1986•Canadian Metallurgical QuarterlyRequires access

Control of Silica in the Bayer Process Used for Alumina Production

S. Ostap

Abstract

Silica-bearing minerals in the bauxite ore from which alumina is extracted by the Bayer process, cause problems related to process chemical losses, product purity and heat recovery. The problems are partially resolved by beneficiation of the bauxite and by process modifications to compensate for the silica level in the bauxite.

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Key concepts: Bauxite, Bayer process, Beneficiation, Process (computing), Materials science, Metallurgy, Pulp and paper industry, Environmental science