Flotation apparatus and process

Details Flotation apparatus and process Flotation apparatus and process

1996-05-24

1998-06-09

Lithgow, Thomas M.

Classifying, separating, and assorting solids

Fluid suspension

Liquid

209168, 209164, 210220, 2102212, 210703, B03D 124, B01F 304

Patent

active

057627819

ABSTRACT:
A flotation apparatus including: an elongate vertical riser (142) in which a cocurrent flow of gas/slurry liquid mixture rises upwards to a discharge mouth at its top end; an aeration unit (140) provided at a lower end of the riser; a separation unit (150) provided at the top end of the riser; and wherein the height of the riser is selected to produce substantially turbulence free flow in which a high gas lift occurs in the riser such that a pressure drop between the liquid inlet and the discharge outlet of the aeration unit is sufficient to produce gas particle dispersion and recirculation of the slurry liquid through the flotation apparatus.

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