Method for purifying aqueous acrylamide solution

Details Method for purifying aqueous acrylamide solution Method for purifying aqueous acrylamide solution

1985-11-18

1987-10-20

Warren, Charles F.

Organic compounds -- part of the class 532-570 series

Organic compounds

Amino nitrogen containing

435129, 564128, 564206, C07C10208, C12P 1302

Patent

active

047015586

ABSTRACT:
A method for purifying an aqueous acrylamide solution by using activated carbon is disclosed. The method comprises contacting activated carbon with water having oxygen dissolved therein until the dissolved oxygen concentration in water after the contact increases to at least 0.5 ppm, and then contacting the aqueous acrylamide solution with the thus treated activated carbon. The method can prevent polymerization of acrylamide around activated carbon, and the resulting purified aqueous acrylamide solution requires no further purification, such as ion-exchanging.

REFERENCES:
patent: 3923741 (1975-12-01), Asano et al.
patent: 3941837 (1976-03-01), Asano et al.
patent: 4001081 (1977-01-01), Commeyras et al.
patent: 4248968 (1981-02-01), Watanabe et al.

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