Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acids and salts thereof
Patent
1986-07-15
1987-11-24
Moyer, Donald B.
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acids and salts thereof
562408, 562416, 562418, 562421, 568321, 568432, 568565, 568808, C07C 51265, C07C 5116, C07C 5123
Patent
active
047090880
ABSTRACT:
A process for producing 2,6-naphthalenedicarboxylic acid which comprises oxidizing 2,6-diisopropylnaphthalene or its oxidation product as a starting material with molecular oxygen in a reaction medium containing at least 50% by weight of an aliphatic monocarboxylic acid having not more than 3 carbon atoms in the presence of an oxidation catalyst comprising (A) at least one heavy metal element selected from the group consisting of cobalt and manganese, and (B) bromine element, the 2,6-diisopropylnaphthalene and/or its oxidation product being used in a proportion of 0.1 to 5 moles per gram-atom of the heavy metal element of the oxidation catalyst.
REFERENCES:
patent: 3870754 (1975-03-01), Yamashita et al.
patent: 3970696 (1976-07-01), Shigeyasu et al.
patent: 4314073 (1982-02-01), Crooks
Amemiya Tamio
Hirose Isao
Sakai Tokuji
Moyer Donald B.
Scott Patricia M.
Teijin Petrochemical Industries Ltd.
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