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Methods for producing alumina from clay :an evaluation of five hydrochloric acid processes

Review of major proposed processes for recovering manganese from United States resources (in three parts).

Methods for producing alumina from clay :an evaluation of the sulfurous acid-caustic purification process

Methods for producing alumina from clay :an evaluation of three sulfuric acid processes

Review of major proposed processes for recovering manganese from United States resources (in three parts).

Methods for producing alumina from clay :an evaluation of a nitric acid process

Methods for producing alumina from clay :an evaluation of two ammonium alum processes

A cost estimate of the Bayer process for producing alumina

Methods for producing alumina from clay :an evaluation of a lime-soda sinter process

Review of major proposed processes for recovering manganese from United States resources (in three parts).

An Evaluation of an ammonium sulfate leaching process for recovering manganese from Minnesota and Maine resources


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