Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acids and salts thereof
Patent
1996-04-01
1997-05-27
Shippen, Michael L.
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acids and salts thereof
C07C 6104
Patent
active
056334010
ABSTRACT:
Disclosed is a process for the conversion of off-color cyclopropanecarboxylic acid (CPC-Acid) to CPC-Acid having a color value (platinum-cobalt scale) of less than about 10 by the steps of (1) heating off-color CPC-Acid produced by the oxidation of cyclopropanecarboxaldehyde with molecular oxygen with a strong acid; and (2) distilling the mixture of step (1) to obtain CPC-Acid having a color value of less than about 10 as the distillate product.
REFERENCES:
patent: 5504245 (1996-04-01), Laing
Liang Shaowo
Price Timothy W.
Eastman Chemical Company
Gwinnell Harry J.
Shippen Michael L.
Thomsen J. Frederick
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