Method and apparatus for concentration of minerals by froth flot

Details Method and apparatus for concentration of minerals by froth flot Method and apparatus for concentration of minerals by froth flot

1987-01-21

1988-04-05

Bashore, S. Leon

Classifying, separating, and assorting solids

Fluid suspension

Liquid

209170, 2102212, 210703, 261 76, 261122, B03D 1024

Patent

active

047357096

ABSTRACT:
A froth flotation system for separating a mineral fraction from an aqueous pulp containing a mixture of mineral and gangue particles. The aqueous pulp is supplied to a pulp-filled vessel (or column) wherein a froth is formed on the surface of the pulp and collected in a launder. Gas bubbles are introduced into the pulp in the vessel by two different means to generate the froth. In accordance with one means, water is aspirated into a stream of pressurized gas (air) to form a stream of aerated water which is injected into the lower portion of the pulp-filled vessel. In accordance, the other means, a second stream of pressurized gas (air), is sparged through a porous wall of one or more micro-diffusers located within the vessel. The dual means for generating bubbles produces a significantly higher level of mineral separation than can be achieved from either means separately.

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