Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acids and salts thereof
Patent
1978-02-22
1979-10-16
Killos, Paul J.
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acids and salts thereof
562477, C07C 6510
Patent
active
041714539
ABSTRACT:
A dry alkali metal phenate can be more efficiently carbonated with carbon dioxide under pressure to an alkali metal carboxylate of a phenol, if the phenate is finely divided and the temperature during carbonation is maintained below about 135.degree. C. until at least about 25 mole percent of the carbon dioxide theoretically necessary to achieve complete carbonation is absorbed by the phenate. This method of carbonation is particularly useful to produce the sodium salt of salicylic acid.
REFERENCES:
encyclopedia of Chem. Technology, vol. 17, (1968).
Chem. Reviews, 57:583-620, 1957.
Chem. Abst. 70:37 482e (1969).
Chem. Abst. 123977y, Fr. 1,539,527.
Briggs Roger L.
McDonald David C.
Moore Eugene R.
Willner Joseph
Glenn Michael L.
Killos Paul J.
The Dow Chemical Company
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