Cross flow cyclonic flotation column for coal and minerals benef

Details Cross flow cyclonic flotation column for coal and minerals benef Cross flow cyclonic flotation column for coal and minerals benef

1997-07-08

2000-05-02

Lithgow, Thomas M.

Classifying, separating, and assorting solids

Fluid suspension

Liquid

209168, 209169, 209170, B03D 124, B03D 114

Patent

active

060561254

ABSTRACT:
An apparatus and process for the separation of coal from pyritic impurities using a modified froth flotation system. The froth flotation column incorporates a helical track about the inner wall of the column in a region intermediate between the top and base of the column. A standard impeller located about the central axis of the column is used to generate a centrifugal force thereby increasing the separation efficiency of coal from the pyritic particles and hydrophillic tailings.

REFERENCES:
patent: 3339730 (1967-09-01), Boutin
patent: 4592834 (1986-06-01), Yang
patent: 4744890 (1988-05-01), Miller et al.
patent: 4750994 (1988-06-01), Schneider
patent: 4964576 (1990-10-01), Datta
patent: 5116487 (1992-05-01), Parekh
patent: 5224604 (1993-07-01), Duczmal et al.
"Preliminary Results from a Cross Flow Flotation Column for Enhanced Pyritic Sulfus Rejection from Coal," Ralph W. Lai and Robert A. Patton.

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