Process for manufacturing terephthalic acid by oxidation of para

Details Process for manufacturing terephthalic acid by oxidation of para Process for manufacturing terephthalic acid by oxidation of para

1976-04-14

1979-03-20

Siegel, A.

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

Organic compounds

Carboxylic acids and salts thereof

C07C 5133

Patent

active

041455606

ABSTRACT:
Process for manufacturing a benzene carboxylic acid by oxidation of an alkyl substituted benzene, and in particular for manufacturing terephthalic acid by oxidation of paraxylene, in which said benzene carboxylic acid, in solution in an aliphatic monocarboxylic acid, such as acetic acid, is oxidized by means of a gas containing molecular oxygen at a temperature T from 80.degree. to 260.degree. C. under a pressure from 2 to 30 kg/cm.sup.2, in the presence of a transition metal compound, in at least one reactor whose internal wall is maintained during the whole reaction time at a temperature, in .degree.C., from T - 10 to T + 100.

REFERENCES:
patent: 3170768 (1965-02-01), Baldwin

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