Specialized metallurgical processes – compositions for use therei – Processes – Free metal or alloy reductant contains magnesium
Patent
1996-02-27
1998-03-24
Simmons, David A.
Specialized metallurgical processes, compositions for use therei
Processes
Free metal or alloy reductant contains magnesium
75731, 75743, 423 27, 423 41, C22B 1500, C22B 308
Patent
active
057307768
ABSTRACT:
There is provided a novel hydrometallurgical process for the extraction of copper from sulphidic concentrates involving an oxidizing pressure leach using dilute sulphuric acid and a carbonaceous additive. The leaching step is carried out preferably at temperatures above the melting point of sulphur but below about 200.degree. C.
REFERENCES:
patent: 3867268 (1975-02-01), Kawulka et al.
patent: 4004991 (1977-01-01), Veltman et al.
patent: 4343773 (1982-08-01), Miller et al.
patent: 4483827 (1984-11-01), Heimala
patent: 5232491 (1993-08-01), Corrans et al.
Extractive Metallugy of Copper, Third Edition, A.K. Biswas and W.G. Davenport, Chapter 18, pp. 359-382.
Hydrometallurgical Production of Copper From Flotation Concentrates, J.R. Cobble, C.E. Jordan, and D.A. Rice, Report of Investigations/1993, United States Department of the Interior, Bureau of Mines, pp. 1-14 (no month).
Autoclaving of Copper Concentrates, James A. King and David B. Dreisinger, Proceedings of Copper 95-Cobre 95 International Conference, vol. III--Electrorefining and Hydrometallurgy of Copper, Edited by W.C. Cooper, D.B. Dreisinger, J.E. Dutrizac, H. Hein and G. Ugarte, The Metallurgical Society of CIM, pp. 511-533, 1995 (no month).
Effect of Sulfur--Dispersing Surfactants on the Oxygen Pressure Leaching of Chalcopyrite, Ralph P. Hackl, David B. Dreisinger and Jim A. King, Proceedings of Copper 95--Cobre 95 International Conference, vol. III--Ugarte, The Metallurgical Society of CIM, pp. 559-577, 1995 (no month).
Effect of Surfactants on Zinc and Iron Dissolution Rates During Oxidative Leaching of Sphalerite, George Owusu, David B. Dreisinger, and Ernest Peters, Hydrometallurgy 38 (1995), pp. 315-325 (no month).
Hydrometallurgical Processing of Copper Concentrates, C.J. Ferron and C.A. Fleming, Proceedings of Copper 95-Cobre 95 International Conference, vol. III--Electrorefining and Hydrometallurgy of Copper, Edited by W.C. Cooper, D.B. Dreisinger, J.E. Dutrizac, H. Hein and G. Ugarte, The Metallurgical Society of CIM, pp. 535-548, 1995 (no month).
Copper Metallurgy at the Crossroads, Fathi Habashi, Proceedings of Copper 95-Cobre 95 International Conference, vol. III--Electrorefining and Hydrometallurgy of Copper, Edited by W.C. Cooper, D.B. Dreisinger, J.E. Dutrizac, H. Hein and G. Ugarte, The Metallurgical Society of CIM, pp. 493-510, 1995 (no month).
Coal, Van Nostrands Scientific Encyclopedia, 7th Edition, Considine, vol. 1, pp. 662-665 (no date).
Collins Michael J.
Kofluk Donald K.
698638 Alberta Ltd.
Fors Arne I.
Lorengo J. A.
Simmons David A.
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