Process for producing acrylamide-type cationic polymeric...

Details Process for producing acrylamide-type cationic polymeric... Process for producing acrylamide-type cationic polymeric...

C - Chemistry, Metallurgy

08

F

402/524

C08F 20/56 (2006.01)

Patent

CA 1223700

- 1 - TITLE OF THE INVENTION PROCESS FOR PRODUCING ACRYLAMIDE-TYPE CATIONIC POLYMERIC FLOCCULANT ABSTRACT OF THE DISCLOSURE Polyacrylamide useful as a high-molecular-weight, well water-soluble flocculant, especially cationic polymeric flocculant, is produced by rendering crude acrylamide substantially free from N-acryloyl acrylamide, said crude acrylamide being obtained by catalytic hydration of acrylonitrile with water in the presence of a metallic copper catalyst at a pH in the range of from 4 to 10, and then polymerizing the acrylamide.

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