Classifying – separating – and assorting solids – Fluid suspension – Liquid
Patent
1990-08-30
1992-12-01
Silverman, Stanley S.
Classifying, separating, and assorting solids
Fluid suspension
Liquid
209168, 209 10, 261DIG75, 2611211, 2102212, 366338, 366339, B03D 124, B03D 114
Patent
active
051677989
ABSTRACT:
A method and apparatus are disclosed for the microbubble flotation separation of very fine and coarse particles, especially coal and minerals, so as to produce high purity and high recovery efficiency. This is accomplished through the use of a flotation column, microbubbles, recycling of the flotation pulp, and countercurrent wash water to gently wash the froth. Also disclosed are unique processes and apparatus for generating microbubbles for flotation in a highly efficient and inexpensive manner using either a porous tube or in-line static generators.
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Adel Gregory T.
Luttrell Gerald H.
Yoon Roe-Hoan
Lithgow Thomas M.
Silverman Stanley S.
Virginia Tech Intellectual Properties Inc.
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