Carbonylation with Group VIII noble metal catalysts

Details Carbonylation with Group VIII noble metal catalysts Carbonylation with Group VIII noble metal catalysts

1978-10-06

1981-02-24

Killos, Paul J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

560232, 560233, 568484, C07C 5156

Patent

active

042527414

ABSTRACT:
In the carbonylation of alkyl esters in the presence of a Group VIII noble metal catalyst to produce a reaction mixture comprising volatile components and the non-volatile Group VIII noble metal catalyst, and the volatile components are separated from the catalyst, catalyst activity is maintained by providing a partial pressure of hydrogen of at least 10 psi during the separation of the volatile products. A partial pressure of at least 15 psi of carbon monoxide is also preferably provided, particularly when a metal promoter for the Group VIII noble metal catalyst is present, during such separation.

REFERENCES:
patent: 4002677 (1977-01-01), Magheri et al.
patent: 4115444 (1978-09-01), Rizkalla

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