Process for the selective separation of base metal sulfides and

Classifying – separating – and assorting solids – Fluid suspension – Liquid

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209166, B03D 114

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active

045156883

ABSTRACT:
The present invention comprises a process for the separation of ore components by flotation comprising: grinding ore to form pulp, mixing said pulp with sulfide ions and cyanide ions, adjusting the concentration of said sulfide ions to a level at least sufficient to cause depression of base metal mixed sulfides but insufficient to cause substantial activation of pyrites, and adjusting the concentration of said cyanide ions to a level at least sufficient to cause auxiliary depression of the mineral components of said ore which are required to be depressed in said flotation, but insufficient to cause overdepression of said mineral components; said sulfide ions and cyanide ions having been introduced to said pulp at predetermined times and in a predetermined sequence.

REFERENCES:
patent: 1429544 (1922-09-01), Stevens
patent: 1469042 (1923-09-01), Hellstrand
patent: 1833957 (1931-12-01), Thomas et al.
patent: 1916196 (1933-07-01), Ayer et al.
patent: 2048370 (1936-07-01), Brinker
patent: 2052214 (1936-08-01), Brinker
patent: 2195724 (1940-04-01), Gaudin et al.
patent: 2196233 (1940-04-01), Terry
patent: 2231265 (1941-02-01), Gaudin
patent: 2316743 (1943-04-01), Marsh
patent: 2471384 (1949-05-01), Booth et al.
patent: 3033364 (1962-05-01), Weston
patent: 3454161 (1969-07-01), Mercade
patent: 3811569 (1974-05-01), Shirley
patent: 3847357 (1974-11-01), Weston
patent: 3919080 (1975-11-01), Stauter
patent: 4081364 (1978-03-01), Leptic
patent: 4211642 (1980-07-01), Petrovich
patent: 4231859 (1980-11-01), Huiatt et al.
Nakahiro-Effect of Sodium Sulfide on the Prevention of Copper Activation for Sphalerite, M/M, Fac Engr Kyota Chivpart 4, 10/78, pp. 241-257.
Mitrofanov, Solution of Some Problems Concerning the Theory and Practice of Selective Rotation in the USSR, Int Mineral Dressing Congress, Stockholm, 1957, pp. 441-449.

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