Process for manufacture of cationic starch derivatives using...

Details Process for manufacture of cationic starch derivatives using... Process for manufacture of cationic starch derivatives using...

C - Chemistry, Metallurgy

08

B

C08B 31/00 (2006.01) C08B 31/12 (2006.01) C08B 33/00 (2006.01)

Patent

CA 2082702

ABSTRACT This invention is directed to an improvement in the manufacture of dry non-gelatinized cationic quaternary amine starch derivatives. An alkaline solution having a concentration up to 50% is reacted in-line with a quaternary amine/epihalohydrin condensate to form the epoxide reaction product immediately before addition to a starch slurry. After formation the epoxide is introduced into a starch slurry for the formation of the starch derivative. The reaction of the quaternary amine/epihalohydrin condensate with alkali out of presence of the starch slurry permits the use of the higher concentration of alkaline solution over known methods, allowing more kettle volume for starch and greater efficiency of production.

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