Specialized metallurgical processes – compositions for use therei – Processes – Producing or treating free metal
Patent
1992-12-18
1994-01-25
Rosenberg, Peter D.
Specialized metallurgical processes, compositions for use therei
Processes
Producing or treating free metal
C22B 1506
Patent
active
052812529
ABSTRACT:
The invention relates to the smelting or converting of particulate sulfide material, such as nickel or copper sulfide. A molten seed bath of smelted or converted material is provided in a reaction vessel. Particulate sulfide material is injected into a reaction vessel below the surface of the melt. Top blowing with an oxygen-containing gas generates heat and brings about the oxidation of the sulfides with a significant decrease in the amount of dust generated. Optional bottom stirring with a non-reactive gas such as nitrogen may further increase efficiency.
REFERENCES:
patent: 3281236 (1966-10-01), Meissner
patent: 4416690 (1983-11-01), Richards et al.
patent: 4469513 (1984-09-01), Staib
patent: 4614542 (1986-09-01), Kimura
patent: 4830667 (1989-05-01), Marcuson et al.
Bustos "Recent Developments in the Teniente Modified Converter Operation and in Converter Slag Cleaning at the Caletones Smelter", Pyrometallurgy '87 1987, pp. 1031-1045.
Matthew et al., "The Continuous Isasmelt Lead Process", Lead-Zinc '90, 1990, pp. 889-901.
Floyd et al., "Sirosmelt and The Wide World of Opportunity", Engineering & Mining Journal, Jun. 1985, pp. 52-56.
Nagano et al., "Commercial Operation of Mitsubishi Continuous Copper Smelting and Converting Process", International Symposium on Copper Extraction & Refining, 1976, pp. 439-457.
Diaz-"Conversion of Nickel and Sulfur-Containing Copper to Blister", Copper 87, vol. 4, Pyrometallurgy of Copper, pp. 294-304.
U.S. patent application Ser. No. 07/959,837 "Conversion of Non-Ferrous Matte" Marcuson et al.
Hall David E.
Landolt Carlos A.
Marcuson Samuel W.
Biederman Blake T.
Inco Limited
Rosenberg Peter D.
Steen Edward A.
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