Classifying – separating – and assorting solids – Fluid suspension – Liquid
Patent
1996-04-30
1998-09-29
Lithgow, Thomas M.
Classifying, separating, and assorting solids
Fluid suspension
Liquid
209170, 2611221, 261DIG75, B03D 102, B03D 124
Patent
active
058142100
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.
Virginia Tech Intellectual Properties Inc.
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