Brine treatment using ethylene/carboxylic acid polymers

B - Operations – Transporting – 01 – J

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B01J 39/18 (2006.01) C01D 3/14 (2006.01) C01D 3/16 (2006.01) C01D 15/04 (2006.01) C01F 7/00 (2006.01) C01F 11/00 (2006.01) C01G 3/00 (2006.01) C01G 9/00 (2006.01) C01G 21/00 (2006.01) C01G 37/00 (2006.01) C01G 49/00 (2006.01) C01G 53/00 (2006.01) C02F 1/68 (2006.01)

Patent

CA 1284844

ABSTRACT Hardness values (Ca++ and Mg++) and other polyvalent metal cations are removed from alkali metal brines (esp. NaC1) by using a high surface area ethyl_ ene/carboxylic acid polymer (esp. porous ethylene/ acrylic acid copolymers).

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