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METHOD OF MANUFACTURE OF SULFURIC ACID USING MULTISTAGEOXIDATION OF SULFUR DIOXIDE TO SULFUR TRIOXIDE IN GASESFROM PYRITE,ZINCBLENDE AND COPPER MATTE ROASTING
METHOD OF MANUFACTURE OF SULFURIC ACID USING MULTISTAGEOXIDATION OF SULFUR DIOXIDE TO SULFUR TRIOXIDE IN GASESFROM PYRITE,ZINCBLENDE AND COPPER MATTE ROASTING