Process for producing 2,6-napthalene dicarboxylic acid

Details Process for producing 2,6-napthalene dicarboxylic acid Process for producing 2,6-napthalene dicarboxylic acid

1991-01-25

1992-05-05

Dees, Jose G.

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

Organic compounds

Carboxylic acids and salts thereof

562416, 562488, C07C 51265

Patent

active

051109824

ABSTRACT:
A process for producing 2,6-naphthalene dicarboxlic acid which comprises oxidizing a 2-alkyl-6-acyl naphthalene with molecular oxygen-containing gas in the presence of a catalyst containing cobalt, manganese and bromine in an acetic acid solvent, characterized in that the oxygen concentration in the exhaust gas is controlled so as to satisfy the following equation:

REFERENCES:
patent: 3856858 (1974-12-01), Dighe et al.
patent: 4764638 (1988-08-01), Feld
patent: 4886906 (1989-12-01), Tanaka et al.

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