Process for producing dicarboxylic acids by the oxidation of xyl

Details Process for producing dicarboxylic acids by the oxidation of xyl Process for producing dicarboxylic acids by the oxidation of xyl

1978-08-23

1979-10-23

Siegel, A.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acids and salts thereof

C07C 5133

Patent

active

041722094

ABSTRACT:
A process for the catalytic liquid-phase oxidation of xylenes to produce benzene dicarboxylic acids. An off-gas stream which remains after a partial condensation of the oxidation zone vapor-phase effluent stream and the off-gas streams of an acetic acid fractionation column and a methyl acetate fractionation column are scrubbed by internally generated water streams. The aqueous scrubbing liquids are then processed in fractionation columns used in the process to recover acetic acid and methyl acetate.

REFERENCES:
patent: 3089906 (1963-05-01), Saffer et al.

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