Process for producing aromatic polycarboxylic acid

Details Process for producing aromatic polycarboxylic acid Process for producing aromatic polycarboxylic acid

1980-08-11

1982-08-24

Siegel, Alan

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

Organic compounds

Carboxylic acids and salts thereof

C07C 51255

Patent

active

043462324

ABSTRACT:
Aromatic polycarboxylic acids are produced in high yield by oxidation of polyalkyl-substituted aromatic aldehydes or polyalkyl-substituted aromatic carboxylic acids with molecular oxygen in water as a solvent in the presence of metal ions of manganese or cerium and a bromine ion-liberating compound as a catalyst, while keeping an oxygen concentration of effluent gas from reactor at least at 3%.

REFERENCES:
patent: 2962361 (1960-11-01), Spiller et al.
patent: 3157691 (1964-11-01), Keith
patent: 3584038 (1971-06-01), Barone et al.
patent: 3678106 (1972-07-01), Ager

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