Process for recovering copper from copper-containing material

Details Process for recovering copper from copper-containing material Process for recovering copper from copper-containing material

1994-07-15

1998-08-18

Lithgow, Thomas M.

Classifying, separating, and assorting solids

Fluid suspension

Liquid

209167, 423 26, 252 61, 75727, 75728, 204107, B03D 102, B03D 124, C22B 308, C22B 320

Patent

active

057954658

ABSTRACT:
The present invention provides a process that employs both non-selective flotation and oxidative leaching of the resulting concentrates to recover an increased amount of copper from porphyry copper ores. The non-selective flotation step uses collectors and conditions, such as pH, that are conducive to the strong flotation of sulfide minerals generally. In the oxidative leach, the copper sulfide minerals in the concentrate fraction are oxidized to copper compounds, which are soluble in the leach solution. The oxidative leach includes the use of ammonia and sulfite under agitation leaching conditions to convert the copper sulfide minerals into ammonia soluble forms.

REFERENCES:
patent: 755302 (1904-03-01), Le Sueur
patent: 1131986 (1915-03-01), Benedict
patent: 1232080 (1917-07-01), Pope et al.
patent: 1570858 (1926-01-01), Perkins
patent: 1598296 (1926-08-01), MacKay
patent: 1728352 (1929-09-01), Lowe
patent: 1841438 (1932-01-01), Greenwalt
patent: 2012830 (1935-08-01), Ralston
patent: 2130278 (1938-09-01), Keyes
patent: 2148446 (1939-02-01), Drake
patent: 2647827 (1953-08-01), McGauley
patent: 2726934 (1955-12-01), Forward
patent: 2727818 (1955-12-01), Kenny et al.
patent: 2727819 (1955-12-01), Kenny et al.
patent: 2730493 (1956-01-01), Carlson
patent: 2807533 (1957-09-01), Abramson
patent: 2927017 (1960-03-01), Marvin
patent: 2928732 (1960-03-01), Bare et al.
patent: 3544306 (1970-12-01), McGauley
patent: 3583867 (1971-06-01), Slominski et al.
patent: 3753691 (1973-08-01), Grover et al.
patent: 3847357 (1974-11-01), Weston
patent: 3902896 (1975-09-01), Borbely et al.
patent: 3909248 (1975-09-01), Ryan
patent: 3964901 (1976-06-01), Swinkels et al.
patent: 3967957 (1976-07-01), Fonseca
patent: 4011072 (1977-03-01), Holman
patent: 4022866 (1977-05-01), Kuhn
patent: 4024218 (1977-05-01), McKay et al.
patent: 4115221 (1978-09-01), Wadsworth
patent: 4132758 (1979-01-01), Frankiewicz et al.
patent: 4138248 (1979-02-01), Narain
patent: 4153522 (1979-05-01), Arbiter
patent: 4165264 (1979-08-01), Satchell, Jr.
patent: 4331635 (1982-05-01), Arbiter et al.
patent: 4545963 (1985-10-01), Weir et al.
patent: 4585549 (1986-04-01), Malghan
patent: 4594132 (1986-06-01), Satchell
patent: 4971662 (1990-11-01), Sawyer et al.
patent: 5110455 (1992-05-01), Huck
patent: 5176802 (1993-01-01), Duyvesteyn et al.
patent: 5223024 (1993-06-01), Jones
patent: 5316567 (1994-05-01), Jones
patent: 5356457 (1994-10-01), Pincheira Alvarez
patent: 5431788 (1995-07-01), Jones
Taggart's Handbook of Mineral Dressing, John Wiley & Sons.COPYRGT. 1927, 1935.
Biswas & Davenport, "Extractive Metallurgy of Copper", ch. 3, pp. 61-79, (1980).

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