Liquid purification or separation – Processes – Ion exchange or selective sorption
Patent
1994-07-19
1995-08-15
Zitomer, Fred
Liquid purification or separation
Processes
Ion exchange or selective sorption
210660, 210681, 521 32, 525381, 525382, C02F 142, B01J 4104, B01J 4112, C08F 832
Patent
active
054416469
ABSTRACT:
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.
REFERENCES:
patent: 2582194 (1952-01-01), Dudley
patent: 2675359 (1954-04-01), Schneider
patent: 3842002 (1974-10-01), Boari
patent: 4556463 (1985-12-01), Minz
J. Seidl, Macroporous styrene/divinylbenzene copolymers and their use in chromatography and for preparing ion exchangers, Table of Contents. 1967.
Heller Harold
Hoffmann Heiko
Klipper Reinhold M.
Minz Franz-Rudolf
Mitschker Alfred
Bayer Aktiengesellschaft
Zitomer Fred
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