Specialized metallurgical processes – compositions for use therei – Processes – Electrothermic processes
Patent
1985-11-19
1987-03-31
Rosenberg, Peter D.
Specialized metallurgical processes, compositions for use therei
Processes
Electrothermic processes
75 32, 266200, C22B 502
Patent
active
046540776
ABSTRACT:
Process and apparatus for pyrometallurgically treating finely divided ores, concentrates, residues, slags and like materials. The process utilizes a reactor having two co-axially extending, vertical reaction chambers. The process comprises forming within the upper chamber of the reactor hot fuel-rich reaction gases; passing the hot fuel-rich reaction gases by dump flow into a second vertically extending chamber; introducing into the second chamber the finely divided materials to be treated; and reacting the finely divided materials with the hot fuel-rich reaction gases. The dump flow of hot fuel-rich reaction gases passing into the second chamber is produced by providing a zone of sudden expansion in the flow passage between the first and second chambers.
REFERENCES:
patent: 2894831 (1959-07-01), Old
patent: 3271134 (1966-09-01), Derham
patent: 3607224 (1971-09-01), Blaskowski
patent: 3915692 (1975-10-01), Herbert et al.
patent: 4362561 (1982-12-01), Weigel et al.
Bryk et al. "Flash Smelting of Lead Concentrates", J. of Metals, Dec. 1966, 1298-1302.
Melcher et al. "The KIVCET Cyclone Smelting Process For Impure Copper Concentrates", J. of Metals, Jul. 1976, 4-8.
Elvander et al. "The BOLIDEN INRED Process For Smelting Reduction of Fine-Grained Iron Oxides and Concentrates", Third Iron & Steel Cong. Proc. Apr. 1978, Chicago, IL, 195-200.
Bengtsson et al. "The Chemistry of the ELRED Process", I&SM, Oct. 1981, 30-34.
Chaudhurl et al. "Comparative View On The Metallurgy of the KIVCET-CS and Other Direct Lead Smelting Processes", CIM Bulletin, Nov. 1978, 126-130.
Kidd Thomas E.
Lazalier Glen R.
Pusateri John F.
Rosenberg Peter D.
St. Joe Minerals Corporation
Yeager Robert D.
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