Process for purifying bayer process streams

Details Process for purifying bayer process streams Process for purifying bayer process streams

C - Chemistry, Metallurgy

01

F

C01F 7/47 (2006.01) B01D 21/01 (2006.01) C01G 49/00 (2006.01)

Patent

CA 2366450

A process for reducing the level of colloidal iron in a Bayer process stream comprises intermixing an amidoxime polymer with a Bayer process stream and separating the resultant polymer-iron complex to provide purified sodium aluminate solution.

L'invention concerne un procédé permettant de réduire le niveau du fer colloïdal dans un flux du procédé Bayer. Le procédé consiste à mélanger un polymère amidoxime au flux du procédé Bayer et à séparer le complexe polymère-fer résultant afin de présenter une solution d'aluminate de sodium purifiée.

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