Process using a supercritical fluid for regenerating synthetic o

Details Process using a supercritical fluid for regenerating synthetic o Process using a supercritical fluid for regenerating synthetic o

1976-04-15

1977-12-06

Douglas, Winston A.

Liquid purification or separation

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

Responsive to fluid flow

210 34, 210 40, 252411R, 210186, 210269, B01D 1506, B01J 109, B01J 3140

Patent

active

040615669

ABSTRACT:
An adsorbate is removed from a polymeric adsorbent by contacting the adsorbent with a supercritical fluid which is a solvent for the adsorbate. The supercritical fluid containing the dissolved adsorbate is then subjected to a physical treatment which renders the supercritical fluid a nonsolvent for the adsorbate and makes it possible to remove the adsorbate from the supercritical fluid. The supercritical fluid is then subjected to another physical treatment to restore it to a state wherein it is a solvent for the adsorbate so that it may be reused. The process is particularly suitable for adsorbent regeneration in the treatment of wastewaters.

REFERENCES:
patent: 3325971 (1967-06-01), Rosman
patent: 3492223 (1970-01-01), Walles
patent: 3843824 (1974-10-01), Roselius et al.
patent: 3923847 (1975-12-01), Roselius et al.
patent: 3939281 (1976-02-01), Schwengers
patent: 3969196 (1976-07-01), Zosel
patent: 3979287 (1976-09-01), Vulliez-Serment et al.

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