Process for producing trimellitic acid

Details Process for producing trimellitic acid Process for producing trimellitic acid

1990-11-29

1992-12-15

Dees, Jose G.

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

Organic compounds

Carboxylic acids and salts thereof

562416, 562417, C07C 51265

Patent

active

051718812

ABSTRACT:
It is a process for producing trimellitic acid (trimellitic acid, 1, 2, 4-tricarboxylic acid) by oxidizing pseudocumene with a molecular oxygen containing gas. More particularly, pseudocumene is oxidized into trimellitic acid by introducing a molecular oxygen containing gas in an acetic acid solvent in the presence of oxidizing catalysts, wherein the oxidization reactions in two different stages which have different ranges of temperature and different compositions of catalyst, respectively.

REFERENCES:
patent: 4835308 (1989-05-01), Sakakibara et al.

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