Process for synthesizing organic polymer flocculant by controlling concentration of hydrochloric acid

Abstract

The invention discloses a process for synthesizing an organic polymer flocculant. The process comprises the following steps: (a) measuring certain quantities of polyacrylamide, formaldehyde, dimethylamine and hydrochloric acid for later use, wherein in percentage by mass, the hydrochloric acid accounts for 1.0 percent of the total mass; (b) placing the formaldehyde in a reaction container; (c) slowly adding the polyacrylamide and a catalyst into the reaction container and stirring with adding; (d) then placing the reaction container into water bath to heat; (e) next, adding the dimethylamine into the reaction container; (f) cooling and then adding the hydrochloric acid to carry out quaternization; (g) finally, obtaining the target product by carrying out evaporation concentration and filtration. According to the invention, the qualified organic polymer flocculant can be successfully synthesized; the synthesis process is simple; the synthesis conversion rate is high; the process is convenient for workers to operate; synthesis cost of the organic polymer flocculant is greatly reduced; in the synthesizing process, by controlling the concentration of the hydrochloric acid, reaction efficiency and product performance are further improved.

Description

technical field [0001] The invention relates to a synthesis process of an organic polymer flocculant for controlling the concentration of hydrochloric acid. Background technique [0002] According to its chemical composition, flocculants can be generally divided into two types: inorganic flocculants and organic flocculants. Inorganic flocculants include inorganic coagulants and inorganic polymer flocculants; organic flocculants include synthetic organic polymer flocculants, natural organic polymer flocculants and microbial flocculants. [0003] Organic macromolecular flocculants appeared in the 1950s, they have broad application prospects and develop very rapidly. It has been used in water purification, water / oil system demulsification, oily wastewater treatment, wastewater recycling and sludge dehydration, etc.; it can also be used as a mud treatment agent, selective water blocking agent, and water injection thickener in the oilfield development process , softener in text...

AI Technical Summary

Problems solved by technology

Inorganic flocculants are cheap, but they will have adverse effects on human health and the ecological environment; although organic polymer flocculants are used in a small amount, the scum output is small, the flocculation ability is strong, the flocs are easy to separate, and the effect of removing oil and suspended matter is good , but the residual monomers of this type of polymer have "three-caused" effects (causation, carcinogenicity, and mutagenesis), thus limiting its application range; microbial flocculants are easy to use and have a promising application prospect because of the absence of secondary pollution seductive