Classifying – separating – and assorting solids – Fluid suspension – Liquid
Patent
1996-03-05
1998-05-05
Lithgow, Thomas M.
Classifying, separating, and assorting solids
Fluid suspension
Liquid
209170, B03D 124
Patent
active
057469105
ABSTRACT:
A novel apparatus for use in frothless flotation. The apparatus includes a cover which is sealingly engaged to the top of the flotation column and a wash-water tank in communication with the upper part of the flotation column wherein the level in the wash-water tank is maintained at or above the level of the cover thereby preventing the formation of a froth layer in the column. The apparatus is adapted to recycle the pulp and the tails. Gas is introduced to the feed and/or recycled tails in motionless mixers. Bubble-pulp separators are provided which recirculate pulp to enhance the quality of the yield.
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Her Majesty The Queen in right of Canada, as represented by the
Lithgow Thomas M.
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