Starch type dust suppressant and preparation method thereof

A technology of dust suppressant and starch, which is applied in the direction of chemical instruments and methods, and other chemical processes, can solve the problems that the dust suppression effect of dust suppressant needs to be improved, and achieve the effect of significant dust suppression effect, high viscosity and simple process

Active Publication Date: 2017-06-13
鄂尔多斯市贺泰汽车运输有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The dust suppression effect of the existing dust suppressant needs to be improved

Method used

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  • Starch type dust suppressant and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Neutralize 18mL of acrylic acid with 30% NaOH solution to a neutralization degree of 70%, and set aside. Another 7.00 g of polyvinyl alcohol with an alcoholysis degree of 70% was placed in a 500 mL beaker, 150 mL of deionized water was added, and heated to 85° C. to completely dissolve it. After cooling down to room temperature, add the above-mentioned acrylic acid with a neutralization degree of 70%, and then sequentially add 2.00 g of cornstarch and 0.35% (accounting for the total mass percentage) of potassium persulfate, stir and mix well, and stir in a water bath at 65°C for 80 minutes. Cool to room temperature to obtain a modified starch solution.

[0032] Boil tap water for 20 minutes to obtain sterile water. Take 100mL of sterile water and place it in a 250mL conical flask that has been sterilized at high temperature, then add 5.00g of glucose, 0.23g of sodium glutamate, and 0.20g of chlorella powder, and use gauze seal. Cultivate at room temperature for 7 days...

Embodiment 2

[0043] Neutralize 18mL of acrylic acid with 30% KOH solution to a neutralization degree of 75%, and set aside. Another 7.00 g of polyvinyl alcohol with an alcoholysis degree of 98% was placed in a 500 mL beaker, 150 mL of deionized water was added, and heated to 85° C. to completely dissolve it. After cooling down to room temperature, add the above-mentioned acrylic acid with a neutralization degree of 75%, then sequentially add 2.00 g of tapioca starch and 0.30% (accounting for the total mass percentage) of ammonium persulfate, stir and mix, and stir in a water bath at 70°C for 60 min. Cool to room temperature to obtain a modified starch solution.

[0044] Boil tap water for 20 minutes to obtain sterile water. Take 100 mL of sterile water and place it in a 250 mL conical flask that has been sterilized at high temperature, then add 5.00 g of sucrose, 2.00 g of sodium glutamate, and 0.20 g of chlorella powder. seal. Cultivate at room temperature for 5 days. During the cultiva...

Embodiment 3

[0046]9 mL of acrylic acid was neutralized with a 30% NaOH solution to a neutralization degree of 85%, and set aside. Another 7.00 g of polyvinyl alcohol with an alcoholysis degree of 85% was placed in a 500 mL beaker, 150 mL of deionized water was added, and heated to 85° C. to completely dissolve it. After cooling down to room temperature, add the above-mentioned acrylic acid with a neutralization degree of 85%, then sequentially add 2.00 g of wheat starch and 0.35% (accounting for the total mass percentage) of potassium persulfate, stir and mix, and stir in a water bath at 60°C for 100 min. Cool to room temperature to obtain a modified starch solution.

[0047] Boil tap water for 20 minutes to obtain sterile water. Take 100mL of sterile water and place it in a 250mL conical flask that has been sterilized at high temperature, then add 5.00g of maltose, 0.23g of sodium glutamate, and 0.20g of chlorella powder. seal. Cultivate at room temperature for 10 days. During the cult...

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Abstract

The invention relates to a preparation method of a starch type dust suppressant. The preparation method comprises the following steps of mixing soluble saccharide, amino acid or amino acid salt, chlorella powder and water, and culturing for 5 to 30 days at the temperature of 12 to 30 DEG C, so as to obtain a dispersing liquid; adding the dispersing liquid into a modified starch water solution, and uniformly mixing, so as to obtain the starch type dust suppressant, wherein the starch type dust suppressant is formed by grafting and copolymerizing starch, polyvinyl alcohol and acrylic acid. The invention also provides the starch type dust suppressant prepared by the preparation method. The preparation method has the characteristics that the starch is grafted with two monomers of polyvinyl alcohol and acrylic acid, so that the prepared modified starch has the advantages of large viscosity, good water solubility, stable physical and chemical properties and the like; by adding the dispersing liquid containing chlorella component, the dust suppressing effect of the dust suppressant is obviously improved.

Description

technical field [0001] The invention relates to the fields of dust suppressant preparation technology and environmental protection, in particular to a starch dust suppressant and a preparation method thereof. Background technique [0002] In recent years, coal has taken up a major proportion of the fuel used in China's thermal power plants. Coal dust is one of the main air pollution dust sources of coal production and use enterprises and mining cities, and it is also one of the important reasons for coal loss and dust pollution to the surrounding environment of railways during coal transportation such as railways. Therefore, taking coal dust control measures is not only the main measure for coal production and use enterprises to reduce pollution and safe production, but also an important measure to save resources and protect the environment. [0003] At present, the method of sprinkling water is generally used to suppress coal dust. The function of sprinkling water to supp...

Claims

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Application Information

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IPC IPC(8): C09K3/22C08G81/02C08F251/00C08F220/06
CPCC08F251/00C08G81/021C09K3/22C08F220/06
Inventor 祯茂志基
Owner 鄂尔多斯市贺泰汽车运输有限责任公司
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