Sequential flotation of sulfide ores

Details Sequential flotation of sulfide ores Sequential flotation of sulfide ores

1983-02-16

1984-07-17

Nozick, Bernard

Classifying, separating, and assorting solids

Precedent preparation of items or materials to facilitate...

Selective differentiation

209167, 252 61, 75 2, B03B 100

Patent

active

044604599

ABSTRACT:
A sequential flotation process for the recovery of high-grade concentrates of copper, lead and cobalt-nickel from sulfide ores is provided. A primary grind ore pulp is conditioned with SO.sub.2 as H.sub.2 SO.sub.3 under intense aeration, and the conditioned pulp subjected to sequential flotation, with regrinding and conditioning of a copper rougher concentrate obtained in the first flotation step for copper.

REFERENCES:
patent: 2399845 (1946-05-01), Allen et al.
patent: 3309029 (1967-03-01), Frame
patent: 4283017 (1981-08-01), Coale et al.
patent: 4351668 (1982-09-01), Stephenson et al.
patent: 4387034 (1983-06-01), Unger et al.

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