Process for selective flotation of copper-lead-zinc sulfide

Details Process for selective flotation of copper-lead-zinc sulfide Process for selective flotation of copper-lead-zinc sulfide

1993-11-09

1995-08-08

Lithgow, Thomas M.

Classifying, separating, and assorting solids

Fluid suspension

Liquid

209166, B03D 102, B03D 106, B03B 100

Patent

active

054391156

ABSTRACT:
In a process for a selective flotation of a copper-lead-zinc sulfide ore the raw ore is ground and slurried with water and the resulting suspension is aerated with air to adjust a certain oxidation-reduction potential and is subsequently successively conditioned with SO.sub.2, Ca(OH).sub.2, and collecting and frothing agents, whereafter a flotation of Cu is effected. An oxidation-reduction potential which is 70 to 90% of the oxidation-reduction potential desired for the flotation of Cu is adjusted by the aeration of the suspension with air before the flotation of Cu, the desired oxidation-reduction potential of 60 to 340 mV is adjusted during the flotation of Cu by the aeration with air, the flotation of Cu is effected at a pH of 8.5 to 10.5 and Cu is removed from the flotation process with the froth.

REFERENCES:
patent: 1067485 (1913-07-01), Nutter
patent: 1636974 (1927-07-01), Wiser
patent: 1678259 (1928-07-01), Martin
patent: 1869532 (1932-08-01), Weinig
patent: 1893517 (1933-01-01), Gaudin
patent: 1955978 (1934-04-01), Ruth
patent: 1973558 (1934-09-01), Brinker
patent: 2048370 (1936-07-01), Brinker
patent: 2150114 (1939-03-01), Anderson
patent: 2205194 (1940-06-01), Green
patent: 2898196 (1959-08-01), Forward
patent: 3102854 (1963-09-01), Atwood
patent: 3655044 (1972-04-01), Delaney
patent: 3883421 (1975-05-01), Cutting
patent: 4011072 (1977-03-01), Holman
patent: 4283017 (1981-08-01), Coale
patent: 4460459 (1984-07-01), Shaw
patent: 4561970 (1985-12-01), Heimala
patent: 4585549 (1986-04-01), Malghan
patent: 4879022 (1989-11-01), Clark
patent: 5074994 (1991-12-01), Ray
patent: 5108495 (1992-04-01), Heimala
Beck, R. D. et al. "The Broken Hill Concentrator or Black Mountain Mineral Dev. Co. Ltd. South Africa".
Presented at Complex Sulfide Ore Conference, Rome, Italy Oct. 8, 1980.
Wills, B. A. "The Separation by Flotation of Copper-Lead-Zinc Sulfides", Mining Magazine-Jan.-1984.
"Flotation Reagents" 1960 American Cyanamid Co.
Roberts, A. N. "Metallurgical development at Woodlawn Mines, Australia"--Presented at Complex Sulfide Ore Conf., Rome, Oct. 8, 1980.
Beyzavi, A. N. et al. "Selective Flotation of Sulfidic COmplex Ores . . . " Elsevier from Proceedings of the XVE International Mineral Processing Congress Amsterdam 1988.

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