B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
73/93
B01D 15/08 (2006.01) B01D 11/04 (2006.01) C02F 1/26 (2006.01) G01N 30/42 (2006.01)
Patent
CA 1115983
-14- DEVICE FOR HIGH EFFICIENCY CONTINUOUS COUNTERCURRENT EXTRACTION USING A ROTATING HELICAL TUBE ABSTRACT A continuous extraction system for countercurrent chromatography is disclosed 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.
327792
Fetherstonhaugh & Co.
The United States Of America Represented By The Secretary
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