Specialized metallurgical processes – compositions for use therei – Processes – Free metal or alloy reductant contains magnesium
Patent
1996-08-12
1999-06-29
Ryan, Patrick
Specialized metallurgical processes, compositions for use therei
Processes
Free metal or alloy reductant contains magnesium
75711, 75712, 75739, 75740, 75743, 75728, C22B 1500
Patent
active
059171162
ABSTRACT:
A method of processing a copper mineral, the method comprising activating the copper mineral by milling the copper mineral to P80 of between 2 and 20 micron, and subsequently subjecting the activated copper mineral to an oxidative hydrometallurgical treatment in the presence of chloride ions in an amount of from 2 to 10 g/L.
REFERENCES:
patent: 2996440 (1961-08-01), Forward et al.
patent: 3637371 (1972-01-01), Mackiw et al.
patent: 3777005 (1973-12-01), Gerlach et al.
patent: 3896208 (1975-07-01), Dubeck et al.
patent: 3949051 (1976-04-01), Pawlek
patent: 4266972 (1981-05-01), Redondo-Abad et al.
patent: 4405569 (1983-09-01), Dienstbach
patent: 4552589 (1985-11-01), Mason et al.
patent: 5232491 (1993-08-01), Corrans et al.
Amer, A.M., Investigation of the direct hydrometallurgical processing of mechanically activated complex sulphide ore, Akarem area, Egypt, 1994.
Balaz et al., P., Mechanical preservation of complex sulphide ores as a means of enhancing their leaching, 1989, pp. 750-769.
Balaz et al., P., Oxidative leaching of mechanically activated sphalerite, 1991, p. 141-150.
Beckstead et al., L. W., Acid Ferric Sulfate Leaching of Attritor-Ground Chalcopyrite Concentrates, International Symposium on Copper Extraction & Refining, 1976, pp. 611-637.
Berezowsky et al., R.M.G.S, Pressure Oxidation Pretreatment of Refractory Gold, Minerals and Metallurgical Processing, May 1984, pp. 1-4.
Biangardi et al., S., The Treatment of Sulphidic Copper Ores by the LM(Lurgi-Mitterberg) Process, International Symposium on Hydrometallurgy, 1973, pp. 5.1-5.4.
Cheng, C., The Leaching of Copper Sulphides in Acidic Oxygenated Sulphate-Chloride Solutions, Department of Chemical Engineering, Monash University, Australia, Jul. 1990, pp. iii-vi, 126, 128-131, pp. 170-172.
Corrans, I.J., Ultra Fine Milling for the Recovery of Refractory Gold, Minerals Engineering, vol. 4, Nos. 7-11, 1991, pp. 763-776.
Gerlach et al., J. K., Activation and Leaching of Chalocopyrite Concentrates with Dilute Sulfuric Acid, International Symposium on Hydrometallurgy, 1973, pp. 401-416.
Habashi, F., Extractive Metallurgy, Hydrometallurgy, vol. 2, 1970, pp. 99-131.
Juhasz, A. Z., Mechanical Activation of Minerals by Grinding: Pulverizing and Morphology of Particles, 1990, pp. 12-16, 222.
Kanome et al., O., Sulfuric Acid Oxygen-Pressure Leaching of Ni.sub.3 S.sub.2 Prepared by a Wet Process, Hydrometallurgy, 1987, pp. 1-9.
Kulebakin et al., V. G., Mechanism of Autoclave-Oxidative Leaching of Activated Pentlandite, 1984, pp. 330-334.
Kulebakin et al., V. G., Autoclave Leaching of Activated Pyrrhotite Concentrate, Jun. 1981, pp. 566-569.
Kulebakin et al., V. G., Case Transformations of Mechanically Activated Bornite in Autoclave Oxidative Leaching, 1986, pp. 187-191.
Mulak et al., W., Recent Developments in Activation of Leaching of Metal Sulphides, 1993, pp. 189-194.
Neustroev et al., V. I., Autoclave Leaching of Mechanically Activated Chalocopyrite Concentrate, 1982, pp. 180-185.
Pawlek, F., Research in Pressure Leaching, Journal of the South African Institute of Mining and Metallurgy, Jul. 1969, pp. 632-655.
Pawlek, F., The Influence on Grain Size and Mineralogical Composition on the Leachability of Copper Concentrates, International Symposium on Copper Extraction & Refining, 1976, pp. 690-705.
Peters, E., Direct Leaching of Sulfides: Chemistry and Applications, Metallurgical Transactions, vol. 78, 1976, pp. 505-517.
Pietsch, H., Copper sulphide ore dressing by the Lurgi-Mitterberg (LM) process, Lurgi Chemie und Huttentechnik GmbH, 1977, pp. 1-7.
Ritcey, G. M., Recovery of Copper from Concentrated Solution By Solvent Extraction Using Kelex 100, Hydrometallurgy, Apr. 1973, pp. 75-83.
Ritcey, G., Solvent Extraction, 1979, pp. 196-248.
Sohn et al., H., Rate Processes of Extractive Metallurgy, 1979, pp. ix-xii, 148-153.
Tkacova et al., K., Selective leaching of zinc from mechanically activated complex Cu-Pb-Zn concentrate, 1992.
Tkacova et al., K., Structural and Temperature Sensitivity of Leaching of Chalcopyrite with Iron(III) Sulphate, 1988, pp. 103-112.
Turke et al., W., Hydrometallurgical treatment of complex copper sulphide concentrates with special reference to the Lurgi-Mitterberg process, Institute of Mining and Metallurgy, 1978, pp. 101-112.
Vezina, J.A., Further Studies on Acid Pressure Leaching a Chalcopyrite-Pentlandite-Pyrrhotite Concentrate, The Canadian Mining and Metallurgical Bulletin, May 1973, pp. 1-4.
Vizsolyi et al., A., Copper and sulphur from chalcopyrite by pressure leaching, Journal of Metals, Nov. 1967, pp. 52-59.
Weir et al., D.R., Preconcentration and pressure oxidation of Porgera refractory gold ore,1986, pp. 201-207.
Johnson Gary Donald
Streltsova Naralia
Dominion Mining Limited
Elve M. Alexandra
Ryan Patrick
LandOfFree
Method for the processing of copper minerals does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for the processing of copper minerals, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for the processing of copper minerals will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1376975