CN102327731B - Granular mineral chlorine-free drying agent - Google Patents
Granular mineral chlorine-free drying agent Download PDFInfo
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- CN102327731B CN102327731B CN 201110191381 CN201110191381A CN102327731B CN 102327731 B CN102327731 B CN 102327731B CN 201110191381 CN201110191381 CN 201110191381 CN 201110191381 A CN201110191381 A CN 201110191381A CN 102327731 B CN102327731 B CN 102327731B
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- 229910052500 inorganic mineral Inorganic materials 0.000 title claims abstract description 82
- 239000011707 mineral Substances 0.000 title claims abstract description 82
- 239000002274 desiccant Substances 0.000 title claims abstract description 48
- 239000004927 clay Substances 0.000 claims abstract description 53
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000000843 powder Substances 0.000 claims abstract description 24
- 239000010459 dolomite Substances 0.000 claims abstract description 23
- 229910000514 dolomite Inorganic materials 0.000 claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000000440 bentonite Substances 0.000 claims abstract description 15
- 229910000278 bentonite Inorganic materials 0.000 claims abstract description 15
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910001570 bauxite Inorganic materials 0.000 claims abstract description 13
- 238000004519 manufacturing process Methods 0.000 claims abstract description 13
- 238000010438 heat treatment Methods 0.000 claims abstract description 10
- 239000000203 mixture Substances 0.000 claims abstract description 10
- ANBBXQWFNXMHLD-UHFFFAOYSA-N aluminum;sodium;oxygen(2-) Chemical compound [O-2].[O-2].[Na+].[Al+3] ANBBXQWFNXMHLD-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910001388 sodium aluminate Inorganic materials 0.000 claims abstract description 9
- 230000020477 pH reduction Effects 0.000 claims description 18
- 238000010298 pulverizing process Methods 0.000 claims description 12
- 239000000725 suspension Substances 0.000 claims description 8
- 239000011265 semifinished product Substances 0.000 claims description 7
- 230000004913 activation Effects 0.000 claims description 4
- 239000000047 product Substances 0.000 claims description 4
- 238000013021 overheating Methods 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 229960000892 attapulgite Drugs 0.000 abstract description 6
- 229910052625 palygorskite Inorganic materials 0.000 abstract description 6
- 230000003068 static effect Effects 0.000 abstract description 6
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 abstract description 3
- 239000000460 chlorine Substances 0.000 abstract description 3
- 229910052801 chlorine Inorganic materials 0.000 abstract description 3
- 238000002156 mixing Methods 0.000 abstract description 3
- 238000004806 packaging method and process Methods 0.000 abstract description 3
- 239000003814 drug Substances 0.000 abstract description 2
- 235000013305 food Nutrition 0.000 abstract description 2
- 239000010985 leather Substances 0.000 abstract description 2
- 231100000252 nontoxic Toxicity 0.000 abstract description 2
- 230000003000 nontoxic effect Effects 0.000 abstract description 2
- 238000001179 sorption measurement Methods 0.000 abstract description 2
- 230000009967 tasteless effect Effects 0.000 abstract description 2
- 239000004753 textile Substances 0.000 abstract description 2
- 229940079593 drug Drugs 0.000 abstract 1
- 238000003756 stirring Methods 0.000 abstract 1
- 235000010755 mineral Nutrition 0.000 description 57
- 239000002253 acid Substances 0.000 description 10
- 239000002699 waste material Substances 0.000 description 6
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 4
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 4
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 235000021110 pickles Nutrition 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 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 3
- 239000007788 liquid Substances 0.000 description 3
- 229910052901 montmorillonite Inorganic materials 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 description 2
- 238000001354 calcination Methods 0.000 description 2
- 235000011132 calcium sulphate Nutrition 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 229910052593 corundum Inorganic materials 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011790 ferrous sulphate Substances 0.000 description 2
- 235000003891 ferrous sulphate Nutrition 0.000 description 2
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 2
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 2
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 2
- 235000019341 magnesium sulphate Nutrition 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 229910001845 yogo sapphire Inorganic materials 0.000 description 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 241000370738 Chlorion Species 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000006253 efflorescence Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000010433 feldspar Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000005213 imbibition Methods 0.000 description 1
- LIKBJVNGSGBSGK-UHFFFAOYSA-N iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Fe+3].[Fe+3] LIKBJVNGSGBSGK-UHFFFAOYSA-N 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 229910052622 kaolinite Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 206010037844 rash Diseases 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Landscapes
- Silicates, Zeolites, And Molecular Sieves (AREA)
Abstract
The invention discloses a granular mineral chlorine-free drying agent. The key points of the technical scheme are that: the granular mineral chlorine-free drying agent consists of red bentonite, dolomite attapulgite clay, bauxite, sulfuric acid, high-viscosity attapulgite clay powder and sodium aluminate. A production method for the granular mineral chlorine-free drying agent comprises the following steps of: mixing red bentonite, dolomite attapulgite clay, and bauxite and acidizing, and stirring and mixing the acidized mixture and high-viscosity attapulgite clay powder, tabletting, performing heat treatment, crushing the mixture which is subject to heat treatment and sodium aluminate together, and packaging to obtain the granular mineral chlorine-free drying agent. The granular mineral chlorine-free drying agent is large in a static water adsorption amount, does not contain chlorine, is non-toxic, tasteless and environment-friendly and does not have contact corrosivity. The granular mineral chlorine-free drying agent can be placed in various packaging bags, is suitable for preventing instruments and meters, electrical equipment, electronic products, medicines, foods, textiles, leather, shoes, clothes and various packaged products from being damped and mildewed or corroded.
Description
Technical field
The present invention relates to drier, be specifically related to a kind of granular mineral chlorine-free drying agent.
Background technology
Mineral agent mainly contains montmorillonite drier and attapulgite drier, montmorillonite drier outward appearance is broken shape, and easily efflorescence is expanded after the moisture absorption, attapulgite drier hydroscopicity can be regulated, outward appearance is spherical, but it contains chlorion, and metallic article is had the contact corrosion, existing without the chlorine drier on the market, although do not add the chloride ion-containing material, Static Water is adsorbed less than 20%, is lower than the standard of relevant drier.
Chinese patent Granted publication CN 100562498C, November 25 2009 Granted publication day, name is called " containing the method that the dolomite Concave-convex clay rod is processed the Industry Waste acid solution and prepared drier ", disclose a kind of " contain the method that the dolomite Concave-convex clay rod is processed the Industry Waste acid solution and prepared drier; it is characterized in that the volume mass ratio by acid pickle and dolomite Concave-convex clay rod is 0.4～1L/kg; add in the acid pickle and contain dolomite Concave-convex clay rod powder; the dolomite in the clay and acid pickle generation neutralization reaction; mixture pH controlled the mixture water content greater than 3 after reaction was finished; Moisture wet mixture obtains the Concave-convex clay rod composite drying agent through the moulding calcining; The Industry Waste acid solution comprises the activated clay production acid waste liquid, produces the acid waste liquid of active silica etc. take Concave-convex clay rod or bentonite and hydrochloric acid or sulfuric acid as raw material.The present invention not only disposal and utilization Concave-convex clay rod or bentonite processing acid waste liquid, realize wastewater zero discharge, and saved common Concave-convex clay rod drier and prepare the raw materials such as required calcium chloride, binding agent, make Concave-convex clay rod composite drying agent production cost decrease.”
Above-mentioned patent weak point is: ⑴ adds in the acid pickle merely and contains dolomite Concave-convex clay rod powder calcination and obtain the Concave-convex clay rod composite drying agent, and the Static Water of survey 24 hours is adsorbed less than 20%; ⑵ in the Concave-convex clay rod mining area exploitation, the dolomite Concave-convex clay rod is a kind of complete mineral, dolomite and Concave-convex clay rod are the monomers of having no idea to be divided into separately, therefore, above-mentioned patent " contains in the dolomite Concave-convex clay rod described, by weight percentage, contains dolomite 10～60%; Concave-convex clay rod is 40～90% ", has no idea to realize in actual production.
Summary of the invention
The objective of the invention is to overcome weak point in the prior art, a kind of granular mineral chlorine-free drying agent is provided.
Granular mineral chlorine-free drying agent is comprised of red bentonite, dolomite Concave-convex clay rod, bauxite, sulfuric acid, high sticking Concave-convex clay rod powder and sodium aluminate.
The production method of granular mineral chlorine-free drying agent: acidification is carried out in red bentonite, dolomite Concave-convex clay rod and bauxite mixing, mix with the sticking Concave-convex clay rod powder of height again, jointly pulverize with sodium aluminate after compressing tablet and the heat treatment, be packaged as granular mineral chlorine-free drying agent.
Iron oxide content in the red bentonite 〉=14%, alundum (Al2O3) content 〉=10%; The content of calcium oxide 〉=24% in the dolomite Concave-convex clay rod, magnesian content 〉=12%; Alundum (Al2O3) content in the bauxite 〉=55%, red bentonite, dolomite Concave-convex clay rod and bauxite are mixed into mineral intermixture, the sulfate mixtures such as generating portion calcium sulfate, magnesium sulfate, ferrous sulfate and aluminum sulfate after the acidified processing of mineral intermixture, calcium sulfate, magnesium sulfate, ferrous sulfate and aluminum sulfate all have higher wettability power, mineral intermixture with acidification carries out activation heat treatment again, has greatly improved the drying effect of the mineral intermixture of acidified processing.
Red bentonite originates in horse race mining area, mountain, Gui Wu town, Xuyi County, Jiangsu Province, and main component has quartz, montmorillonite, kaolinite, bloodstone and feldspar, iron oxide content 〉=14%, reserve has more than 1,000,000 tons, an opencut, because purposes is not extensive, at present not yet can the large tracts of land exploitation.
The Concave-convex clay rod soil property is fine and smooth, and water imbibition is strong, and tool viscosity and plasticity are conducive to the bonding between the raw material when wet, improves adsorption capacity and the granule strength of granular mineral chlorine-free drying agent.
High sticking Concave-convex clay rod powder refers to get 28.0g Concave-convex clay rod powder sample, add in the suspension cup of homogenizer, add again 372g water, the suspension cup is placed on the homogenizer, under 11000 rev/mins of rotating speeds, stirred 20 minutes, to pour in the beaker of 250ml through the high-speed stirred sample suspension again, the viscosity of using NDJ-1 type rotation viscometer to test its suspension, the Concave-convex clay rod powder of tested viscosity value 〉=2200 mPas is high sticking Concave-convex clay rod powder.
Sodium aluminate is strong basicity, easily absorbs moisture content in air.
Dolomite Concave-convex clay rod, bauxite and sodium aluminate are common commodity.
The present invention is achieved by following technical proposals:
1, the batching of granular mineral chlorine-free drying agent is comprised of following component by weight percentage: granular mineral chlorine-free drying agent semi-finished product 65～95% and sodium aluminate 5～35%;
The production method of granular mineral chlorine-free drying agent: the batching of granular mineral chlorine-free drying agent is mixed rear input pulverizer pulverize, grain fineness after the pulverizing≤5.0 millimeter, pack and be granular mineral chlorine-free drying agent finished product, the water content of package≤1.5%;
The half-finished production method of described granular mineral chlorine-free drying agent: 1. mineral intermixture is comprised of red bentonite, dolomite Concave-convex clay rod and bauxite, and the batching of mineral intermixture is comprised of following component by weight percentage: red bentonite 25～55%, dolomite Concave-convex clay rod 20～50% and bauxite 15～40%; 2. pulverize the mineral intermixture grain fineness after the pulverizing≤0.50 millimeter after the batching of mineral intermixture being mixed; 3. the preparation of dilute sulfuric acid is comprised of following component by weight percentage: the sulfuric acid 2～20% of concentration 98 ﹪ and water 80～98%; 4. the batching of acidification is comprised of following component by weight percentage: the mineral intermixture 55～75% after the pulverizing and dilute sulfuric acid 25～45%; 5. dilute sulfuric acid is slowly added in the mineral intermixture after the pulverizing and carry out acidification, the mineral intermixture after the acidified processing was stacked 24～72 hours; 6. the sticking Concave-convex clay rod powder of height is spread in uniform in the mineral intermixture after the acidification, mixes in the input biaxial rneader, mix that extruding is tablet in the rear input twin rollers, the THICKNESS CONTROL of tablet is at 1～5 millimeter; The batching of the mineral intermixture after high sticking Concave-convex clay rod powder and the acidification is comprised of following component by weight percentage: the mineral intermixture 85～95% after high sticking Concave-convex clay rod powder 5～15% and the acidification; 7. tablet is inputted and carried out activation heat treatment in the rotary dryer, temperature during heat treatment is controlled at 250～320 ℃, time is controlled at 60～180 minutes, and the tablet after Overheating Treatment is the semi-finished product of granular mineral chlorine-free drying agent, half-finished water content≤1.0%.
After granular mineral chlorine-free drying agent added measuring cup, placing in the drier that fills saturated aqueous sodium chloride, is under 35 ℃ the condition in temperature, 24 hours Static Water absorption 〉=20%.
Acidification technique of the present invention does not have discharge of wastewater, and method is simple, and is environment friendly and pollution-free.
Granular mineral chlorine-free drying agent is a kind of erose particle, and intensity is good, not powder falling.
Granular mineral chlorine-free drying agent Static Water adsorbance is large, without chlorine, nontoxic, tasteless and contactless corrosivity.
The pH value of granular mineral chlorine-free drying agent meets the standard of dispatching from the factory of relevant mineral agent in 4.0～8.0 scopes.
After granular mineral chlorine-free drying agent used a period of time, drying effect can weaken, through the sun be exposed to the sun or dry after can reuse, capable of being fast degraded when general garbage disposal after granular mineral chlorine-free drying agent is entirely ineffective, do not have environmental pollution.
The granular mineral chlorine-free drying agent production technology is simple, and production cost is low, and is of many uses, is conducive to apply.
Granular mineral chlorine-free drying agent should be placed in the various packaging bags, is applicable to prevent that instrument and meter, electric equipment, electronic product, medicine, food, textile, leather, footwear, clothes and other various connection with wrapping of piece from making moist goes mouldy or corrosion.
The specific embodiment
The invention will be further described below in conjunction with embodiment:
The batching of granular mineral chlorine-free drying agent is comprised of following component by weight percentage: granular mineral chlorine-free drying agent semi-finished product 84% and sodium aluminate 16%;
The production method of granular mineral chlorine-free drying agent: the batching of granular mineral chlorine-free drying agent is mixed rear input pulverizer pulverize, grain fineness after the pulverizing≤2.0 millimeter, pack and be granular mineral chlorine-free drying agent finished product, the water content of package≤1.5%;
The half-finished production method of described granular mineral chlorine-free drying agent: 1. mineral intermixture is comprised of red bentonite, dolomite Concave-convex clay rod and bauxite, and the batching of mineral intermixture is comprised of following component by weight percentage: red bentonite 40%, dolomite Concave-convex clay rod 32% and bauxite 28%; 2. pulverize the mineral intermixture grain fineness after the pulverizing≤0.50 millimeter after the batching of mineral intermixture being mixed; 3. the preparation of dilute sulfuric acid is comprised of following component by weight percentage: the sulfuric acid 12% of concentration 98 ﹪ and water 88%; 4. the batching of acidification is comprised of following component by weight percentage: the mineral intermixture 68% after the pulverizing and dilute sulfuric acid 32%; 5. dilute sulfuric acid is slowly added in the mineral intermixture after the pulverizing and carry out acidification, the mineral intermixture after the acidified processing was stacked 72 hours; 6. the sticking Concave-convex clay rod powder of height is spread in uniform in the mineral intermixture after the acidification, mixes in the input biaxial rneader, mix that extruding is tablet in the rear input twin rollers, the THICKNESS CONTROL of tablet is at 3 millimeters; The batching of the mineral intermixture after high sticking Concave-convex clay rod powder and the acidification is comprised of following component by weight percentage: the mineral intermixture 90% after high sticking Concave-convex clay rod powder 10% and the acidification; 7. tablet is inputted and carried out activation heat treatment in the rotary dryer, temperature during heat treatment is controlled at 300～320 ℃, time is controlled at 150 minutes, and the tablet after Overheating Treatment is the semi-finished product of granular mineral chlorine-free drying agent, half-finished water content≤1.0%.
Through on-the-spot test, behind the semi-finished product adding measuring cup with granular mineral chlorine-free drying agent, place in the drier that fills saturated aqueous sodium chloride, be under 35 ℃ the condition in temperature, 24 hours Static Water absorption 〉=25%, the water content of package≤1.3% reaches the relevant standard of GB/T 10504-2008.
Claims (1)
1. a granular mineral chlorine-free drying agent is characterized in that, the batching of granular mineral chlorine-free drying agent is comprised of following component by weight percentage: granular mineral chlorine-free drying agent semi-finished product 65～95% and sodium aluminate 5～35%;
The production method of granular mineral chlorine-free drying agent: the batching of granular mineral chlorine-free drying agent is mixed rear input pulverizer pulverize, grain fineness after the pulverizing≤5.0 millimeter, pack and be granular mineral chlorine-free drying agent finished product, the water content of package≤1.5%;
The half-finished production method of described granular mineral chlorine-free drying agent: 1. mineral intermixture is comprised of red bentonite, dolomite Concave-convex clay rod and bauxite, and the batching of mineral intermixture is comprised of following component by weight percentage: red bentonite 25～55%, dolomite Concave-convex clay rod 20～50% and bauxite 15～40%; 2. pulverize the mineral intermixture grain fineness after the pulverizing≤0.50 millimeter after the batching of mineral intermixture being mixed; 3. the preparation of dilute sulfuric acid is comprised of following component by weight percentage: the sulfuric acid 2～20% of concentration 98 ﹪ and water 80～98%; 4. the batching of acidification is comprised of following component by weight percentage: the mineral intermixture 55～75% after the pulverizing and dilute sulfuric acid 25～45%; 5. dilute sulfuric acid is slowly added in the mineral intermixture after the pulverizing and carry out acidification, the mineral intermixture after the acidified processing was stacked 24～72 hours; 6. the sticking Concave-convex clay rod powder of height is spread in uniform in the mineral intermixture after the acidification, mixes in the input biaxial rneader, mix that extruding is tablet in the rear input twin rollers, the THICKNESS CONTROL of tablet is at 1～5 millimeter; The batching of the mineral intermixture after high sticking Concave-convex clay rod powder and the acidification is comprised of following component by weight percentage: the mineral intermixture 85～95% after high sticking Concave-convex clay rod powder 5～15% and the acidification; 7. tablet is inputted and carried out activation heat treatment in the rotary dryer, temperature during heat treatment is controlled at 250～320 ℃, time is controlled at 60～180 minutes, and the tablet after Overheating Treatment is the semi-finished product of granular mineral chlorine-free drying agent, half-finished water content≤1.0%;
The sticking Concave-convex clay rod powder of described height refers to get 28.0g Concave-convex clay rod powder sample, add in the suspension cup of homogenizer, add again 372g water, the suspension cup is placed on the homogenizer, under 11000 rev/mins of rotating speeds, stirred 20 minutes, to pour in the beaker of 250ml through the high-speed stirred sample suspension again, the viscosity of using NDJ-1 type rotation viscometer to test its suspension, the Concave-convex clay rod powder of tested viscosity value 〉=2200 mPas is high sticking Concave-convex clay rod powder.
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| CN 201110191381 CN102327731B (en) | 2011-07-10 | 2011-07-10 | Granular mineral chlorine-free drying agent |
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| CN102600705B (en) * | 2012-04-10 | 2014-06-04 | 福建省中医药研究院 | Edible plant dryer |
| CN109499280A (en) * | 2018-10-23 | 2019-03-22 | 东莞理工学院 | A kind of deoxidation drying agent and preparation method thereof |
| CN112473617A (en) * | 2020-11-05 | 2021-03-12 | 安徽绿萝兰环保科技有限公司 | Method for preparing attapulgite drying agent for packaging |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1219594C (en) * | 2003-10-28 | 2005-09-21 | 许盛英 | Natural desiccant and producing process thereof |
| CN100562498C (en) * | 2007-12-06 | 2009-11-25 | 合肥工业大学 | Contain the method that the rhombspar attapulgite clay is handled industrial waste acid liquid and prepared siccative |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU1468601A (en) * | 1999-11-12 | 2001-06-06 | Engelhard Corporation | Sorbent, method of making the sorbent, and method of using the sorbent in fixed bed applications |
| US20030197305A1 (en) * | 2002-04-23 | 2003-10-23 | Mike Collins | Method of using clays to form absorbent materials |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1219594C (en) * | 2003-10-28 | 2005-09-21 | 许盛英 | Natural desiccant and producing process thereof |
| CN100562498C (en) * | 2007-12-06 | 2009-11-25 | 合肥工业大学 | Contain the method that the rhombspar attapulgite clay is handled industrial waste acid liquid and prepared siccative |
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| CN102327731A (en) | 2012-01-25 |
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