Process for regenerating adsorbents with supercritical fluids

Details Process for regenerating adsorbents with supercritical fluids Process for regenerating adsorbents with supercritical fluids

1974-10-04

1978-11-07

Konopka, P. E.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

34 12, 34 36, 210 32, 210 40, 210186, 210269, 568758, B01J 2120, B01J 109, B01D 1506

Patent

active

041245288

ABSTRACT:
An adsorbate is removed from an 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 and apparatus are particularly suitable for adsorbent regeneration in the treating of waste water.

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patent: 3923847 (1975-12-01), Roselius et al.
patent: 3939281 (1976-02-01), Schwengers
patent: 3969196 (1976-07-01), Zosel
patent: 4061566 (1977-12-01), Modell

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