Liquid purification or separation – Processes – Making an insoluble substance or accreting suspended...
Patent
1987-06-05
1989-02-07
Henderson, Christopher
Liquid purification or separation
Processes
Making an insoluble substance or accreting suspended...
210734, 210735, 526263, B01D 1705
Patent
active
048029920
ABSTRACT:
The present invention provides the methyl chloride and dimethyl surfate quaternary ammonium salts of 1-acryloyl-4-methyl piperazine, their homopolymers and copolymers, and water clarification processes in which is used polymers of 1-acryloyl-4-methyl piperazine.
REFERENCES:
patent: 4515658 (1985-05-01), Fong
patent: 4604213 (1986-08-01), Fong
Fong Dodd W.
Halverson Ann M.
Epple Donald G.
Henderson Christopher
Nalco Chemical Company
Norek Joan I.
Premo John G.
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