Process for converting non-ferrous metal sulfides

Details Process for converting non-ferrous metal sulfides Process for converting non-ferrous metal sulfides

1978-05-31

1979-05-22

Rutledge, L. Dewayne

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 6, 75 7, 75 73, 75 75, 75 76, 75 77, 75 82, 423 47, 423542, 423571, C22B 400

Patent

active

041557492

ABSTRACT:
Non-ferrous metal sulfides are converted to recover metals therefrom in a high speed rotary converter, wherein an oxygen-containing gas is used for said conversion, with sulfur trioxide added to the converter along with the oxygen-containing gas to assist in control of temperatures of the charge during conversion, the sulfur trioxide being reduced to sulfur dioxide within the converter and exhausted therefrom.

REFERENCES:
patent: 2683077 (1954-07-01), Lewis
patent: 3627510 (1971-12-01), Uogt et al.
patent: 3792998 (1974-02-01), Norro
patent: 3941587 (1976-03-01), Queneau et al.
patent: 4003740 (1977-01-01), Huggins et al.
patent: 4010030 (1977-03-01), French
patent: 4072507 (1978-02-01), Rajcevic et al.
Dravo Corp., Publication No. 74ENCO8, Article "TBRC A New Smelting Technique", R. A. Danide and L. H. Jaquay, Feb. 20, 1972.
Dravo Corp., Publication No. 74ENCO7, "Full Scale TBRC Smelting Tests on Copper Concentrate", R. A. Danide and L. H. Jaquay, Feb. 24, 1974.

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