Purification of effluent from wood pulp bleach plant

C - Chemistry – Metallurgy – 02 – F

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C02F 1/28 (2006.01) B01D 15/00 (2006.01) B01J 20/26 (2006.01) C08F 212/36 (2006.01) D21C 11/00 (2006.01)

Patent

CA 1320911

ABSTRACT A process for purifying a waste effluent from the bleaching of wood pulp by contacting the effluent with an adsorbent resin, wherein the adsorbent resin is a macroporous copolymer being post-crosslinked in a swollen state in the presence of a Friedel-Crafts catalyst and functionalized with hydrophilic groups prior to contact with the waste effluent. -F 35,846B

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