Process for preparing carboxylic acids by catalytic oxidation of

Details Process for preparing carboxylic acids by catalytic oxidation of Process for preparing carboxylic acids by catalytic oxidation of

1980-07-28

1981-08-25

Niebling, John F.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

562418, 562531, 562536, 252438, C07C 5300

Patent

active

042858755

ABSTRACT:
A process for preparing carboxylic acids by the oxidative conversion of the corresponding aldehydes comprises oxidizing the aldehydes in the presence of a catalyst comprising the anion [Fe(CN).sub.5 H.sub.2 O].sup.-3. The catalyst may be selected from [Fe(CN).sub.5 H.sub.2 O].sup.-3, compounds that form [Fe(CN).sub.5 H.sub.2 O].sup.-3 under the reaction conditions, and their salts. The catalyst is useful for the oxidation of aldehydes with oxygen or oxygen-containing gases. The present process permits the use of lower reaction times and temperatures, and reduces the formation of undesirable reaction by-products.

REFERENCES:
patent: 1937528 (1933-12-01), Oxley et al.
patent: 2010358 (1935-08-01), Groll et al.
patent: 3816522 (1974-06-01), Goldstein

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