Cation extraction process and application thereof to aqueous...

B - Operations – Transporting – 01 – J

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B01J 20/26 (2006.01) B01D 15/00 (2006.01) B01J 39/04 (2006.01) C22B 3/00 (2006.01) G21F 9/12 (2006.01)

Patent

CA 1331226

PRECIS DE LA DIVULGATION Procédé d'extraction de cations à partir d'un effluent aqueux. On introduit dans ledit effluent une quantité efficace d'au moins un polymère ou copolymère, physiquement ou chimiquement réticulé, à base d'acide acrylique au moins partiellement salifié et/ou quaternisé ou bien un copolymère comprenant de 40 à 60% en moles d'acide acrylique, le cas échaéant au moins partiellement salifié, et de 60 à 40% en moles d'au moins un dialkylaminoalkyl acrylate dans lequel chaque groupe alkyle a de 1 à 4 atomes de carbone, le cas échéant au moins partiellement salifié ou quaternisé. Application au traitement d'effluents aqueux.

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