Process for producing highly pure 2,6-naphthalene dicarboxylic a

Details Process for producing highly pure 2,6-naphthalene dicarboxylic a Process for producing highly pure 2,6-naphthalene dicarboxylic a

1990-11-15

1991-11-26

Gray, Bruce

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

Organic compounds

Carboxylic acids and salts thereof

C07C 5706

Patent

active

050684108

ABSTRACT:
A process for producing highly pure 2,6-napthalene dicarboxylic acid, characterized by hydrolyzing 2,6-dimethyl naphthalene dicarboxylate more than 99% pure in an aqueous solution by using an aromatic poly-carboxylic acid as a catalyst is disclosed.

REFERENCES:
patent: 3856855 (1974-12-01), Yamashita et al.
patent: 4764638 (1988-08-01), Feld
patent: 4794195 (1988-12-01), Hayashi et al.
patent: 4886906 (1989-12-01), Tanaka et al.

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