Reduction of catalyst deactivation in processes for hydroformyla

Details Reduction of catalyst deactivation in processes for hydroformyla Reduction of catalyst deactivation in processes for hydroformyla

1977-10-28

1979-04-24

Lone, Werren B.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C 4508

Patent

active

041512090

ABSTRACT:
In a process for hydroformylating an olefin in the presence of a catalyst comprising rhodium in complex combination with carbon monoxide and a triorganophosphorus ligand, progressive deactivation of the catalyst, as well as loss of the ligand species through by-product formation, are reduced by continuously stripping the liquid reaction medium to a degree such that the content of high-boiling organophosphorus by-products therein is maintained at a low level such that the ratio of phosphorus contained in said high-boiling by-products to phosphorus contained in the ligand present in the reaction medium does not exceed about 0.2.

REFERENCES:
patent: 3239566 (1966-03-01), Slaugh et al.
patent: 3821311 (1974-06-01), Hughes

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