Polymers containing hydroxamic acid groups for reduction of suspended solids in bayer process streams
AssigneeAmerican Cyanamid Company
InventorsDonald P. Spitzer, Wei S. Yen
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Abstract
The suspended solids content of Bayer process streams is reduced by contacting said stream with a polymer which contains hydroxamic acid groups.
Claims18
A process for removing suspended solids from the Bayer alumina process, the improvement comprising contacting and efficiently mixing a Bayer process stream with a water-soluble polymer containing pendant hydroxamic acid or salt groups in an amount effective to flocculate and settle the suspended solids therein, said polymer having a molecular weight ranging from about 1.times.10.sup.4 to about 3.times.10.sup.7 and removing flocculated and settled suspended solids from said process stream.
Dependencies are inferred from the claim text.