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Paint sewage coagulation treatment agent and application thereof

A technology of coagulation treatment and coagulation agent, applied in the field of paint sewage coagulation treatment agent, can solve the problems of poor de-sticking performance and slow de-sticking speed, and achieve the effects of less sticky walls, simple operation and simple preparation process.

Inactive Publication Date: 2018-06-22
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing paint mist coagulant has the disadvantages of poor detackification performance and slow detackification speed. Therefore, it is of great significance to propose a new coagulant formula or modification method for the sewage treatment of the spraying industry

Method used

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  • Paint sewage coagulation treatment agent and application thereof
  • Paint sewage coagulation treatment agent and application thereof
  • Paint sewage coagulation treatment agent and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Add 200mL of water into a 500mL beaker, heat it in a water bath to 60°C, add ethylenediamine and formaldehyde into the water at a mass ratio of 1:1, stir to fully dissolve, then add 1g of sodium hydroxide to adjust the pH of the reaction system to 8, after 0.5 hours of reaction, adjust the pH value of the reaction system to 4, continue the reaction for 2 hours, then adjust the temperature to 70°C, add 0.5g of ammonium chloride, 0.2g of hexamethylenetetramine, and keep this temperature to continue the reaction for 1.5 Hours, viscosifying agent A was obtained.

[0027] Add anionic polyacrylamide to water and stir at room temperature for 2 hours to prepare a solution with a mass concentration of 0.1% and denote it as B 1 Add polydimethylsiloxane into water and stir at room temperature to form a solution with a mass concentration of 2%, and the obtained solution is denoted as B 2 ; Finally put B 2 Solution and B 1 Coagulant B can be obtained by compounding the solution a...

Embodiment 2

[0030] Add 200mL of water into a 500mL beaker, heat it in a water bath to 70°C, add melamine and formaldehyde into the water at a mass ratio of 1:2, stir to fully dissolve, then add 1g of sodium hydroxide, and adjust the pH of the reaction system to 8 After reacting for 0.5 hours, adjust the pH value of the reaction system to 4, continue the reaction for 2 hours, adjust the temperature to 70°C, add 0.5g of ammonium chloride, 0.2g of hexamethylenetetramine, and keep the temperature for 1.5 hours, That is, the viscosifying agent A is obtained.

[0031] Add anionic polyacrylamide to water and stir at room temperature for 2 hours to prepare a solution with a mass concentration of 0.1% and denote it as B 1 Add polydimethylsiloxane into water and stir at room temperature to form a solution with a mass concentration of 2%, and the obtained solution is denoted as B 2 ; Finally put B 2 Solution and B 1 Coagulant B can be obtained by compounding the solution at a volume ratio of 1:10...

Embodiment 3

[0034] Add 200mL of water into a 500mL beaker, heat the water bath to 80°C, add urea and formaldehyde into the water at a mass ratio of 1:3, stir to fully dissolve, then add 1g of sodium hydroxide, and adjust the pH of the reaction system to 8 After reacting for 0.5 hours, adjust the pH value of the reaction system to 4, continue the reaction for 2 hours, adjust the temperature to 70°C, add 0.5g of ammonium chloride, 0.2g of hexamethylenetetramine, and keep the temperature for 1.5 hours, That is, the viscosifying agent A is obtained.

[0035] Add anionic polyacrylamide to water and stir at room temperature for 2 hours to prepare a solution with a mass concentration of 0.1% and denote it as B 1 Add polydimethylsiloxane into water and stir at room temperature to form a solution with a mass concentration of 2%, and the obtained solution is denoted as B 2 ; Finally put B 2 Solution and B 1 Coagulant B can be obtained by compounding the solution at a volume ratio of 1:10.

[00...

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Abstract

The invention provides a paint sewage coagulation treatment agent and application thereof. The paint sewage coagulation treatment agent is prepared from an adhesion eliminating agent A and a coagulation agent B, wherein the adhesion eliminating agent A is a polymer obtained by taking an organic compound containing an amino group and aldehydes to react; the coagulation agent B is a mixture of an amide polymer with the relative molecular weight of 10 to 14 million, and a compound, wherein the compound is one or a mixture of more than two of isobutyltriethoxysilane, 3-methacryloxymethyltris(trimethylsiloxy)silane and polydimethylsiloxane. The paint sewage coagulation treatment agent provided by the invention has efficient adhesion eliminating and coagulation effects on paint and has high paint mist treatment efficiency; the paint sewage coagulation treatment agent has the advantages of wide raw material source, low price, small dosage and remarkable cost performance advantage.

Description

technical field [0001] The invention relates to the field of industrial sewage coagulation agents, in particular to a paint sewage coagulation treatment agent and application thereof. Background technique [0002] Cars, furniture, appliances, metal parts and plastics are all finished with paint for visual effect, function and protection. Most modern paint coating operations use spraying technology. In order to obtain the desired product effect during the spraying process, it is usually oversprayed, and 20%-60% of the paint cannot be attached to the product and is scattered in the spraying room. In order to maintain a normal working environment on site and protect the health of the staff, a wet paint mist removal system is often used to remove excess paint using water. The paint taken away by the circulating water has strong adhesion and will adhere to equipment such as pipes, water pumps and fan blades, and block nozzles and other equipment. Long-term accumulation will lead...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/56C02F103/34
CPCC02F1/56C02F2103/34
Inventor 曾德芳潘能志
Owner WUHAN UNIV OF TECH
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