Preparation technology of painting mist coagulant

A paint mist coagulant and preparation technology, applied in flocculation/sedimentation water/sewage treatment, natural water treatment, water/sludge/sewage treatment, etc., can solve unsatisfactory effect, high treatment cost, poor cohesion, etc. problems, achieve the effect of improving coagulation performance and separation of paint slag, reducing interfacial free energy, and changing surface properties

Inactive Publication Date: 2019-04-16
江苏二九建筑装饰工程有限公司
View PDF7 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the effect of most paint mist coagulants currently used is not ideal, either because of poor cohesion or too much sediment, and the treatment cost is high

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] The present invention will be further explained below in conjunction with embodiment.

[0017] A kind of preparation technology of paint mist coagulant, the preparation technology of described paint mist coagulant comprises the following steps:

[0018] (1) Preparation of anti-viscosity agent

[0019] (1) Hydroxymethylation stage: Add deionized water into a 500mL beaker, then add melamine and formaldehyde in sequence, adjust the pH value to 8-9 with triethylamine, and stir and react at 60-80°C for 30-60min;

[0020] (2) Condensation stage: use 50% sulfuric acid to adjust the pH value of the solution to 3-5, stir and react at 60-80°C for 1-3h, and obtain a transparent liquid, which is the viscosifying agent;

[0021] (2) Preparation of paint mist coagulant

[0022] Add 300mL of water into a 500mL beaker, add cationic polyacrylamide under high-speed stirring, stir and dissolve for a certain period of time, add modifier and anti-viscosity agent, and continue stirring for...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a preparation technology of a painting mist coagulant. The technology comprises the following steps of (1) preparation of an adhesive elimination agent, and preparation includes the hydroxymethylation stage and the condensation stage, wherein at the hydroxymethylation stage, deionized water is added to a 500-mL beaker, then melamine and formaldehyde are added in sequence, the pH value is adjusted to 8-9 with triethylamine, and a stirring reaction is conducted for 30-60 min at 60-80 DEG C; at the condensation stage, the pH value of the solution is adjusted to 3-5 with 50% sulfuric acid, a stirring reaction is conducted for 1-3 h at 60-80 DEG C, and transparent liquid, namely the adhesive elimination agent is prepared; (2) preparation of the painting mist coagulant, wherein 300 mL of water is added to the 500-mL beaker, cationic polyacrylamide is added under high-speed stirring, after stirring and dissolution are conducted for certain time, a modification agent and the adhesive elimination agent are added, stirring continues for 0.5 h, and a sticky transparent solution, namely the painting mist coagulant is obtained. According to the preparation technology ofthe painting mist coagulant, through the cooperation effect of all the components, the flocculation performance and paint residue separation effect of the painting mist coagulant are obviously improved, and the aim of removing over-sprayed oil paint in oil paint wastewater is achieved.

Description

technical field [0001] The invention relates to the technical field of environmental protection, in particular to a preparation process of a paint mist coagulant. Background technique [0002] With the development of modern coating technology, the amount of spraying is increasing day by day, usually there will be a lot of paint that cannot be applied to the workpiece and become "overspray" paint, and the amount of overspray reaches 25%-60%. These paints contain a large amount of volatile organic solvents that are not conducive to human health, seriously pollute the surrounding environment and air, and need to be cleaned up in time. Paint falls on the ground and is difficult to clean up, and often enters the circulating water. The organic solvent is taken out of the outdoor due to the water circulation of the indoor sink and the outdoor sink, reducing the damage to the health of the workers. The "overspray" paint itself adheres to the walls of the tank, pipes and water pump...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/56C02F103/34
CPCC02F1/56C02F2103/34
Inventor 单志峰
Owner 江苏二九建筑装饰工程有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap