Extraction apparatus, preferably for analyzing purposes

Details Extraction apparatus, preferably for analyzing purposes Extraction apparatus, preferably for analyzing purposes

1978-02-15

1980-01-22

Granger, Theodore A.

Liquid purification or separation

With repair or assembling means

210249, 210416R, 210424, B01D 2920

Patent

active

041849612

ABSTRACT:
An extraction apparatus for extraction analysis of solid material is described, which consists of an extraction column mounted on a frame and a tubular filter holder mounted on the frame beneath the column. The holder is movable in the frame into and out of engagement with the lower end of the column.
A multi-port valve is connectable to the lower end of the holder for supply of extraction liquid and flushing liquid to the column through the filter and for withdrawal of extraction liquid and flushing liquid from the column through the filter. The filter holder is removable from the frame for analysis of the solid material remaining after the extraction.

REFERENCES:
patent: 2436077 (1948-02-01), Robertson
patent: 2612036 (1952-09-01), Anpang
patent: 2649205 (1955-08-01), Quinn
patent: 3257170 (1966-06-01), Marcus et al.
patent: 3356218 (1967-12-01), Grudoski
patent: 3565256 (1971-02-01), Loeffler
patent: 3791524 (1974-02-01), Cho
patent: 3831759 (1974-08-01), Gelman
patent: 3956130 (1976-05-01), Cunningham et al.
patent: 4006084 (1977-02-01), Priest
patent: 4055498 (1977-10-01), Radnoti

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