Process for the preparation of a hydrogenation catalyst

Details Process for the preparation of a hydrogenation catalyst Process for the preparation of a hydrogenation catalyst

1996-01-23

1998-10-06

Bell, Mark L.

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Inorganic carbon containing

502162, 502164, 502210, 502213, 502215, 502221, 502223, 502302, 502311, 502313, 502339, 502353, B01J 2118, B01J 27185, B01J 2342, B01J 2316

Patent

active

058175920

ABSTRACT:
A process for the preparation of a hydrogenation catalyst by reduction of platinum in an oxidation stage of not less than 2 in an aqueous medium in the presence of a carboniferous support, optionally following partial poisoning with a sulfur, arsenic, tellurium, or antimony-containing compound, using a reducing agent, in which the reducing agent used is an ammonium or phosphonium salt of the general formula I
in which X stands for N or P, R stands for hydrogen, C.sub.1 --C.sub.18 alkyl, C.sub.5 --C.sub.10 cycloalkyl, phenyl radical, and also a C.sub.1 --C.sub.4 alkyl radical substituted by phenyl, the phenyl radicals being mono-to tri-substituted by C.sub.1 --C.sub.6 alkyl, halogen, nitro or amino, if desired, provided that the radicals R may be the same or different but cannot simultaneously denote hydrogen, if X is P, n is an integer of 1 to 3, and Y is an organic anion which can reduce platinum in an oxidation stage other than zero to platinum in the oxidation stage of zero.

REFERENCES:
patent: 2823101 (1958-02-01), Jockers et al.
patent: 3966635 (1976-06-01), El-Ghatta et al.
patent: 4889704 (1989-12-01), Fuchs et al.
patent: 4895711 (1990-01-01), Biffar et al.
patent: 4956331 (1990-09-01), Tsurumi et al.
patent: 5120699 (1992-06-01), Weiss et al.
patent: 5155081 (1992-10-01), Steigleiter et al.
patent: 5227146 (1993-07-01), Heitner
patent: 5496789 (1996-03-01), Weiss et al.
patent: 5560895 (1996-10-01), Weiss et al.
Anderson, Academic Press, 1975, "Structure of Metallic Catalysts", pp. 164-243. month N/A.
Zimalkowski, Ferdinand Enke Verlag, Stuttgart, "Katalytische Hydrierungen im . . . ", 1965. month N/A.

Affiliated with

Also associated with

Rating

Process for the preparation of a hydrogenation catalyst does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for the preparation of a hydrogenation catalyst, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the preparation of a hydrogenation catalyst will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-76777