Weakly basic anion exchangers, processes for their...

Details Weakly basic anion exchangers, processes for their... Weakly basic anion exchangers, processes for their...

C - Chemistry, Metallurgy

08

F

C08F 120/56 (2006.01) B01J 41/04 (2006.01) B01J 41/14 (2006.01) C02F 1/42 (2006.01) C08F 8/32 (2006.01)

Patent

CA 2076429

Weakly basic anion exchangers, processes for their preparation by aminolysis and their use for removing sulphate ions from aqueous liquids A b s t r a c t Weakly basic anion exchangers of the poly(meth)- acrylamide type which have been prepared by aminolysis of poly(meth)acrylonitrile or poly(meth)acrylate with polyamines of defined composition have an improved absorption capacity for sulphate ions and are suitable for selectively removing sulphate ions from aqueous liquids, in particular from sodium chloride brine and from waste waters.

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