Device for high efficiency continuous countercurrent extraction

Details Device for high efficiency continuous countercurrent extraction Device for high efficiency continuous countercurrent extraction

1978-05-17

1979-04-24

Adee, John

Liquid purification or separation

With means to add treating material

Chromatography

210511, B01D 1508

Patent

active

041510895

ABSTRACT:
A continuous extraction system wherein two immiscible solvents move in opposite directions through a rotating helical column. Elution of a desired phase takes place by use of a separation device at the head end which selects either the heavier or the lighter phase. This may consist of a suitably weighted suspended outlet tube in a rotating cylindrical outlet chamber or may consist of a shunt and settling chamber located outside the rotating part; the heavier phase may be removed from the bottom and the lighter phase may be removed from the top.

REFERENCES:
patent: 2029690 (1936-02-01), Wilson
patent: 2405158 (1946-08-01), Mensing
patent: 3775309 (1973-11-01), Ito et al.
patent: 4028056 (1977-06-01), Snyder et al.
patent: 4040742 (1977-08-01), Ito et al.
patent: 4041025 (1977-09-01), Ito
patent: 4058460 (1977-11-01), Ito

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