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Process for the manufacture of sulfuric acid by means of alkali sulphates and bisulphates of industrial origin or contained in natural rocks of complex composition (glauberite, alunite, etc.) with the production of caustic alkalis or of alkali salts, of sulphate of alumina or purified alumina
Process for the manufacture of sulfuric acid by means of alkali sulphates and bisulphates of industrial origin or contained in natural rocks of complex composition (glauberite, alunite, etc.) with the production of caustic alkalis or of alkali salts, of sulphate of alumina, or purified alumina