(under subclass 299) Processes combined with a treatment to restore the activity of the solid catalyst of adsorbent to the original condition or to condition for reuse.
SEE OR SEARCH CLASS
210, Liquid Purification or Separation,
670+, for processes of purifying a liquid by ion exchange or sorption combined with regenerating the agents used.
502, Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making, for a composition comprising a catalyst or sorbent, per se, and see especially
20+, for a process of regenerating a catalyst or sorbent.
