Industrial process to manufacture aromatic carboxylic acids

Details Industrial process to manufacture aromatic carboxylic acids Industrial process to manufacture aromatic carboxylic acids

1996-09-20

1998-04-14

Barts, Samuel

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

Organic compounds

Carboxylic acids and salts thereof

C07C 51265

Patent

active

057393842

ABSTRACT:
The process that involves liquid phase catalytic oxidation of a mono- or poly-substituted alkyl aromatic compound comprises: (i) microdispersion of the air in the reactor at a pressure between 15 and 25 atmospheres and at a rate between 200 and 500 kg/sec.m.sup.2 ; and (ii) recycling the catalyst by evaporation of the purge that contains it and leaching the resulting paste with distilled water at 20.degree.-40.degree. C. to dissolve the catalyst separating it from the rest of the components.
Aromatic carboxylic acids are basic products used in a large number of industrial fields.

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Westerterp, K.R. (1984) In: Chemical reactor design and operation, John Wiley, pp.597-613.
Westerterp et al. (1983) Chem. Engineer. Sci. 38:1331-40.

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