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Method for preparing efficient biodegradable sand-fixation dust suppressant

A biodegradable, dust suppressant technology, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of poor dust suppressant atomization, high viscosity, inability to wet dust, etc., and achieve good dust suppression effect. Effect

Inactive Publication Date: 2016-11-09
仇颖超
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention: Aiming at the problem that most of the currently commercially available dust suppressants have high viscosity, which makes the atomization effect of the dust suppressant not good or even difficult to atomize, and cannot quickly wet the dust, the present invention provides a high-efficiency Preparation method of biodegradable sand-fixing and dust-suppressing agent

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0019] Weigh 100g of corncobs, air-dry them naturally, put them in a pulverizer, and pass them through a 100-mesh sieve. Weigh 30g of sieved corncob powder, add them to 600mL of 15% sodium hydroxide solution, and place them in a constant temperature water bath at 50°C. , soaked for 20 hours, and then adjusted the pH to neutral with 10% hydrochloric acid to obtain a mixed solution. The mixed solution was suction-filtered, and the filter cake was washed with deionized water for 3 times. dry to constant weight to obtain alkali-treated corncob powder; weigh 3.5g sodium dodecylbenzenesulfonate and 1.0g alkylphenol polyoxyethylene ether, add 50mL deionized water, stir at 300r / min for 15min, add 3.5g butyl acrylate, 1.5g methyl methacrylate, 2g acrylamide, and continue to stir until the white uniform non-layered emulsion is obtained to obtain a monomer pre-emulsion; weigh 5g of the above-mentioned alkali-treated corncob powder, and put it into a three-necked flask , add 30mL of deion...

example 2

[0022] Weigh 150g of corncobs, air-dry them naturally, put them in a pulverizer, and pass them through a 100-mesh sieve. Weigh 40g of sieved corncob powder, add them to 800mL of 15% sodium hydroxide solution, and place them in a constant temperature water bath at 55°C. , soaked for 22 hours, and then adjusted the pH to neutral with 10% hydrochloric acid to obtain a mixed solution. The mixed solution was suction-filtered, and the filter cake was washed with deionized water for 4 times. dry to constant weight to obtain alkali-treated corncob powder; weigh 3.8g sodium dodecylbenzenesulfonate and 1.2g alkylphenol polyoxyethylene ether, add 55mL deionized water, stir at 350r / min for 18min, add 5.0g butyl acrylate, 2.0g methyl methacrylate, 3g acrylamide, and continue to stir until the white uniform non-layered emulsion is obtained to obtain a monomer pre-emulsion; weigh 5.5g of the above-mentioned alkali-treated corn cob powder, and put it into a three-necked flask Add 35mL deioniz...

example 3

[0025] Weigh 200g of corncobs, air-dry them naturally, put them in a pulverizer, and pass them through a 100-mesh sieve. Weigh 50g of sieved corncob powder, add them to 1000mL of 15% sodium hydroxide solution, and place them in a constant temperature water bath at 60°C. , soaked for 24 hours, and then adjusted the pH to neutral with 10% hydrochloric acid to obtain a mixed solution. The mixed solution was suction-filtered, and the filter cake was washed with deionized water for 5 times. and dry to constant weight to obtain alkali-treated corn cob powder; weigh 4.0g sodium dodecylbenzenesulfonate and 1.5g alkylphenol polyoxyethylene ether, add 60mL deionized water, stir at 400r / min for 20min, add 7.0g butyl acrylate, 3.0g methyl methacrylate, 4g acrylamide, and continue to stir until the white uniform non-layered emulsion is obtained to obtain a monomer pre-emulsion; weigh 6g of the above-mentioned alkali-treated corncob powder, and put it into a three-necked flask , add 40mL of...

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Abstract

The invention relates to a method for preparing an efficient biodegradable sand-fixation dust suppressant and belongs to the technical field of dust suppressants. The method for preparing the efficient biodegradable sand-fixation dust suppressant, provided by the invention, is used for solving the problem of dust suppressants on the market at present that the majority of the dust suppressants are high in viscosity, thus the dust suppressants are poor in atomization effect and even difficult in atomization, and dust cannot be rapidly wetted. According to the method, the efficient biodegradable sand-fixation dust suppressant is prepared through modifying degradable, non-toxic and pollution-free corncobs, which serve as a raw material, by a pre-emulsifying process of emulsion polymerization so as to prepare an alkali-treated corncob powder grafted acrylate emulsion, then, compounding the alkali-treated corncob powder grafted acrylate emulsion with polyethylene glycol octylphenyl ether with efficient wetting property, and carrying out water dilution. The efficient biodegradable sand-fixation dust suppressant prepared by the method can be used for rapidly wetting the dust and coagulating small granular rice coal into large granules, thereby having a good dust suppression effect.

Description

technical field [0001] The invention relates to a preparation method of a high-efficiency biodegradable sand-fixing and dust-suppressing agent, which belongs to the technical field of dust-suppressing agents. Background technique [0002] my country's regional atmospheric environmental problems characterized by inhalable particulate matter (PM10) and fine particulate matter (PM2.5) have become increasingly prominent. Dust can be divided into two types according to particle size: those with large diameters are called falling dust, and those with large diameters are easy to settle, and those with large diameters are easy to settle. The small ones are called floating dust, which float in the air for a long time in the form of aerosols and cannot be seen by naked eyes. Dust contains a variety of heavy metals, and the floating dust can absorb various toxic substances, some of which are carcinogens. Flying dust adsorbed with toxic substances floats everywhere, seriously polluting ...

Claims

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Application Information

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IPC IPC(8): C09K3/22
CPCC09K3/22
Inventor 仇颖超宋豪
Owner 仇颖超
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