Process for oxygen sprinkle smelting of sulfide concentrates

Details Process for oxygen sprinkle smelting of sulfide concentrates Process for oxygen sprinkle smelting of sulfide concentrates

C - Chemistry, Metallurgy

22

B

53/351

C22B 5/08 (2006.01) C22B 5/02 (2006.01) C22B 5/14 (2006.01)

Patent

CA 1143951

Abstract Method for producing a metal matte from a nonferrous metal containing sulfide concentrate in a reverberatory type furnace by sprinkling a mixture of sulfide concentrates, flux and an oxygen-rich gas as a plurality of paraboloidal suspensions into a hot sulfur dioxide-rich atmosphere above the slag phase of the furnace charge. By introducing the concentrate, flux and oxygen-rich gas in such a manner, oxidation of the sulfide is effected prior to contact with the slag phase and substantially uniform heat and mass distribution are present throughout a major portion of the furnace. Coal is optionally introduced in a homogeneous mixture with the concentrate if nonautogenous operation is desired or slag cleaning is carried out to produce a discardable slag.

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