Roasting of sulfides

Roasting of sulfide and sulfate ores (ZnS, pyrites, CU2S, CuCoS, nickel sulfides)... 

The modem process uses a potassium-sulfate-promoted vanadium(V) oxide catalyst on a silica or kie,selguhr support. The SO2 is obtained either by burning pure sulfur or by roasting sulfide minerals (p. 651) notably iron pyrite, or ores of Cu, Ni and Zn during the production of these metals. On a worldwide basis about 65% of the SO2 comes from the burning of sulfur and some 35% by the roasting of sulfide ores but in some countries (e.g, the UK) over 95% conies from the former. 

Reality Check That is 1.78 cubic meters. The roasting of sulfide ores is a major source of the gaseous pollutant S02, which contributes to acid rain (Chapter 14). 

Drying Ethylene dichloride synthesis Roasting of sulfide ores Incineration of solid waste... 

Commercially, sulfur dioxide is produced by roasting of sulfides for example ... 

Sulfur dioxide is produced in reactions such as the combustion of sulfur-containing fossil fuels and the roasting of sulfide ores. 

Fluidized beds have been used extensively for physical operations (e.g., adsorption and heat exchanger), chemical synthesis (e.g., acrylonitrile synthesis and maleic anhydride synthesis), metallurgical and mineral processes (e.g., roasting of sulfide ores, resid hydro-treating, and reduction of iron oxide), and other applications, such as coal combustion and microorganism cultivation. 

Shu, J. Lakhmanan, V.I. Convey, J. Sintering and ferrite formation during high temperature roasting of sulfide concentrates. Can. Metall. Quart. 1999, 38 (4), 215-225. 

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