapulgite ore deposit is lighter, its the superiors in whole throw out draws this part Attapulgite ore deposit with slush pump and sends in the flat settling tank, emits unnecessary water after 15 hours, through 2-3 days seasoning, take out this part Attapulgite ore deposit and be Concavo-convex stick after purifying stone clay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102404196A CN101973740B (en) | 2010-07-30 | 2010-07-30 | Black attapulgite polymer clay powder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102404196A CN101973740B (en) | 2010-07-30 | 2010-07-30 | Black attapulgite polymer clay powder |
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| Publication Number | Publication Date |
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| CN101973740A CN101973740A (en) | 2011-02-16 |
| CN101973740B true CN101973740B (en) | 2011-08-24 |
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| CN2010102404196A Expired - Fee Related CN101973740B (en) | 2010-07-30 | 2010-07-30 | Black attapulgite polymer clay powder |
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| WO2013007558A2 (en) * | 2011-07-08 | 2013-01-17 | Purac Biochem Bv | Active formulation for use in feed products |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5008226A (en) * | 1989-05-16 | 1991-04-16 | Engelhard Corporation | Process for making acid activated bleaching earth using high susceptibility source clay and novel bleaching earth product |
| CN1167478A (en) * | 1995-08-04 | 1997-12-10 | 総合粘土窯业株式会社 | Synthetic clay for ceramics and process for preparing the same |
| US6130179A (en) * | 1998-11-12 | 2000-10-10 | Itc, Inc. | Purified attapulgite clay |
-
2010
- 2010-07-30 CN CN2010102404196A patent/CN101973740B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5008226A (en) * | 1989-05-16 | 1991-04-16 | Engelhard Corporation | Process for making acid activated bleaching earth using high susceptibility source clay and novel bleaching earth product |
| CN1167478A (en) * | 1995-08-04 | 1997-12-10 | 総合粘土窯业株式会社 | Synthetic clay for ceramics and process for preparing the same |
| US6130179A (en) * | 1998-11-12 | 2000-10-10 | Itc, Inc. | Purified attapulgite clay |
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| CN101973740A (en) | 2011-02-16 |
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