Method for removing inorganic sulfides from non-sulfide minerals

Details Method for removing inorganic sulfides from non-sulfide minerals Method for removing inorganic sulfides from non-sulfide minerals

1983-10-17

1985-11-12

Nozick, Bernard

Classifying, separating, and assorting solids

Precedent preparation of items or materials to facilitate...

Selective differentiation

B03B 100

Patent

active

045526524

ABSTRACT:
A method for removing inorganic sulfides from finely ground, non-sulfide minerals is provided. A polymeric agent having a molecular weight of from about 1,000 to about 300,000 and with a plurality of xanthate groups per molecule is admixed into an aqueous suspension including inorganic sulfides and non-sulfide minerals. The polymeric agent adsorbs onto the inorganic sulfides and maintains them as a dispersion while the remaining minerals are selectively separated, as by flocculation.

REFERENCES:
patent: 2629494 (1953-02-01), Brown
patent: 3692673 (1972-09-01), Hoke
patent: 4078993 (1978-03-01), Griffith
patent: 4211642 (1980-07-01), Petrovich
Attia, et al., "Devel. of Complexing Polymers for the Selective Flocculation of Copper Minerals".
Attia, et al., "Feasibility of Cleaning High Sulfur Coal Fines by Selective Flocculation", XIV Inter. Mineral Proc. Cng. (10/17/82).
Attia, et al., "Prin. of Separation of Ore Minerals by Selective Flocculation", Recent Devel. in Sep. Science, vol. IV (1978).
Attia, "Selective Flocculation: State of the Art Review", Society of Mining Engineers of AIME, Feb. 14-18, 1982.

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