Use of copolymers for reducing precipitates and deposits...

Details Use of copolymers for reducing precipitates and deposits... Use of copolymers for reducing precipitates and deposits...

C - Chemistry, Metallurgy

08

F

C08F 220/00 (2006.01)

Patent

CA 2561407

The invention relates to the use of water-soluble copolymers, formed from monoethylenically-unsaturated monomers, comprising acid groups (a) and at least one unsaturated double-bond containing hydrophobic component (b) in the Bayer process liquors as means for reducing precipitates and deposit formations arising from inorganic and organic impurities.

L'invention concerne l'utilisation de produits de copolymérisation hydrosolubles, formés de monomères a) portant des groupes acides monoéthyléniquement insaturés, et d'au moins un composant b) hydrophobe contenant des doubles liaisons insaturées dans les lessives du procédé Bayer, en tant qu'agents servant à réduire des précipitations et des dépôts dus à des impuretés inorganiques et organiques.

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