Process for the production of sulfur dioxide

Details Process for the production of sulfur dioxide Process for the production of sulfur dioxide

C - Chemistry, Metallurgy

01

B

23/122

C01B 17/52 (2006.01) C22B 1/08 (2006.01)

Patent

CA 1249416

A PROCESS FOR THE PRODUCTION OF SULFUR DIOXIDE ABSTRACT OF THE DISCLOSURE This invention relates to a process for the production of sulfur dioxide by the thermal decomposition of metal sulfates and the simultaneous roasting of sulfidic ores in a reactor, the improvement which comrises intro- ducing the metal sulfates together with the metal sulfides into the reactors in the form of mixed granules. Advantageously, the mixed granules are produced by pre- granulating the metal sulfate with at least one of sulfuric acid and/or a granulating aid and subsequently coating with metal sulfide. The mixed granules may be powdered with a dry non- adhering substance such as coal dust, fine coal, sulfur and/or cinders prior to introduction into the reactor.

460448

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