Process for producing 2,6-naphthalenedicarboxylic acid

Details Process for producing 2,6-naphthalenedicarboxylic acid Process for producing 2,6-naphthalenedicarboxylic acid

1986-04-18

1987-12-29

Lone, Werren B.

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

Organic compounds

Carboxylic acids and salts thereof

562417, 562421, 562488, C07C 51265

Patent

active

047162457

ABSTRACT:
A process for producing 2,6-naphthalenedicarboxylic acid which comprises oxidizing 2,6-diisopropylnaphthalene or its oxidation derivative with molecular oxygen in a reaction medium containing at least 70% by weight of an aliphatic monocarboxylic acid selected from actic acid, propionic acid and a mixture of these in the presence of an oxidation catalyst comprising (A) at least one compound of a heavy metal element selected from cobalt and manganese and (B) bromine or a bromine compound; characterized in that said oxidation is carried out in the presence of 1.1 to 15 gram-atoms, per gram-atom of bromine, of an alkali metal.

REFERENCES:
patent: 3846487 (1974-11-01), Shigeyasu et al.
patent: 3856855 (1974-12-01), Yamashito et al.
patent: 3870754 (1975-03-01), Yamashito et al.

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