Process for the flotation of sulfide ores

Details Process for the flotation of sulfide ores Process for the flotation of sulfide ores

1979-06-25

1981-06-23

Halper, Robert

Classifying, separating, and assorting solids

Fluid suspension

Liquid

252 61, B03D 102

Patent

active

042749506

ABSTRACT:
Process using collectors for the flotation of minerals which allow the separation or enrichment of certain minerals, even at pH values around 7. These collectors are organic sulphides of the type R--S--R', in which the two groups R and R' are different and at least one of them preferably carries a substituent including oxygen or sulphur. The collectors are desirably used in a proportion of 10-100 ppm in relation to the weight of the mineral subject to flotation.

REFERENCES:
patent: 1728764 (1929-09-01), Keller
patent: 1774183 (1930-08-01), Moses
patent: 1875062 (1932-08-01), Lubs
patent: 1987526 (1935-01-01), Elbel
patent: 2014717 (1935-09-01), Burdick
patent: 2027357 (1936-01-01), Moses
patent: 2030093 (1936-02-01), Bousquet
patent: 2354550 (1944-07-01), Rosen
patent: 2570050 (1951-10-01), Eby
patent: 2645659 (1953-07-01), Morris
patent: 2680763 (1954-06-01), Brubaker
patent: 3328467 (1967-06-01), Hamilton
patent: 3775483 (1973-11-01), Frederickson
patent: 4211644 (1980-07-01), Anechers

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