Novel synthetic process for hydrophobic polymeric flocculant

Abstract

The invention discloses a novel synthetic process for a hydrophobic polymeric flocculant. The synthetic process comprises the following steps: sequentially dissolving methyl methacrylate, acrylamide, acrylic acid, dimethyldiallylammonium chloride, sodium hydroxide and urea in pure water, wherein the usage amount of urea is 6%; adding sodium sulfite, a foaming agent and ammonium persulfate; neutralizing acrylic acid, and carrying out uniform mixing under stirring; taking out the polymer after allowing the mixture to stand, and performing purification; subjecting the polymer to drying and performing grinding so as to obtain the hydrophobic polymeric flocculant. The synthetic process provided by the invention can successfully synthesize the hydrophobic polymeric flocculant, and has the advantages of simple process, low required raw material and labor costs, and short synthesizing time; meanwhile, the synthesized hydrophobic polymeric flocculant has excellent instant solubility and storage stability, and is free of phenomenons of thinning due to long-time preservation, microgel formation, phase separation appearing and white precipitate generation; and through the addition of urea and controlling of the usage amount of urea in the process of synthesis, flocculation effect of the synthesized hydrophobic polymeric flocculant is improved.

Description

technical field [0001] The invention belongs to the technical field of chemical synthesis, and in particular relates to a novel synthesis process of a hydrophobic polymer flocculant. Background technique [0002] Organic flocculants can be divided into anionic polyacrylamide, cationic polyacrylamide, nonionic polyacrylamide, and amphoteric polyacrylamide according to the charge properties of the charged groups of polymerized monomers. There are two types of artificially synthesized and natural polymer flocculants. This invention focuses on the study of the hydrophobic effect of flocculants. In the current synthetic process of hydrophobic flocculant, the process is not easy to implement, the resulting hydrophobic flocculant has low purity, poor hydrophobicity, low single-pass conversion rate of reactants, complicated production process, low production efficiency and high cost. , not suitable for mass production. Contents of the invention [0003] In order to overcome ...

AI Technical Summary

Problems solved by technology

In the current synthetic process of hydrophobic flocculant, the process is not easy to implement, the resulting hydrophobic flocculant has low purity, poor hydrophobicity, low single-pass conversion rate of reactants, complex production process, low production efficiency and high cost. , not suitable for mass production