Process for packing chromatographic columns

Details Process for packing chromatographic columns Process for packing chromatographic columns

1978-04-10

1979-11-20

Adee, John

Liquid purification or separation

With alarm, indicator, register, recorder, signal or...

Responsive to fluid flow

55 67, 210DIG22, B01D 1508

Patent

active

041750373

ABSTRACT:
Methods for packing chromatographic columns are disclosed, including introducing a packing material into a chromatographic column under the influence of a first pressure differential until the column is filled to a desired extent with the packing material, and subsequently establishing a substantially regular periodic vibration along the length of the column and subjecting the packing material to a second pressure differential, which is preferably greater than the first pressure differential. The substantially regular periodic vibration can comprise ultrasonic vibration, which is preferably applied to the column by immersing it in a liquid bath and subjecting the liquid bath to ultrasonic vibrations.

REFERENCES:
patent: 2845136 (1958-07-01), Robinson
patent: 3164980 (1965-01-01), Lord
patent: 3248856 (1966-05-01), Guillemin et al.
patent: 3429743 (1969-02-01), Branson
patent: 3522172 (1970-07-01), Pretorius et al.
patent: 3692669 (1972-09-01), Bauman
patent: 3796657 (1974-03-01), Pretorius et al.

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