CN1400273A - Bio-degradable dust-removing agent, its preparation and application - Google Patents
Bio-degradable dust-removing agent, its preparation and application Download PDFInfo
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- CN1400273A CN1400273A CN 01123865 CN01123865A CN1400273A CN 1400273 A CN1400273 A CN 1400273A CN 01123865 CN01123865 CN 01123865 CN 01123865 A CN01123865 A CN 01123865A CN 1400273 A CN1400273 A CN 1400273A
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- depositing dust
- oil
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- 239000000839 emulsion Substances 0.000 claims abstract description 15
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- 229920000642 polymer Polymers 0.000 claims abstract description 13
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- 150000001720 carbohydrates Chemical class 0.000 claims abstract description 7
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- 241001465754 Metazoa Species 0.000 claims abstract description 5
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- QJZYHAIUNVAGQP-UHFFFAOYSA-N 3-nitrobicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid Chemical compound C1C2C=CC1C(C(=O)O)C2(C(O)=O)[N+]([O-])=O QJZYHAIUNVAGQP-UHFFFAOYSA-N 0.000 claims description 2
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- 235000010489 acacia gum Nutrition 0.000 claims description 2
- 239000000205 acacia gum Substances 0.000 claims description 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims description 2
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- 235000019426 modified starch Nutrition 0.000 claims description 2
- 235000010987 pectin Nutrition 0.000 claims description 2
- 239000001814 pectin Substances 0.000 claims description 2
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- 239000004632 polycaprolactone Substances 0.000 claims description 2
- 239000004925 Acrylic resin Substances 0.000 claims 1
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- 241000978776 Senegalia senegal Species 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 239000010775 animal oil Substances 0.000 abstract description 2
- 239000003960 organic solvent Substances 0.000 abstract description 2
- 229910001514 alkali metal chloride Inorganic materials 0.000 abstract 1
- 150000001340 alkali metals Chemical class 0.000 abstract 1
- 229910001617 alkaline earth metal chloride Inorganic materials 0.000 abstract 1
- 239000010426 asphalt Substances 0.000 abstract 1
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- 230000000694 effects Effects 0.000 description 7
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- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 4
- 229910017053 inorganic salt Inorganic materials 0.000 description 4
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 239000001110 calcium chloride Substances 0.000 description 3
- 229910001628 calcium chloride Inorganic materials 0.000 description 3
- 239000003818 cinder Substances 0.000 description 3
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- 238000005516 engineering process Methods 0.000 description 3
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- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 description 2
- 239000004141 Sodium laurylsulphate Substances 0.000 description 2
- 239000012298 atmosphere Substances 0.000 description 2
- 239000004359 castor oil Substances 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 229910001629 magnesium chloride Inorganic materials 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 235000019333 sodium laurylsulphate Nutrition 0.000 description 2
- RYYKJJJTJZKILX-UHFFFAOYSA-M sodium octadecanoate Chemical compound [Na+].CCCCCCCCCCCCCCCCCC([O-])=O RYYKJJJTJZKILX-UHFFFAOYSA-M 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 244000215068 Acacia senegal Species 0.000 description 1
- 229920000945 Amylopectin Polymers 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 244000068988 Glycine max Species 0.000 description 1
- 235000010469 Glycine max Nutrition 0.000 description 1
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 1
- DPDMMXDBJGCCQC-UHFFFAOYSA-N [Na].[Cl] Chemical compound [Na].[Cl] DPDMMXDBJGCCQC-UHFFFAOYSA-N 0.000 description 1
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- 229920003232 aliphatic polyester Polymers 0.000 description 1
- 150000004996 alkyl benzenes Chemical class 0.000 description 1
- 229920002988 biodegradable polymer Polymers 0.000 description 1
- 239000004621 biodegradable polymer Substances 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 159000000007 calcium salts Chemical class 0.000 description 1
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- 239000002817 coal dust Substances 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000008157 edible vegetable oil Substances 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 150000002191 fatty alcohols Chemical class 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 description 1
- 230000036541 health Effects 0.000 description 1
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- TVXXNOYZHKPKGW-UHFFFAOYSA-N sodium molybdate (anhydrous) Chemical compound [Na+].[Na+].[O-][Mo]([O-])(=O)=O TVXXNOYZHKPKGW-UHFFFAOYSA-N 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- DAJSVUQLFFJUSX-UHFFFAOYSA-M sodium;dodecane-1-sulfonate Chemical compound [Na+].CCCCCCCCCCCCS([O-])(=O)=O DAJSVUQLFFJUSX-UHFFFAOYSA-M 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
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Landscapes
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention relates to a bio-degradable dust-settling agent which is an emulsion liquor composed of 0-50 portions of alkali metal or alkaline earth metal chloride, 10-100 portions of bio-degradable compounded polymer substance, 0.05-15 portions of surfactant and 10-300 portions of water, in which the described bio-degradable copounded polymer substance can be two kinds of more than two kinds selected from carbohydrate, animal and plant oil and fat, animal and plant gum and glue and their derivative, cellulose and its derivative and degradable plastics. Said invention dust-settling agent contains no asphalt and organic solvent, after it is sprayed, it can be bio-degraded so as to prevent secondary environment pollution.
Description
Invention field
The present invention relates to the environmental protection field, relate in particular to a kind of depositing dust agent of dust pollution of all kinds of surfaces that are used to reduce public place and exposed dust, biodegradable component has been adopted in this depositing dust agent, can avoid taking place secondary pollution when being used for depositing dust.
Background technology
Development of economic drive urban construction and growth in the living standard, brought new problem simultaneously, it is exactly control of environmental pollution demand, particularly topsoil, such as airborne dust increase, harmful gas content increases etc. in the air, for the major objective in the control atmosphere pollution---pellet (being often referred to particle diameter is the 2.5-10 micron, is suspended in airborne solid particulate and drop), each state has all dropped into a large amount of human and material resources.EPA (EPA) statistics the whole America dust emission in 1988 was the fifty-five million ton, drops to 2,500 ten thousand tons to nineteen ninety, remained on this level to 1997.Pellet also is to comprise one of primary pollutant in the metropolis in Beijing at present, the agglomerate of airborne dust and airborne dust and other pollutent, and to children, old man and have the crowd of respiratory problems to endanger maximum also can make healthy population ill simultaneously.Airborne dust can influence photosynthesis of plants in addition, to instrument, and equipment, the household health is brought harm.
Technology and industrial expansion are also had higher requirement to the correlation technique that comprises environmental protection simultaneously thus.At the depositing dust of public place, the method that adopts mainly contains at present:
1, spread water: advantage is free from environmental pollution, and each process cost is cheap; Shortcoming is because water evaporates is very fast, desires to reach the purpose of control airborne dust, need continue to spread water, causes the waste of a large amount of valuable water resourcess.
2, spray villaumite: by strong absorption atmosphere and surface water, reduce water evaporates in xeothermic season, by moisture content dust is condensed, it is hard to form appearance, and rubbly surface reaches the effect of dust Control.Advantage is inexpensive, and is easy to use, for example Chinese invention patent CN96103245 disclosed a kind of " dust-adhesive fire retardant "; But its shortcoming is easily to be washed out by rainwater, need repeatedly to spray, and a large amount of villaumites water that permeates the ground can injure farm crop.
3, use some petroleum chemicals or by product (used oil, lubricating oil, petroleum resin and derivative): be made into emulsion and be sprayed at desire depositing dust surface, form dust layer.The advantage of this method is that dustproof effect is better, but also can produce fatal shortcoming, be exactly secondary pollution environment (referring to heavy metal, particularly Qian deposition), and cost is higher.
4, use high score subclass material: U.S. Pat P5667718 for example, adopt the thin shale/volcanic cinder of powder and the emulsion of villaumite, vegetables oil to be mixed with road-making material, the minimizing dust on the roads.U.S. Pat P6086647 then discloses the technology of molasses/oil with bituminous mixture inhibition coal dust.The former defective is that the shale/volcanic cinder source as basic raw material is restricted, and implements inconvenient.The pitch that the latter uses is petrochemical industry product, non-degradable own.A large amount of uses of these measurements for reduction also can cause new environmental protection problem.
We can say, in the human process of getting along, need constantly make great efforts to change environment, but because of self limitation, often will take an unnecessary way and pay painful cost for this reason in development with the Nature.Also being same in the process of curbing environmental pollution, usually is good original intention, and what bring but is more serious secondary pollution.TIMESBEACH incident in 1971 for example, the waste residue and the waste oil of a service station of Missouri, USA have been made into the depositing dust agent, and the depositing dust effect is pretty good, and is with low cost, but what bring is the pollution of two English.Its reminds people when administering airborne dust, also should be expected the influence to environment, should not bring environment in the future especially especially and pollute once more and destroy.
Summary of the invention
The invention provides the agent of a kind of environment-friendly type depositing dust, it does not need pitch and organic solvent in forming, and need not adopt shale/volcanic cinder to carry out premix yet, and is biodegradable after spraying, thereby avoids the secondary pollution environment.
The present invention also provides the preparation method and the application of this depositing dust agent in administering dust pollution of this depositing dust agent.
Environment-friendly type depositing dust provided by the invention agent, it is a kind of aqueous emulsion that consists essentially of inorganic salt, biodegradable composite polymer substance and tensio-active agent, wherein, the weight ratio of each component is: inorganic salt 0-50 part, biodegradable composite polymer substance 10-100 part, tensio-active agent 0.05-15 part, water 10-300 part.
The inorganic salt that reach of the present invention can be selected from the muriate of basic metal or alkaline-earth metal, for example magnesium chloride, calcium chloride, sodium-chlor, Repone K etc.
In the optional self-carbon water compound of described biodegradable composite polymer substance, animal-plant oil, natural glue class and derivative, Mierocrystalline cellulose and derivative thereof and the degradable plastics two or more, and should include water-soluble in this polymer substance simultaneously and oil soluble raw material thing.
Wherein, described carbohydrate can be selected from for example known carbohydrate products such as molasses, syrup, dextrin, starch and modified starch.
Animal and plant grease used in the present invention is generally grease, oil foot or the oil foot degradation product of the animal and plant oil that contains lipid acid, glycerine, acidifying oil or phosphatide.
Degradable natural animal-plant glue class comprises gelatin, gum arabic, seaweed gel, carrageenin, pectin, humic acid colloid etc.Described Mierocrystalline cellulose and derivative thereof then can comprise for example chitin, soluble fiber element, xylogen, sulfonated lignin, for example its calcium salt or sodium salt etc.
Degradable plastics then comprises any known plastics that are degraded or raw material, for example polycaprolactone, polyethylene propylene acid polymer (can with starch copolymerization) or poly-3-hydroxyl butyric acid, aliphatic polyester and multipolymer etc.
The effect of polymer substance of the present invention in the depositing dust agent is to utilize the chain-like structure of polymer substance and the adsorptivity of its esters, and grit is become big, very causes and is solidified into hard shell-like structure.So the selection of the biodegradable polymer substance that is fit among the present invention is not limited to the above type, can according to its in the depositing dust agent effect and select feasible raw material for use with the matching relationship of other component.The present invention adopts the composite product of two or more material, and preferred compound proportion is: carbohydrate: animal-plant oil: natural glue class: Mierocrystalline cellulose and derivative thereof: degradable plastics=0-10: 5-80: 1-15: 0-10: 0-8.
Tensio-active agent used in the present invention can be selected from amphoterics or the anion surfactant with emulsification function, wherein, described amphoterics can be selected from phosphatide etc., and anion surfactant can be selected from sodium stearate, sodium lauryl sulphate, sodium laurylsulfonate, linear alkylbenzene sulphonic acid, sulfated castor oil, Fatty Alcohol(C12-C14 and C12-C18), tween, this dish etc.
Be corroded in implementing the depositing dust operation for preventing or slowing down metal covering, the present invention can also comprise an amount of inhibiter, it can be selected from known hydramine phosphoric acid ester, Sodium orthomolybdate, thionamic acid etc., or other has the known inhibiter material of identical function, the consumption of inhibiter can be according to conventional criteria, and for example the concentration based on depositing dust agent emulsion is 0-2000ppm.
Depositing dust mechanism of the present invention is: utilize the adsorptivity of the chain-like structure of selected polymer substance and salt, emulsifying agent, grit is become big, even be solidified into hard shell-like structure, and then reach the purpose of depositing dust.The inventor finds in test to add the stable state maintenance before colloid helps depositing dust agent use, the interpolation of inorganic salt is except that increasing water-retentivity, also help the breakdown of emulsion after the sprinkling, easier infiltration is capped the reticulated structure that thing is formed with malleable, sprays the surface that the depositing dust agent is arranged so component of inorganic salts also can be sprayed at last.
The present invention also provides the preparation method of this depositing dust agent, can raw material be added according to working method well known to those skilled in the art and mix and make it emulsification in the entry, preferable methods is, it is even water soluble ingredient can be added in the entry thorough mixing, make the aqueous solution, add oil-soluble ingredient again and make emulsion.
The principal feature of depositing dust agent of the present invention is biodegradable, and nontoxic, no operational hazards, as spill available soap lye and clean.Use range of the present invention can be the be essential place of soil conservation of construction site, road, coal charge field, mine, park, Residential areas, plant area and.Using method comprises this depositing dust agent is sprayed at protected that desires depositing dust that according to the airborne dust situation of application places, the sprinkling amount is every square metre of protected 0.5-5 kilogram.
Specific embodiments
Specific embodiments of the present invention and effect will illustrate by following examples, but not limit practical range of the present invention with this.
Embodiment 1
Take by weighing 18 kilograms in magnesium chloride, 9.5 kilograms of sodium lauryl sulphate, 6 kilograms in molasses, 1 kilogram in gelatin, 2 kilograms of calcium lignin sulphonates are dissolved in 175 kg of water, stir, and soybean acidified oil is slowly added for 55 kilograms, and homogeneous becomes emulsion.
With the depositing dust agent emulsion that configures be sprayed on protected (for construction road, the sprinkling amount be the 2.5-3 kilogram/square metre), can reduce airborne dust about 45% in 30-60 days.
Estimate the method for dust-laying effect: same surface-area, the dust collection of oil surface is placed many places at 2 meters, tested place, regains after 24 or 96 hours and weighs.Relatively draw dust reduction rate with control group.
Embodiment 2
3 kilograms in calcium chloride, 1 kilogram of sodium stearate, 2 kilograms in dextrin (DE value 40), 5 kilograms of soluble celluloses are dissolved in 60 kg of water, stir, and other takes by weighing 20 kilograms of soybean oil, slowly adds, and homogeneous becomes emulsion.
Above-mentioned emulsion is sprayed on protected (3 kilograms/square metre are sprayed stone quarry or coal charge field), can reduces airborne dust about 51% in 30-60 days.
Embodiment 3
2 kilograms of amylopectin, 11 kilograms of carrageenins, respectively 0.8 kilogram on polysorbas20 and this dish 20, be dissolved in 130 kg of water and become the aqueous solution, mix with the polyethylene propylene acid-starch copolymer resins of 5 kilograms of pork fat and 4 kilograms, the emulsion that obtains is sprayed on the working-yard with 1.2 kilograms/square metre, can reduce airborne dust 38% in 30-60 days.
Embodiment 4
13 kilograms of sodium alginates, 1 kilogram in syrup, 60 kilograms of sewer oils (depleted edible oil miscellany), 5 kilograms of sulfated castor oils, water is made emulsion for 250 kilograms, after being sprayed on the working-yard with 1.5 kilograms/square metre, 150 kilograms of 30% calcium chloride solutions are being sprayed on it again, can reduce airborne dust about 55% in 30-60 days.
Claims (10)
1, a kind of depositing dust agent is the aqueous emulsion of the component formation of main following row weight part: the muriate of 0-50 part basic metal or alkaline-earth metal, the biodegradable composite polymer substance of 10-100 part, 0.05-15 part tensio-active agent, 10-300 part water.
2, the described depositing dust agent of claim 1, wherein, biodegradable composite polymer substance is selected from two or more in carbohydrate, animal-plant oil, natural glue class and derivative, Mierocrystalline cellulose and derivative thereof and the degradable plastics, and comprise water-soluble and oil-soluble substance simultaneously, compound proportion is: carbohydrate: animal-plant oil: the natural glue class: Mierocrystalline cellulose and derivative thereof: degradable plastics=0-10: 5-80: 1-15: 0-10: 0-8.
3, the described depositing dust agent of claim 2, wherein, carbohydrate is selected from molasses, syrup, dextrin, starch and modified starch.
4, the described depositing dust agent of claim 2, wherein, described animal-plant oil comprises animals and plants oil, oil foot or the oil foot degradation product that contains lipid acid, glycerine, acidifying oil or phosphatide.
5, the described depositing dust agent of claim 2, wherein, described natural glue class and derivative thereof comprise gelatin, gum arabic, seaweed gel, carrageenin, pectin and its esters, humic acid colloid.
6, the described depositing dust agent of claim 2, wherein, described Mierocrystalline cellulose and derivative thereof comprise chitin, soluble cellulose, xylogen, sulfonated lignin.
7, the described depositing dust agent of claim 2, wherein, described degradable plastics comprises polycaprolactone, polyethylene propylene acid polymer, poly-3-hydroxyl butyric acid, acrylic resin and polymkeric substance thereof.
8, the described depositing dust agent of claim 1, wherein, described tensio-active agent is selected from amphoterics or the anion surfactant with emulsification function.
9, the preparation method of the depositing dust agent of aforementioned any claim comprises water soluble ingredient and water thorough mixing evenly, makes the aqueous solution, adds oil-soluble ingredient again and makes emulsion.
10, the application of the described depositing dust agent of claim 1 in the operation of control airborne dust comprises this depositing dust agent is sprayed on protected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01123865 CN1224657C (en) | 2001-08-07 | 2001-08-07 | Bio-degradable dust-removing agent, its preparation and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01123865 CN1224657C (en) | 2001-08-07 | 2001-08-07 | Bio-degradable dust-removing agent, its preparation and application |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1400273A true CN1400273A (en) | 2003-03-05 |
| CN1224657C CN1224657C (en) | 2005-10-26 |
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|---|---|---|---|
| CN 01123865 Expired - Lifetime CN1224657C (en) | 2001-08-07 | 2001-08-07 | Bio-degradable dust-removing agent, its preparation and application |
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Cited By (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102295915A (en) * | 2011-09-20 | 2011-12-28 | 北京中盛益世环保科技有限公司 | Dust inhibitor |
| CN102304349A (en) * | 2011-05-18 | 2012-01-04 | 北京化工大学 | Mineral powder railway transportation dust suppressant and preparation method thereof |
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2001
- 2001-08-07 CN CN 01123865 patent/CN1224657C/en not_active Expired - Lifetime
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| CN102186943B (en) * | 2008-10-15 | 2015-04-29 | 纳尔科公司 | A composition for dust control and limiting moisture re-absorption |
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| CN102295915A (en) * | 2011-09-20 | 2011-12-28 | 北京中盛益世环保科技有限公司 | Dust inhibitor |
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| US10059635B2 (en) | 2013-11-25 | 2018-08-28 | Ecolab Usa Inc. | Composition for dust control |
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| CN104803629B (en) * | 2015-04-08 | 2017-06-16 | 北京建筑大学 | A kind of dust suppression subtracts haze asphalt and preparation method thereof |
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| CN105131623A (en) * | 2015-10-08 | 2015-12-09 | 苏州拓博琳新材料科技有限公司 | Anti-stripping agent for asphalt and preparation method and application thereof |
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| CN107986698A (en) * | 2016-10-26 | 2018-05-04 | 立邦涂料（中国）有限公司 | A kind of dry powder and mortar and its preparation method and application |
| CN106634846A (en) * | 2016-12-17 | 2017-05-10 | 北京首创北科环境科技研究院有限公司 | Pigmented sodium humate incrusting dust suppressant and preparation method thereof |
| CN106634845A (en) * | 2016-12-17 | 2017-05-10 | 北京首创北科环境科技研究院有限公司 | Humic acid incrusting dust suppressant for barren greening and preparation method thereof |
| CN106634847A (en) * | 2016-12-17 | 2017-05-10 | 北京首创北科环境科技研究院有限公司 | Humic acid crusting dust-inhibitor and preparation method thereof |
| CN108192568A (en) * | 2017-12-29 | 2018-06-22 | 北京首创博桑环境科技股份有限公司 | A kind of dust suppressant preparation method and sprinkling construction method with photocatalytic activity |
| CN108467710A (en) * | 2018-04-04 | 2018-08-31 | 夏侯文奇 | A kind of Biomimetic membranes dust inhibitor and preparation method thereof |
| CN109111899A (en) * | 2018-06-26 | 2019-01-01 | 江苏新亿源环保科技有限公司 | A kind of coal mine dedusting agent |
| CN108641680A (en) * | 2018-07-04 | 2018-10-12 | 安徽源丰农业发展有限公司 | A kind of feed processing dustfall agent and preparation method thereof |
| CN109096996A (en) * | 2018-09-29 | 2018-12-28 | 北京首创博桑环境科技股份有限公司 | A kind of coal moisturizing dust suppressant and preparation method thereof |
| CN109096996B (en) * | 2018-09-29 | 2021-06-04 | 北京首创大气环境科技股份有限公司 | Coal moisture-retention dust suppressant and preparation method thereof |
| CN109652015A (en) * | 2018-11-19 | 2019-04-19 | 北京汉唐环保科技股份有限公司 | Shellac iron ore dust suppressant |
| CN110330942A (en) * | 2019-07-19 | 2019-10-15 | 陕西科技大学 | A kind of nanometer of totally biodegradable liquid cover film and its application method |
| CN112111248A (en) * | 2020-10-29 | 2020-12-22 | 山东大学 | Antiviral soil-fixing dust suppressant and preparation method and application thereof |
| CN113480976A (en) * | 2021-08-10 | 2021-10-08 | 北京首创大气环境科技股份有限公司 | Environment-friendly crust dust suppressant for dust emission in storage yard and preparation method thereof |
| CN113528088A (en) * | 2021-08-10 | 2021-10-22 | 北京首创大气环境科技股份有限公司 | Soil raise dust environment-friendly crusting dust suppressant and preparation method thereof |
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