Highly active Pd-Au catalyst

Details Highly active Pd-Au catalyst Highly active Pd-Au catalyst

1977-10-17

1979-01-23

Crasanakis, George

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252466PT, B01J 2366, B01J 2356

Patent

active

041360621

ABSTRACT:
A highly active catalyst for oxidative dehydrogenation reactions made up of Pd-Au alloy particles containing about 40 to 80 aromatic percent Au and ranging from 15 to 40 A in size, said particles being supported in an amount of from about 1.5 to 10 weight percent on a silica or other suitable carrier. The alloy particles, which have a surface composition similar to the overall composition, are prepared by an ion-exchange method in which a stable AU III compound such as bisethylenediamine Au III chloride and a palladium salt are added to an aqueous ammoniacal dispersion of the carrier material (i.e. silica gel) to form a precursor which is subsequently reduced in dihydrogen.

REFERENCES:
patent: 3156735 (1964-11-01), Armstrong
patent: 3441601 (1969-04-01), Sennewald et al.
patent: 3775342 (1973-11-01), Kronig et al.
patent: 3957688 (1976-05-01), Farha, Jr. et al.

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