Selective flocculation, magnetic separation, and flotation of or

Details Selective flocculation, magnetic separation, and flotation of or Selective flocculation, magnetic separation, and flotation of or

1979-09-26

1981-11-03

Halper, Robert

Solid material comminution or disintegration

Processes

With application of fluid or lubricant material

209 5, 209 8, 209 39, 209166, 241 20, B02C 2318

Patent

active

042981697

ABSTRACT:
Low-grade, finely disseminated, ores that are not readily amenable to conventional flotation can be upgraded by a selective flocculation-magnetic separation-flotation process. Non-magnetic particles in such an ore can be selectively flocculated either by iron particles in the ore that contain residual magnetite or by the addition of a finely ground magnetic concentrate to the ore. The selectively flocculated pulp is then passed through a magnetic separator for the rejection of siliceous gangue. Depending on the grade of the magnetic concentrates, either cationic or anionic silica flotation may be applied for further upgrading.

REFERENCES:
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Taggart, Handbook of Mineral Dressing, 13-19, 1945.

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