Carboxylated cellulose ion-exchange materials

Details Carboxylated cellulose ion-exchange materials Carboxylated cellulose ion-exchange materials

1979-10-10

1981-04-07

Griffin, Ronald W.

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

Organic compounds

Carbohydrates or derivatives

2105001, 210688, 424141, 424294, 521 25, 521 27, 521 28, 521 30, B01D 3900, B01J 3900, C02F 142, C08B 312

Patent

active

042607400

ABSTRACT:
A process for preparing a carboxylated cellulose ion exchange material which comprises heating a mixture of cellulose and citric, isocitric or aconitic acid at a temperature of from about 100.degree. to 160.degree. C. while removing water, and then treating the product with aqueous alkali at a pH of 8 to 11 to hydrolyze cross-linked acid residues; carboxylated cellulose ion exchange materials prepared by the process and their use in removing heavy-metal ions from aqueous solutions such as in industrial effluent treatment and precious metal recovery.

REFERENCES:
patent: 2759787 (1956-08-01), Touey et al.
patent: 3573277 (1971-03-01), Grant
D. D. Gagliardi et al., American Dyestuff Reporter, Apr. 15, 1963, pp. 74-77.

Affiliated with

Also associated with

Rating

Carboxylated cellulose ion-exchange materials does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Carboxylated cellulose ion-exchange materials, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Carboxylated cellulose ion-exchange materials will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-289842