Catalyst – solid sorbent – or support therefor: product or process – Regenerating or rehabilitating catalyst or sorbent – Treating with a liquid or treating in a liquid phase,...
Patent
1990-06-18
1991-03-12
Konopka, Paul E.
Catalyst, solid sorbent, or support therefor: product or process
Regenerating or rehabilitating catalyst or sorbent
Treating with a liquid or treating in a liquid phase,...
502 29, 502 32, 502 33, 585411, B01J 2396, B01J 3854, B01J 3852, C07C 5367
Patent
active
049993267
ABSTRACT:
A reactivation process for a deactivated supported palladium catalyst involves contacting the catalyst with an organic polar solvent for naphthalenic compounds at a temperature below about 200.degree. C. The organic polar solvent has a dielectric constant at 25.degree. C. in the range of about 4 to about 80 and has a boiling point at atmospheric pressure in the range of about 30.degree. C. to about 230.degree. C. Preferred organic polar solvents are acetone and methanol, as well as mixtures thereof.
REFERENCES:
patent: 2784238 (1957-08-01), Jacobs et al.
patent: 2819326 (1958-01-01), Mills
patent: 4950825 (1990-08-01), Sikkenga et al.
Sikkenga David L.
Williams Gregory S.
Zaenger Ian C.
Amoco Corporation
Henes James R.
Konopka Paul E.
Magidson William H.
Medhurst Ralph C.
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