A kind of process method of using special acrylate wastewater to prepare color fixing agent

Abstract

The invention discloses a process for preparing a color-fixing agent by using special acrylate waste water. The waste liquid produced by synthesizing specific acrylate is used as a raw material, and the monomeric acrylic acid and acrylate in the waste liquid are reused. The waste liquid, The dimethyl diallyl ammonium chloride, initiator, and chain transfer agent are mixed to prepare a color-fixing agent, especially a cationic polymer-type color-fixing agent, which realizes deep resource utilization of wastewater and near-zero discharge, creating A new industrial output has been achieved, and after comparing the prepared color fixing agent with other similar products on the market, the color fastness of the fabric after treatment with the color fixing agent has reached the national standard level 4 or above, and the effect of use is not inferior to similar products. products, even better than similar products.

Description

technical field [0001] The invention relates to the field of chemical waste liquid treatment, in particular to a process method for preparing a color-fixing agent by using special acrylate waste water. Background technique [0002] Fixing agent is one of the important auxiliary agents in the printing and dyeing industry. It can improve the color fastness of dyes on fabrics to wet treatment. It can form insoluble colored matter with dyes on fabrics to improve the color fastness to washing and perspiration, and sometimes to improve its light fastness. Color-fixing agents can be roughly divided into cationic polymer-type color-fixing agents, ester-type color-fixing agents (including formaldehyde ester-type color-fixing agents, including polyamine ester-type color-fixing agents), and cross-linking reaction-type color-fixing agents. [0003] In the process of using acrylic acid and other alcohol raw materials to prepare polyol acrylates, waste liquids containing acrylic acid and...

AI Technical Summary

Problems solved by technology

The treatment methods commonly used at home and abroad all use the incineration method. Since the waste water cannot be directly burned, heavy oil needs to be added to support the combustion. The treatment cost per ton is about 7,000 yuan. Although the catalytic oxidation method can effectively decompose the pollutants, the key lies in the catalyst. , strong specificity, high restrictions on water inlet conditions, currently only a few acrylic acid manufacturers adopt this method, in addition, catalytic wet oxidation method requires high temperature and high pressure conditions for wastewater treatment, and there are also potential safety hazards

However, its anaerobic method, aerobic method, Fenton reagent oxidation method, ion exchange fiber method, etc. are still in the theoretical research stage, and there are still many technical problems that have not been effectively overcome and cannot be promoted.

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