Method of regulating a flotation system with a primary and secon

Details Method of regulating a flotation system with a primary and secon Method of regulating a flotation system with a primary and secon

1993-07-30

1994-07-19

Lithgow, Thomas M.

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

210712, 210713, 210718, 210741, 210744, 210805, 2101951, 209 1, 209164, 162 4, B03D 102, B03D 108

Patent

active

053306554

ABSTRACT:
The invention is directed to a method of regulating a flotation system having an inflow quantity of suspension flow dependent on production demands, including a primary flotation stage and a secondary flotation stage where the secondary flotation stage treats the froth of the primary stage, transporting de-aereated froth from the primary flotation stage to a collection vessel which is in fluid communication the secondary flotation stage; recycling suspension flow from the secondary flotation cells of the secondary flotation stage in part to an inlet of the primary flotation stage, and in part to an inlet of the secondary flotation stage, and regulating the level of de-aereated froth in the collection vessel by controlling the amount of suspension flow recycled from said secondary flotation stage to the inlet of the secondary flotation stage.

REFERENCES:
patent: 1457077 (1923-05-01), Janney
patent: 1886979 (1932-11-01), Ruth
patent: 2005742 (1935-06-01), Hines
patent: 4563274 (1986-01-01), Rothon
patent: 4952308 (1990-08-01), Chamberlin
patent: 5188726 (1993-02-01), Jameson
Pfalzer, Lothar; "Deinking of Secondary Fibers" TAPPI, Sep. 1980 vol. 63, No. 9, pp. 113-116.

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