Froth flotation process and apparatus

Details Froth flotation process and apparatus Froth flotation process and apparatus

2007-01-16

2007-01-16

Lithgow, Thomas M. (Department: 1724)

Classifying, separating, and assorting solids

Fluid suspension

Liquid

C209S168000, C209S170000, C239S498000, C239S499000, C239S524000

Reexamination Certificate

active

10203987

ABSTRACT:
A froth flotation process typically used to separate particulate materials such as coal, has a mixed size feed (1) separated in a sieve bend (2) into a stream of relatively fine particles (3) and a stream of relatively coarse particles (14). The fine particles are fed to a flotation cell (7) in the normal manner, while the coarse particles are mixed with wash water (16) and distributed onto or into the froth layer (10) by wash water distribution apparatus (19, 20). Alternative variations of wash water distribution apparatus able to handle coarse particles are also described.

REFERENCES:
patent: 291107 (1884-01-01), Tobin
patent: 696057 (1902-03-01), Lanstrum
patent: 2005742 (1935-06-01), Hines
patent: 2550456 (1951-04-01), De Flon
patent: 2724614 (1955-11-01), Rider
patent: 3221995 (1965-12-01), Sievert
patent: 3371779 (1968-03-01), Hollingsworth
patent: 4113021 (1978-09-01), Werner
patent: 4205785 (1980-06-01), Stanley
patent: 4523991 (1985-06-01), Meyer et al.
patent: 4564369 (1986-01-01), Burgess et al.
patent: 4592834 (1986-06-01), Yang
patent: 4659458 (1987-04-01), Chin et al.
patent: 4997549 (1991-03-01), Atwood
patent: 5066389 (1991-11-01), Zlobin et al.
patent: 5116487 (1992-05-01), Parekh et al.
patent: 5152458 (1992-10-01), Curtis
patent: 5167798 (1992-12-01), Yoon et al.
patent: 5234111 (1993-08-01), Zlobin et al.
patent: 5277317 (1994-01-01), Zlobin et al.
patent: 6413366 (2002-07-01), Kemper
patent: 99/61699 (1999-12-01), None
Supplementary Partial European Search Report. 4 pages.

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