Purification of carboxylic acid anhydrides

Details Purification of carboxylic acid anhydrides Purification of carboxylic acid anhydrides

1985-07-24

1988-12-20

Lone, Werren B.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260544A, 260549, C07C 51573

Patent

active

047924209

ABSTRACT:
Carboxylic acid anhydrides are freed from small amounts of halogen and halide moieties by treatment with hydrogen and carbon monoxide in the presence of a supported Group VIII noble metal catalyst.

REFERENCES:
patent: 4255591 (1981-03-01), Makin et al.
patent: 4335059 (1982-06-01), Rizkalla

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