Flotation cell and method

Details Flotation cell and method Flotation cell and method

1997-07-14

1999-05-11

Lithgow, Thomas M.

Classifying, separating, and assorting solids

Fluid suspension

Liquid

209166, 209170, 423 26, B03D1/16;1/02;1/24;1/26

Patent

active

059029773

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: 1283159 (1918-10-01), Groch
patent: 1314316 (1919-08-01), Flinn
patent: 1374446 (1921-04-01), Greenawalt
patent: 1374499 (1921-04-01), Greenawalt
patent: 1402099 (1922-01-01), Shimmin et al.
patent: 1471332 (1923-10-01), Greenawalt
patent: 1570858 (1926-01-01), Perkins
patent: 1598296 (1926-08-01), MacKay
patent: 1728352 (1929-09-01), Lowe
patent: 1841438 (1932-01-01), Greenawalt
patent: 1881412 (1932-10-01), MacCamy
patent: 2012830 (1935-08-01), Ralston
patent: 2130278 (1938-09-01), Keyes
patent: 2141862 (1938-12-01), Hall
patent: 2148446 (1939-02-01), Drake
patent: 2202484 (1940-05-01), Emery
patent: 2226170 (1940-12-01), Lasseter
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: 2928543 (1960-03-01), Logue
patent: 2928732 (1960-03-01), Bare et al.
patent: 3071447 (1963-01-01), Bernhardi
patent: 3202281 (1965-08-01), Weston
patent: 3393802 (1968-07-01), Logue
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 et al.
patent: 3964901 (1976-06-01), Swinkels et al.
patent: 4011072 (1977-03-01), Holman et al.
patent: 4022866 (1977-05-01), Kuhn et al.
patent: 4024218 (1977-05-01), McKay et al.
patent: 4115221 (1978-09-01), Wadsworth et al.
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: 4490248 (1984-12-01), Filippov
patent: 4545963 (1985-10-01), Weir et al.
patent: 4585549 (1986-04-01), Malghan
patent: 4960509 (1990-10-01), McNeill
patent: 4971662 (1990-11-01), Sawyer et al.
patent: 5110455 (1992-05-01), Huch
patent: 5176802 (1993-01-01), Duyvesteyn et al.
patent: 5431788 (1995-07-01), Jones
Biswas & Davenport, "Extractive Metallurgy of Copper", ch. 3, pp. 61-79, (1980).
Taggart, Wiley & Long, "Froth Flotation", Handbook Of Mineral Dressing, 1945.

Affiliated with

Also associated with

Rating

Flotation cell and method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Flotation cell and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flotation cell and method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-246741