CN110100745B - Dust-removing and gas-absorbing attapulgite-based mineral cat litter and preparation method thereof - Google Patents
Dust-removing and gas-absorbing attapulgite-based mineral cat litter and preparation method thereof Download PDFInfo
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- CN110100745B CN110100745B CN201910522028.4A CN201910522028A CN110100745B CN 110100745 B CN110100745 B CN 110100745B CN 201910522028 A CN201910522028 A CN 201910522028A CN 110100745 B CN110100745 B CN 110100745B
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- 229960000892 attapulgite Drugs 0.000 title claims abstract description 74
- 229910052625 palygorskite Inorganic materials 0.000 title claims abstract description 74
- 229910052500 inorganic mineral Inorganic materials 0.000 title claims abstract description 54
- 239000011707 mineral Substances 0.000 title claims abstract description 54
- 241000282326 Felis catus Species 0.000 title claims abstract description 48
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 239000002245 particle Substances 0.000 claims abstract description 74
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 43
- 229910001868 water Inorganic materials 0.000 claims abstract description 43
- 238000001035 drying Methods 0.000 claims abstract description 40
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 33
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical group [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 33
- 239000004115 Sodium Silicate Substances 0.000 claims abstract description 30
- 229910052911 sodium silicate Inorganic materials 0.000 claims abstract description 30
- 239000007788 liquid Substances 0.000 claims abstract description 26
- 239000000428 dust Substances 0.000 claims abstract description 23
- 239000002274 desiccant Substances 0.000 claims abstract description 13
- 239000011248 coating agent Substances 0.000 claims abstract description 12
- 238000000576 coating method Methods 0.000 claims abstract description 11
- 238000005507 spraying Methods 0.000 claims abstract description 11
- 238000010521 absorption reaction Methods 0.000 claims abstract description 5
- 239000002994 raw material Substances 0.000 claims abstract description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 32
- 238000002156 mixing Methods 0.000 claims description 32
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 26
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical class O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 18
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 16
- 239000004576 sand Substances 0.000 claims description 16
- 239000000843 powder Substances 0.000 claims description 15
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 13
- 239000008157 edible vegetable oil Substances 0.000 claims description 12
- 239000008187 granular material Substances 0.000 claims description 12
- 239000002734 clay mineral Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- 238000012216 screening Methods 0.000 claims description 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 4
- 229910021536 Zeolite Inorganic materials 0.000 claims description 4
- 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 claims description 4
- 239000010457 zeolite Substances 0.000 claims description 4
- 239000010433 feldspar Substances 0.000 claims description 3
- 229910052901 montmorillonite Inorganic materials 0.000 claims description 3
- 239000010453 quartz Substances 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 claims description 2
- 229910021529 ammonia Inorganic materials 0.000 claims description 2
- 239000007931 coated granule Substances 0.000 claims description 2
- 238000007865 diluting Methods 0.000 claims description 2
- 238000000227 grinding Methods 0.000 claims description 2
- 239000004615 ingredient Substances 0.000 claims description 2
- 229910052740 iodine Inorganic materials 0.000 claims description 2
- 239000011630 iodine Substances 0.000 claims description 2
- KEAYESYHFKHZAL-BJUDXGSMSA-N sodium-22 Chemical group [22Na] KEAYESYHFKHZAL-BJUDXGSMSA-N 0.000 claims description 2
- 230000008961 swelling Effects 0.000 claims description 2
- 238000011282 treatment Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 8
- 238000001179 sorption measurement Methods 0.000 abstract description 7
- 229910052799 carbon Inorganic materials 0.000 abstract description 2
- 239000003795 chemical substances by application Substances 0.000 abstract description 2
- 238000004332 deodorization Methods 0.000 abstract description 2
- 238000001694 spray drying Methods 0.000 abstract 1
- 230000008569 process Effects 0.000 description 7
- 210000003608 fece Anatomy 0.000 description 6
- 238000007873 sieving Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 229910052604 silicate mineral Inorganic materials 0.000 description 2
- KEAYESYHFKHZAL-OUBTZVSYSA-N sodium-24 Chemical group [24Na] KEAYESYHFKHZAL-OUBTZVSYSA-N 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 235000013599 spices Nutrition 0.000 description 2
- 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 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000007787 solid 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
- A01K1/0154—Litter comprising inorganic material
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Zoology (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Housing For Livestock And Birds (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention provides a dust-removing and gas-absorbing attapulgite-based mineral cat litter and a preparation method thereof, wherein minerals with strong adsorption function and active carbon raw materials are selected to improve the adsorption performance, a surface coating and dust removing treatment step is added on the surface of prepared particles, the used coating dust-removing agent is sodium silicate liquid, and the processed attapulgite-based particles are subjected to spray coating and drying treatment by using diluted sodium silicate solution to obtain the attapulgite-based particles with the surfaces subjected to coating treatment and dust-removing and gas-absorbing liquid deodorization. The attapulgite-based mineral particles for dust removal and gas absorption prepared by the invention have the advantages of low dust removal treatment cost, fine dust removal effect and good effects of absorbing peculiar smell gas, excrement liquid and water, and are particularly suitable for being used as mineral cat litter for treating cat excrement and also can be used as a mineral particle drying agent for other drying purposes.
Description
Technical Field
The invention belongs to the field of attapulgite ore modification processing, and particularly relates to a dust-removing suction fluid attapulgite-based mineral particle and a preparation method thereof. The dust removal means that the dust on the surface of the particles is fixed by using a coating and drying process, the dust does not fall off in the transportation and use processes, the air suction means that the odor gas emitted to the environment can be absorbed, and the liquid suction means that the excrement liquid or water can be absorbed. The mineral particles are particularly suitable for being used as cat litter for treating cat excrement and can also be used as mineral particle drying agents for other drying purposes.
Background
With the improvement of living standard of people, the raised pet becomes fashionable, the number of pet cats increases very fast in recent years, the number of Chinese pet cats is the second place in the world at present, and the production and sale of various cat litter products are promoted to be greatly increased every year; adsorption process drying of various commercial products also has a great demand for granular desiccants every year.
The attapulgite clay is a clay mineral variety with wide resource distribution in China, the world is named the second place in the resource quantity, and the usage and the consumption are the second most clay mineral product next to bentonite, and are also nonmetal mineral varieties with thousands of usages. For cats, the treatment of the excrement is more suitable for natural soil (ore) sand, and the soil sand has natural deodorization and agglomeration functions, is lower in price and higher in cost performance than various plant mixed sands, and the attapulgite-based sand also becomes one of the main choices of many cats. The attapulgite-based mineral cat litter has the remarkable advantages of wide raw material source, strong odor adsorption capacity, low product production cost and the like, so that the sale amount of the attapulgite-based mineral cat litter accounts for about 30 percent of the total mineral cat litter products, and the attapulgite-based mineral cat litter is a variety with larger sale amount in various mineral cat litter products. However, the common attapulgite-based sand also has some defects, such as high dust, and the odor removal capability to be improved.
The attapulgite clay is natural silicate clay mineral which mainly contains attapulgite and takes montmorillonite as an auxiliary clay mineral, and besides the attapulgite clay mineral and the montmorillonite clay mineral, a certain amount of non-clay minerals such as quartz, dolomite, feldspar and the like are generally associated with the attapulgite clay mineral, the minerals have small autogenous crystals and are easy to dissociate and fall off, and the processed products are easy to generate falling dust in the transportation and use processes. At present, part or all plant components are mostly adopted to replace minerals which are easy to generate dust in the improved production process of cat litter so as to reduce the generation amount of dust when the mineral-based cat litter is used, but the combination of the plants and the minerals is poor, and the dust reduction effect of a mixed product of the plants and the minerals is limited; in order to improve the effect of removing the peculiar smell, various spices are mixed and processed in the prior preparation process to cover the peculiar smell, but the cost of the spice product is high, and the peculiar smell gas is not really treated by adopting a covering method.
The liquid sodium silicate is soluble and cheap sodium silicate slurry with high reaction activity, is easy to combine with silicate minerals contained in attapulgite, has better combining capacity with zeolite, active carbon and the like with the same adsorption function, and is coated and dried on the surface of particles, so that a water-soluble solid film is easy to generate on the surface of the particles, fine dust particles on the surface can be fixed, no dust is generated in the using process, and the water-soluble liquid sodium silicate does not influence the adsorption and odor removal treatment of the pet excrement liquid due to the water solubility.
The liquid sodium silicate product is cheap and easy to obtain, is used for dedusting treatment of mineral particles, has the characteristics of convenient process, environmental protection, no dust, strong odor removal capability, good environmental compatibility and the like, is a novel attapulgite-based mineral particle cat litter dedusting agent with excellent comprehensive performance, and can also be used as a mineral particle drying agent for other drying purposes.
Disclosure of Invention
The invention aims to provide attapulgite-based mineral cat litter with dust and gas removing and absorbing functions and a preparation method thereof, and in order to achieve the aim of the invention, the invention is implemented by the following scheme:
the attapulgite-based mineral cat litter with the dust-removing and gas-absorbing liquid is characterized by being prepared from the following raw materials in parts by mass: selecting 80-90 parts of attapulgite, 1-2 parts of sodium carbonate, 2-3 parts of activated zeolite, 2-5 parts of activated carbon, 5-8 parts of calcium carbonate, 0.1-0.3 part of edible oil, 1-2 parts of sodium silicate and 26-33 parts of water; the preparation method comprises selecting attapulgite 80-90, sodium carbonate 1-2, and water 22-25, mixing thoroughly, extruding, storing at room temperature for a week, mixing with activated zeolite 2-3, activated carbon 2-5, and calcium carbonate 5-8, adding edible oil 0.1-0.3, mixing, extruding into cake shape, drying the wet cake material to water content of 7% -8%, then, using a sand making machine to make the dried cake materials into particles with the particle size less than 3mm, screening the particles and collecting particles with the particle size of 0.5-3mm, spraying the particles with sodium silicate solution diluted by 1-2 parts by mass of sodium silicate and 4-8 parts by mass of water to coat the surfaces of the particles, drying again to obtain finished attapulgite particles with the water content of 6-7 percent, can be used as mineral cat litter for treating cat pet feces and can also be used as mineral particle drying agent for other drying purposes.
A low-dust odor-removing attapulgite-based mineral cat litter is characterized in that sodium silicate is industrial liquid sodium silicate with the modulus of 3.1-3.6, selected attapulgite is attapulgite powder with the attapulgite content of more than 50% and the mineral aggregate ground to the fineness of 0.105mm, activated zeolite is zeolite powder with the selected ammonia absorption value of more than 90 mmol/100g and the fineness of 0.075mm, activated carbon powder is activated carbon powder with the iodine absorption value of 800mg/g and the fineness of 0.105mm, and calcium carbonate is powder with the calcium carbonate content and the whiteness of more than 80% and the fineness of 0.075 mm.
A preparation method of low-dust odor-removing attapulgite-based mineral cat litter is characterized by comprising the following steps:
(1) selecting attapulgite: removing quartz and feldspar non-clay minerals from the attapulgite raw ore to obtain attapulgite with the attapulgite content of more than 50%, and grinding to the fineness of 0.105 mm;
(2) swelling attapulgite: mixing attapulgite powder, sodium carbonate and water, extruding, stacking at room temperature for one week to fully dissociate and expand attapulgite and montmorillonite contained in attapulgite;
(3) extruding and drying the ingredients: uniformly mixing the expanded wet material obtained in the step (2) with activated zeolite, activated carbon and calcium carbonate, adding edible oil, mixing, extruding into a cake shape by using an extruder, and drying the cake-shaped wet material until the water content is 7-8%;
(4) sand making and screening: crushing the cake material dried in the step 3 into particles smaller than 3mm by using a sand making machine, screening the particles and collecting granules of 0.5-3mmm, and returning powder smaller than 0.5mm to the step 3 for mixing and reuse;
(5) coating and drying: diluting industrial liquid sodium silicate with the modulus of 3.1-3.6 into sodium silicate coating liquid, spraying the 0.5-3mm granules obtained in the step 4 on the surface of the coated granules, and drying again to obtain finished granules with the water content of 6% -7%.
The invention has the advantages of
By adopting the technical content of the invention, as the industrial liquid sodium silicate which has strong reaction activity and can be dissolved in water is used as the coating agent, the sodium silicate can be chemically combined with silicate minerals and the like contained in the attapulgite-based particles, the fixation of the fallen dust is strengthened, the permeation of liquid into the cat litter is not influenced when the cat litter is contacted with excrement liquid in the subsequent application, and the function of absorbing and removing peculiar smell of the whole granular cat litter is exerted; meanwhile, zeolite with an adsorption function, activated carbon and the like are mixed with attapulgite to improve the peculiar smell removal performance of a single component, and a complete set of mineral pretreatment, sodium treatment, granulation, screening, surface coating and drying treatment processes are adopted to obtain environment-friendly particles with the advantages of high dust removal performance, obvious dust removal effect and moderate production and treatment cost, so that the environment-friendly particles are particularly suitable for being used as mineral cat litter for treating cat pet excrement and can also be used as a mineral particle drying agent for drying. The whole set of process has the characteristics of reasonable utilization of raw material components, dust fall, peculiar smell removal and remarkable drying effect.
Detailed Description
Example 1
A kind of dust-removing and gas-absorbing attapulgite based mineral cat litter and its preparation method, selecting 80 parts of attapulgite with a content of 50% of attapulgite and a fineness of 0.105mm, 1 part of sodium carbonate and 22 parts of water according to the mass parts, fully mixing, extruding, piling for a week at room temperature, uniformly mixing with 2 parts of activated zeolite, 2 parts of activated carbon and 5 parts of calcium carbonate, adding 0.1 part of edible oil, mixing and extruding into cake shape, drying the cake-shaped wet material to a water content of 7% -8%, then crushing the dried cake material into particles smaller than 3mm with a sand making machine, sieving the particles, collecting 0.5-3mm particles, returning the powder smaller than 0.5mm to press cake, spraying the particles with industrial liquid sodium silicate 1 with a modulus of 3.1 and sodium silicate solution diluted with 4 parts of water by mass parts on the surface of the particles, drying again to obtain finished product particles with a water content of 6% -7%, the mineral cat litter suitable for treating pet feces, it can also be used as mineral granule desiccant for other drying purposes.
Example 2
A kind of dust-removing and gas-absorbing attapulgite based mineral cat litter and its preparation method, selecting 90 parts of attapulgite with a content of 50% of attapulgite and a fineness of 0.105mm, 2 parts of sodium carbonate and 25 parts of water, fully mixing, extruding, piling for a week at room temperature, uniformly mixing with 3 parts of activated zeolite, 5 parts of activated carbon and 8 parts of calcium carbonate, adding 0.3 part of edible oil, mixing and extruding into cake shape, drying the cake-shaped wet material to a water content of 7% -8%, then crushing the dried cake material into particles smaller than 3mm with a sand making machine, sieving the particles, collecting 0.5-3mm particles, returning the powder smaller than 0.5mm to press cake, spraying the particles with industrial liquid sodium silicate 2 with a modulus of 3.1 and sodium silicate solution diluted with 8 parts of water by mass, drying again to obtain finished product particles with a water content of 6% -7%, the mineral cat litter suitable for treating pet feces, it can also be used as mineral granule desiccant for other drying purposes.
Example 3
A method for preparing the dust-removing and gas-absorbing attapulgite-based mineral cat litter comprises the steps of selecting 85 parts of attapulgite with the content of 50% of attapulgite and the fineness of 0.105mm, 1.5 parts of sodium carbonate and 24 parts of water according to parts by mass, fully mixing the attapulgite, the sodium carbonate and the water, extruding, stacking for one week, uniformly mixing the attapulgite, the activated zeolite, the activated carbon and the calcium carbonate, adding 0.2 part of edible oil, mixing and extruding into a cake, drying the wet cake to the water content of 7-8%, crushing the dried cake into particles smaller than 3mm by a sand making machine, sieving the particles, collecting 0.5-3mm particles, returning the powder smaller than 0.5mm to a press cake, spraying and coating the particles with industrial liquid sodium silicate solution with the modulus of 3.1 and diluted by 6 parts by mass of water on the surface of the particles, drying again to obtain finished product particles with the water content of 6-7%, and the mineral cat litter is suitable for treating pet feces, it can also be used as mineral granule desiccant for other drying purposes.
Example 4
A kind of dust-removing and gas-absorbing attapulgite based mineral cat litter and its preparation method, selecting 80 parts of attapulgite with 60% attapulgite content and 0.105mm fineness, 1 part of sodium carbonate and 24 parts of water, fully mixing, extruding, piling at room temperature for a week, uniformly mixing with 2 parts of activated zeolite, 2 parts of activated carbon and 5 parts of calcium carbonate, adding 0.1 part of edible oil, mixing and extruding into cake, drying the cake wet material to water content of 7% -8%, then crushing the dried cake material with a sand making machine to particles smaller than 3mm, sieving the particles, collecting 0.5-3mm particles, returning the powder smaller than 0.5mm to press cake, spraying sodium silicate solution diluted by 1 part of industrial liquid sodium silicate glass with modulus of 3.6 and 4 parts of water on the surface of the particles, drying again to obtain finished product particles with water content of 6% -7%, the cat litter suitable for treating pet feces, it can also be used as mineral granule desiccant for other drying purposes.
Example 5
A kind of dust-removing and gas-absorbing attapulgite based mineral cat litter and its preparation method, selecting 90 parts of attapulgite with 60% attapulgite content and 0.105mm fineness, 1.5 parts of sodium carbonate and 25 parts of water, fully mixing, extruding, piling for one week, uniformly mixing with 2 parts of activated zeolite, 5 parts of activated carbon and 8 parts of calcium carbonate, adding 0.3 part of edible oil, mixing and extruding into cake, drying the wet cake to water content of 7% -8%, then crushing the dried cake to particles smaller than 3mm with a sand making machine, sieving the particles, collecting 0.5-3mm particles, returning the powder smaller than 0.5mm to press cake, spraying the particles with sodium silicate solution diluted by 2 parts of industrial liquid sodium silicate glass with modulus of 3.6 and 8 parts of water, coating the surface of the particles, drying again to obtain finished product particles with water content of 6% -7%, the cat litter suitable for treating pet feces, it can also be used as mineral granule desiccant for other drying purposes.
Example 6
A kind of dust-removing and gas-absorbing attapulgite based mineral cat litter and its preparation method, selecting 85 parts of attapulgite with 55% attapulgite content and 0.105mm fineness, 2 parts of sodium carbonate and 27 parts of water, fully mixing, extruding, piling at room temperature for a week, mixing with 2.5 parts of activated zeolite, 3 parts of activated carbon and 7 parts of calcium carbonate, adding 0.2 part of edible oil, mixing and extruding into cake, drying the wet cake to water content of 7% -8%, then crushing the dried cake to particles smaller than 3mm with a sand making machine, sieving the particles, collecting 0.5-3mm particles, returning the powder smaller than 0.5mm to press cake, spraying the particles with industrial liquid sodium silicate glass 1.5 with modulus of 3.4 and sodium silicate solution diluted with 6 parts of water on the surface of the particles, drying again to obtain finished product particles with water content of 6% -7%, the mineral cat litter suitable for treating cat pets, it can also be used as mineral granule desiccant for other drying purposes.
Claims (2)
1. The attapulgite-based mineral cat litter with the dust-removing and gas-absorbing liquid is characterized by being prepared from the following raw materials in parts by mass: selecting 80-90 parts of attapulgite, 1-2 parts of sodium carbonate, 2-3 parts of activated zeolite, 2-5 parts of activated carbon, 5-8 parts of calcium carbonate, 0.1-0.3 part of edible oil, 1-2 parts of sodium silicate and 26-33 parts of water; the preparation method comprises the steps of fully mixing 80-90 parts of selected attapulgite, 1-2 parts of sodium carbonate and 22-25 parts of water, extruding, stacking at room temperature for one week, uniformly mixing with 2-3 parts of activated zeolite, 2-5 parts of activated carbon and 5-8 parts of calcium carbonate, adding 0.1-0.3 part of edible oil, mixing and extruding into a cake shape, drying a wet cake material to the moisture content of 7-8%, crushing the dried cake material into particles smaller than 3mm by using a sand making machine, screening and collecting the particles to obtain 0.5-3mm particles, spraying the particles with sodium silicate solution diluted by 1-2 parts of sodium silicate and 4-8 parts of water on the surface of the coated particles, and drying again to obtain finished particles with the moisture content of 6-7%, wherein the finished particles can be used as mineral cat litter for treating cat excrement and can also be used as a mineral particle drying agent for other drying purposes; wherein: the sodium silicate is industrial liquid sodium silicate with the modulus of 3.1-3.6, the selected attapulgite is attapulgite powder with the attapulgite content of more than 50% and the fineness of 0.105mm, the activated zeolite is zeolite powder with the ammonia absorption value of more than 90 mmol/100g and the fineness of 0.075mm, the activated carbon is activated carbon powder with the iodine absorption value of 800mg/g and the fineness of 0.105mm, and the calcium carbonate is powder with the calcium carbonate content and the whiteness of more than 80% and the fineness of 0.075 mm.
2. The method for preparing the attapulgite-based mineral cat litter with the dust and gas removed and absorbed in the claim 1 is characterized by comprising the following steps:
(1) selecting attapulgite: removing quartz and feldspar non-clay minerals from the attapulgite raw ore to obtain attapulgite with the attapulgite content of more than 50%, and grinding to the fineness of 0.105 mm;
(2) swelling attapulgite: mixing attapulgite, sodium carbonate and water, extruding, stacking at room temperature for one week to dissociate and expand attapulgite and montmorillonite;
(3) extruding and drying the ingredients: uniformly mixing the wet material expanded in the step (2) with activated zeolite, activated carbon and calcium carbonate, adding edible oil, mixing, extruding into a cake shape by using an extruder, and drying the cake-shaped wet material until the water content is 7-8%;
(4) sand making and screening: crushing the cake material dried in the step 3 into particles smaller than 3mm by using a sand making machine, screening the particles and collecting granules of 0.5-3mm, and returning powder smaller than 0.5mm to the step 3 for mixing and reuse;
(5) coating and drying: diluting industrial liquid sodium silicate with the modulus of 3.1-3.6 into sodium silicate coating liquid, spraying the 0.5-3mm granules obtained in the step 4 on the surface of the coated granules, and drying again to obtain finished granules with the water content of 6% -7%.
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| CN201910522028.4A CN110100745B (en) | 2019-06-17 | 2019-06-17 | Dust-removing and gas-absorbing attapulgite-based mineral cat litter and preparation method thereof |
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| CN110100745B true CN110100745B (en) | 2021-05-14 |
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| CN114451312A (en) * | 2022-02-16 | 2022-05-10 | 西北师范大学 | Attapulgite-based clay composite cat litter |
| CN115428737B (en) * | 2022-08-26 | 2023-11-28 | 柳州工学院 | Pet cat litter and preparation method thereof |
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| EP3713398B1 (en) * | 2017-11-20 | 2022-04-27 | Société des Produits Nestlé S.A. | Pet litter having an activated carbon layer and methods of making the litter |
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| US4671208A (en) * | 1984-12-07 | 1987-06-09 | International Packaging, Inc. | Clay and limestone composition |
| WO1999046979A1 (en) * | 1998-03-18 | 1999-09-23 | Gimborn, Inc. | Litter product and process for its manufacture |
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