CN104521780A - Low-carbon environment-friendly low-cost mixed cat litter and preparation method thereof - Google Patents
Low-carbon environment-friendly low-cost mixed cat litter and preparation method thereof Download PDFInfo
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- CN104521780A CN104521780A CN201410726316.9A CN201410726316A CN104521780A CN 104521780 A CN104521780 A CN 104521780A CN 201410726316 A CN201410726316 A CN 201410726316A CN 104521780 A CN104521780 A CN 104521780A
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- cat litter
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- modified straw
- straw charcoal
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- 241000282326 Felis catus Species 0.000 title claims abstract description 35
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 16
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 239000010902 straw Substances 0.000 claims abstract description 31
- 239000003610 charcoal Substances 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229920000742 Cotton Polymers 0.000 claims abstract description 10
- 239000010893 paper waste Substances 0.000 claims abstract description 10
- 239000002994 raw material Substances 0.000 claims abstract description 8
- 239000004372 Polyvinyl alcohol Substances 0.000 claims abstract description 7
- 229910021536 Zeolite Inorganic materials 0.000 claims abstract description 7
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000002808 molecular sieve Substances 0.000 claims abstract description 7
- 229920002451 polyvinyl alcohol Polymers 0.000 claims abstract description 7
- 235000019353 potassium silicate Nutrition 0.000 claims abstract description 7
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims abstract description 7
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000010457 zeolite Substances 0.000 claims abstract description 7
- 238000001035 drying Methods 0.000 claims abstract description 6
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims abstract description 4
- 229960000892 attapulgite Drugs 0.000 claims abstract description 4
- 239000001110 calcium chloride Substances 0.000 claims abstract description 4
- 229910001628 calcium chloride Inorganic materials 0.000 claims abstract description 4
- 239000004927 clay Substances 0.000 claims abstract description 4
- 229910052625 palygorskite Inorganic materials 0.000 claims abstract description 4
- 238000002156 mixing Methods 0.000 claims description 22
- 239000002002 slurry Substances 0.000 claims description 21
- 229920002472 Starch Polymers 0.000 claims description 9
- 239000011812 mixed powder Substances 0.000 claims description 9
- 235000019698 starch Nutrition 0.000 claims description 9
- 239000008107 starch Substances 0.000 claims description 9
- LUEWUZLMQUOBSB-FSKGGBMCSA-N (2s,3s,4s,5s,6r)-2-[(2r,3s,4r,5r,6s)-6-[(2r,3s,4r,5s,6s)-4,5-dihydroxy-2-(hydroxymethyl)-6-[(2r,4r,5s,6r)-4,5,6-trihydroxy-2-(hydroxymethyl)oxan-3-yl]oxyoxan-3-yl]oxy-4,5-dihydroxy-2-(hydroxymethyl)oxan-3-yl]oxy-6-(hydroxymethyl)oxane-3,4,5-triol Chemical compound O[C@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1O[C@@H]1[C@@H](CO)O[C@@H](O[C@@H]2[C@H](O[C@@H](OC3[C@H](O[C@@H](O)[C@@H](O)[C@H]3O)CO)[C@@H](O)[C@H]2O)CO)[C@H](O)[C@H]1O LUEWUZLMQUOBSB-FSKGGBMCSA-N 0.000 claims description 6
- 241001312219 Amorphophallus konjac Species 0.000 claims description 6
- 235000001206 Amorphophallus rivieri Nutrition 0.000 claims description 6
- 229920002581 Glucomannan Polymers 0.000 claims description 6
- 229920002752 Konjac Polymers 0.000 claims description 6
- 239000010881 fly ash Substances 0.000 claims description 6
- 229940046240 glucomannan Drugs 0.000 claims description 6
- 239000000252 konjac Substances 0.000 claims description 6
- 235000010485 konjac Nutrition 0.000 claims description 6
- 239000010802 sludge Substances 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 238000005469 granulation Methods 0.000 claims description 4
- 230000003179 granulation Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- NOOLISFMXDJSKH-UTLUCORTSA-N (+)-Neomenthol Chemical compound CC(C)[C@@H]1CC[C@@H](C)C[C@@H]1O NOOLISFMXDJSKH-UTLUCORTSA-N 0.000 claims description 3
- NOOLISFMXDJSKH-UHFFFAOYSA-N DL-menthol Natural products CC(C)C1CCC(C)CC1O NOOLISFMXDJSKH-UHFFFAOYSA-N 0.000 claims description 3
- 235000008331 Pinus X rigitaeda Nutrition 0.000 claims description 3
- 235000011613 Pinus brutia Nutrition 0.000 claims description 3
- 241000018646 Pinus brutia Species 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 229940041616 menthol Drugs 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 239000006255 coating slurry Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 210000002700 urine Anatomy 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 239000000440 bentonite Substances 0.000 description 3
- 229910000278 bentonite Inorganic materials 0.000 description 3
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 241001465754 Metazoa Species 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000001877 deodorizing effect Effects 0.000 description 1
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 229910052901 montmorillonite Inorganic materials 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K1/00—Housing animals; Equipment therefor
- A01K1/015—Floor coverings, e.g. bedding-down sheets ; Stable floors
- A01K1/0152—Litter
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K1/00—Housing animals; Equipment therefor
- A01K1/015—Floor coverings, e.g. bedding-down sheets ; Stable floors
- A01K1/0152—Litter
- A01K1/0154—Litter comprising inorganic material
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K1/00—Housing animals; Equipment therefor
- A01K1/015—Floor coverings, e.g. bedding-down sheets ; Stable floors
- A01K1/0152—Litter
- A01K1/0155—Litter comprising organic material
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Zoology (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Housing For Livestock And Birds (AREA)
Abstract
The invention discloses a low-carbon environment-friendly low-cost mixed cat litter which is characterized in that the cat litter is prepared from the raw materials of, by weight, 35-40 parts of modified straw charcoal, 5-7 parts of calcium chloride, 8-10 parts of zeolite molecular sieve, 5-7 parts of water glass, 13-15 parts of natural clay, 9.5-11 parts of attapulgite, 4-6 parts of old cotton products, 7-8 parts of waste paper, 6-8 parts of polyvinyl alcohol, 7.5-9 parts of orange peel, and 45-50 parts of water. According to the invention, the modified straw charcoal is first prepared with a special means, and is adopted as a base layer of the cat litter; and a coating slurry prepared from the old cotton products, waste paper, orange peel and the like is added to the surface of the modified straw charcoal. The cat litter obtained after drying has a doubled water absorption effect, and a refreshing smell. The preparation process is simple, and causes no wasting during a production process. Therefore, cost is saved, and the cat litter is safe and environment-friendly.
Description
Technical field
The present invention relates to a kind of pet bedding and padding cat litter and preparation method, mixing cat litter that particularly a kind of low-carbon environment-friendly cost is low and preparation method thereof.
Background technology
Cat litter is the bedding and padding of the small animal such as cat, dog of keeping a pet for family, and having the advantages such as deodorizing, adsorptivity is strong, nontoxic, pollution-free, quantity of refuse is few, is a kind of home-use Green Product.Domestic and international cat litter mainly contains bentonite, montmorillonite and silica type, general is all that above-mentioned single component and organic bonding agent are mixed, generally adopt silica gel cat litter at present, also have and adopt bentonite and organic matter base-material and organic adhesive mixing granulation to make, when the ight soil of cat or urine contact with cat litter, due to the hygroscopic effect of cat litter, with with ight soil or urine shape all-in-one-piece spherical, the cat litter that ight soil or urine are infected with in end is then not contaminated, can continue to use, and the cleaning ight soil of small animal and urine become extremely light, also for pet feeding brings relaxation and happiness and environmental protection.But the raw material bentonite consumption that the cat litter adopting above-mentioned compound to suppress uses is large, and also there is a large amount of loss in pressing process, so that cost is high.
The present invention, in order to cost-saving, by twice laids such as shabby cotton products, waste paper, orange skins, added in cat litter composition by special process and makes coated slurry, have delicate fragrance, improve peculiar smell.First the present invention makes modified straw charcoal by any special measures, as the basic unit of cat litter, then adds coated slurry at modified straw carbon surface, the cat litter made after drying has double soaking effect, and technique is simple, can not there is waste in production process, save cost, safety and environmental protection.
Summary of the invention
The object of this invention is to provide low mixing cat litter of a kind of low-carbon environment-friendly cost and preparation method thereof.
In order to realize object of the present invention, the present invention is by following scheme implementation:
The mixing cat litter that low-carbon environment-friendly cost is low, is made up of the raw material of following weight portion: modified straw charcoal 35-40, calcium chloride 5-7, zeolite molecular sieve 8-10, waterglass 5-7, natural clay 13-15, attapulgite 9.5-11, shabby cotton products 4-6, waste paper 7-8, polyvinyl alcohol 6-8, orange skin 7.5-9, water 45-50;
Described modified straw charcoal comprises the raw material of following weight portion: straw 100-120, fallen leaves 20-30, municipal sludge 50-60, flyash 10-14, konjac glucomannan 6-8, waterglass 8-11, pine needle oil 0.1-0.2, menthol 1-2,10% starch slurry 9-11, preparation method is first by flyash, konjac glucomannan adds in municipal sludge and mixes, by straw, fallen leaves are ground into the material of 2-3 centimetre, all put into retort under 600 DEG C of-650 DEG C of conditions, spend charing 2-3 hour, room temperature is cooled to after taking-up, be ground into 100-150 order mixed-powder, then all the other residual componentss except 10% starch slurry are added, 5-10 minute is stirred with the speed of 600-800 rev/min, add granulation in comminutor, after cooling, 10% starch slurry is sprayed at particle surface to moist, modified straw charcoal is drying to obtain under 40 DEG C of-50 DEG C of conditions.
The mixing cat litter that a kind of low-carbon environment-friendly cost of the present invention is low, be made up of following concrete steps:
(1) zeolite molecular sieve, shabby cotton products, waste paper, orange skin are put in an oven, dry under 50 DEG C of-55 DEG C of conditions, put into cracker and be ground into 100-150 order mixed-powder;
(2) polyvinyl alcohol is added to the water, is heated to 30 DEG C-35 DEG C, stirs, form the solution of certain viscosity;
(3) step (1) mixed-powder is mixed with step (2) solution, adds all the other residual componentss except modified straw charcoal, and put into agitator with the speed of 450-550 rev/min stir within 30-40 minute, make mixing slurry;
(4) modified straw charcoal is placed in blending tank, adds mixing slurry in step (3), mix, mixing slurry is wrapped in modified straw carbon surface equably, then puts into drier dry, make water content finally reach 6%-8% and namely obtain cat litter of the present invention.
The invention has the beneficial effects as follows: first the present invention makes modified straw charcoal by any special measures, as the basic unit of cat litter, then add at modified straw carbon surface the coated slurry that shabby cotton products, waste paper, orange skin etc. make, the cat litter made after drying has double soaking effect, smell is pure and fresh, and technique is simple, can not there is waste in production process, save cost, safety and environmental protection.
Specific embodiments
Below by instantiation, the present invention is described in detail.
The mixing cat litter that low-carbon environment-friendly cost is low, is made up of the raw material of following weight portion (kilogram): modified straw charcoal 35, calcium chloride 5, zeolite molecular sieve 8, waterglass 5, natural clay 13, attapulgite 9.5, shabby cotton products 4, waste paper 7, polyvinyl alcohol 6, orange skin 7.5, water 45;
Described modified straw charcoal comprises the raw material of following weight portion (kilogram): straw 100, fallen leaves 20, municipal sludge 50, flyash 10, konjac glucomannan 6, waterglass 8, pine needle oil 0.1, menthol 1,10% starch slurry 9, preparation method is first by flyash, konjac glucomannan adds in municipal sludge and mixes, by straw, fallen leaves are ground into the material of 2-3 centimetre, all put into retort under 600 DEG C of-650 DEG C of conditions, spend charing 2-3 hour, room temperature is cooled to after taking-up, be ground into 100-150 order mixed-powder, then all the other residual componentss except 10% starch slurry are added, 5-10 minute is stirred with the speed of 600-800 rev/min, add granulation in comminutor, after cooling, 10% starch slurry is sprayed at particle surface to moist, modified straw charcoal is drying to obtain under 40 DEG C of-50 DEG C of conditions.
The mixing cat litter that a kind of low-carbon environment-friendly cost of the present invention is low, be made up of following concrete steps:
(1) zeolite molecular sieve, shabby cotton products, waste paper, orange skin are put in an oven, dry under 50 DEG C of-55 DEG C of conditions, put into cracker and be ground into 100-150 order mixed-powder;
(2) polyvinyl alcohol is added to the water, is heated to 30 DEG C-35 DEG C, stirs, form the solution of certain viscosity;
(3) step (1) mixed-powder is mixed with step (2) solution, adds all the other residual componentss except modified straw charcoal, and put into agitator with the speed of 450-550 rev/min stir within 30-40 minute, make mixing slurry;
(4) modified straw charcoal is placed in blending tank, adds mixing slurry in step (3), mix, mixing slurry is wrapped in modified straw carbon surface equably, then puts into drier dry, make water content finally reach 6%-8% and namely obtain cat litter of the present invention.
Cat litter of the present invention layer overlay thickness in clean cat litter box is about the cat litter of 6-7 centimetre, and use 20 days odorless, frees from extraneous odour continuously, the cat litter after using can directly recycle, pollution-free.
Claims (2)
1. the mixing cat litter that a low-carbon environment-friendly cost is low, it is characterized in that, be made up of the raw material of following weight portion: modified straw charcoal 35-40, calcium chloride 5-7, zeolite molecular sieve 8-10, waterglass 5-7, natural clay 13-15, attapulgite 9.5-11, shabby cotton products 4-6, waste paper 7-8, polyvinyl alcohol 6-8, orange skin 7.5-9, water 45-50;
Described modified straw charcoal comprises the raw material of following weight portion: straw 100-120, fallen leaves 20-30, municipal sludge 50-60, flyash 10-14, konjac glucomannan 6-8, waterglass 8-11, pine needle oil 0.1-0.2, menthol 1-2,10% starch slurry 9-11, preparation method is first by flyash, konjac glucomannan adds in municipal sludge and mixes, by straw, fallen leaves are ground into the material of 2-3 centimetre, all put into retort under 600 DEG C of-650 DEG C of conditions, spend charing 2-3 hour, room temperature is cooled to after taking-up, be ground into 100-150 order mixed-powder, then all the other residual componentss except 10% starch slurry are added, 5-10 minute is stirred with the speed of 600-800 rev/min, add granulation in comminutor, after cooling, 10% starch slurry is sprayed at particle surface to moist, modified straw charcoal is drying to obtain under 40 DEG C of-50 DEG C of conditions.
2. the mixing cat litter that a kind of low-carbon environment-friendly cost is low according to claim 1, is characterized in that, is made up of following concrete steps:
(1) zeolite molecular sieve, shabby cotton products, waste paper, orange skin are put in an oven, dry under 50 DEG C of-55 DEG C of conditions, put into cracker and be ground into 100-150 order mixed-powder;
(2) polyvinyl alcohol is added to the water, is heated to 30 DEG C-35 DEG C, stirs, form the solution of certain viscosity;
(3) step (1) mixed-powder is mixed with step (2) solution, adds all the other residual componentss except modified straw charcoal, and put into agitator with the speed of 450-550 rev/min stir within 30-40 minute, make mixing slurry;
(4) modified straw charcoal is placed in blending tank, adds mixing slurry in step (3), mix, mixing slurry is wrapped in modified straw carbon surface equably, then puts into drier dry, make water content finally reach 6%-8% and namely obtain cat litter of the present invention.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410726316.9A CN104521780A (en) | 2014-12-04 | 2014-12-04 | Low-carbon environment-friendly low-cost mixed cat litter and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410726316.9A CN104521780A (en) | 2014-12-04 | 2014-12-04 | Low-carbon environment-friendly low-cost mixed cat litter and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104521780A true CN104521780A (en) | 2015-04-22 |
Family
ID=52837564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410726316.9A Pending CN104521780A (en) | 2014-12-04 | 2014-12-04 | Low-carbon environment-friendly low-cost mixed cat litter and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104521780A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110100745A (en) * | 2019-06-17 | 2019-08-09 | 内蒙古润隆化工有限责任公司 | A kind of dust removal air-breathing liquid concave convex rod soil matrix mineral cat litter and preparation method |
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| CN1568671A (en) * | 2004-05-10 | 2005-01-26 | 杭州临安黑川膨润土有限公司 | Pet used cat litter and preparation method thereof |
| CN102150627A (en) * | 2011-01-26 | 2011-08-17 | 青岛弗兰克精细化工有限公司 | Cat litter and making method thereof |
| CN102273410A (en) * | 2011-08-10 | 2011-12-14 | 天津腾驰宠物用品有限公司 | Natural plant cat litter |
| CN103283610A (en) * | 2013-06-13 | 2013-09-11 | 江苏中恒宠物用品股份有限公司 | Preparation method of straw quality cat litter for pet |
| CN103348923A (en) * | 2013-06-19 | 2013-10-16 | 芜湖悠派卫生用品有限公司 | High water-absorbing straw cat litter |
| CN104082159A (en) * | 2014-07-11 | 2014-10-08 | 山东理工大学 | Method for chemically modifying straw powder and manufacturing cat litter through chemically-modified straw powder |
-
2014
- 2014-12-04 CN CN201410726316.9A patent/CN104521780A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1568671A (en) * | 2004-05-10 | 2005-01-26 | 杭州临安黑川膨润土有限公司 | Pet used cat litter and preparation method thereof |
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| CN102273410A (en) * | 2011-08-10 | 2011-12-14 | 天津腾驰宠物用品有限公司 | Natural plant cat litter |
| CN103283610A (en) * | 2013-06-13 | 2013-09-11 | 江苏中恒宠物用品股份有限公司 | Preparation method of straw quality cat litter for pet |
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| CN104082159A (en) * | 2014-07-11 | 2014-10-08 | 山东理工大学 | Method for chemically modifying straw powder and manufacturing cat litter through chemically-modified straw powder |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110100745A (en) * | 2019-06-17 | 2019-08-09 | 内蒙古润隆化工有限责任公司 | A kind of dust removal air-breathing liquid concave convex rod soil matrix mineral cat litter and preparation method |
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Application publication date: 20150422 |