Preparation of highly dispersed supported group VIII metal catal

Details Preparation of highly dispersed supported group VIII metal catal Preparation of highly dispersed supported group VIII metal catal

1977-06-17

1979-03-20

Gantz, Delbert E.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252435, 252438, 2524253, 429 40, 429 44, B01J 2714, B01J 2724, B01J 3700

Patent

active

041453140

ABSTRACT:
The instant invention relates to a method of preparing highly dispersed supported Group VIII metal catalysts. The instant invention further relates to the redispersion of sintered or agglomerated supported Group VIII metal catalysts. The process comprises the formation of supported Group VIII metal-phosphorus intermediate compounds followed by the treatment of these supported Group VIII metal-phosphorus compounds in an inert atmosphere at a temperature in the range of about 400.degree. C. to about 750.degree. C., preferably, about 550.degree. C. to about 700.degree. C., most preferably from 630.degree.-700.degree. C. The composition resultant from the dispersion heating step will form the highly dispersed, supported Group VIII metal catalysts by decomposition when reacting with an oxygen containing atmosphere, e.g. air, or reacting with water.

REFERENCES:
patent: 2890167 (1959-06-01), Haensel
patent: 2983997 (1961-05-01), Schmeckenbecher
patent: 3179694 (1965-04-01), Eygen et al.
patent: 3236693 (1966-02-01), Caesar
patent: 3411953 (1968-11-01), Lanson et al.
patent: 3448165 (1969-06-01), Bloch
patent: 3784483 (1974-01-01), Cichowshi et al.
patent: 3792086 (1974-02-01), Frank et al.
patent: 3884798 (1975-05-01), Hilfman
patent: 3961987 (1976-06-01), Mund et al.

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