Concentration of minerals

Details Concentration of minerals Concentration of minerals

1990-09-26

1992-06-16

Silverman, Stanley S.

Classifying, separating, and assorting solids

Fluid suspension

Liquid

261123, 261124, 209169, B03D 124

Patent

active

051222612

ABSTRACT:
The invention relates to a flotation column including a plurality of controlled recycle chambers intentionally introduced into the column to cause the non-float fraction or gangue to drop down in the main float stream while the desired float fraction travels in the opposite direction by recycling to continually mix the pulp while coursing through the column. Recycle zones are positioned on the periphery of the main passage or flotation zone within chambers located in series along the column. A portion of the slurry is drawn into a recycle zone where it passes downwardly to return to the flotation zone or the main passage through the column to again be swept through the column.

REFERENCES:
patent: 1407258 (1922-02-01), Connors
patent: 2141862 (1938-12-01), Holl
patent: 2758714 (1956-08-01), Hollingsworth
patent: 3298519 (1967-01-01), Hollingsworth
patent: 3371779 (1968-03-01), Hollingsworth
patent: 3393803 (1968-07-01), Daman
patent: 4066540 (1978-01-01), Wada
patent: 4287054 (1981-09-01), Hollingsworth
patent: 4431531 (1984-02-01), Hollingsworth
"Column Flotation" by Finche & Dobby Pub. 1990 Rice Univ. Houston, Tex. pp. 59, 60, 65, 72, 73, 116, 124, 129, 131 and 132.

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