04061566 is referenced by 40 patents and cites 7 patents.

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.

Title
Process using a supercritical fluid for regenerating synthetic organic polymeric adsorbents and wastewater treatment embodying the same
Application Number
512124
Publication Number
4061566
Application Date
April 15, 1976
Publication Date
December 6, 1977
Inventor
Michael Modell
Cambridge
MA, US
Agent
Bessie A Lepper
Assignee
Arthur D Little
MA, US
IPC
B01J 31/40
B01J 1/09
B01D 15/06
View Original Source