Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acids and salts thereof
Patent
1976-04-14
1978-11-21
Siegel, A.
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acids and salts thereof
562416, C07C 5142
Patent
active
041266382
ABSTRACT:
A benzene dicarboxylic acid is purified by heating a solution thereof to 110.degree. - 350.degree. C in the presence of a hydrogenation catalyst; the solvent is a mixture of water with a secondary or tertiary alcohol.
REFERENCES:
patent: 2840604 (1958-06-01), Feighner et al.
patent: 3020312 (1962-02-01), Moscrip
patent: 3456001 (1969-07-01), Olsen
patent: 3584039 (1971-06-01), Meyer
patent: 3637831 (1972-01-01), Remsberg
Alagy Jacques
Busson Christian
Cessou Maurice
Institut Francais du Pe'trole
Siegel A.
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