Process for the preparation of epsilon-caprolactone
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United States of America Patent
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Feb 19, 1991
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N/A
app pub date -
Jul 12, 1989
filing date -
Jan 15, 1982
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Expired
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Abstract
Process for manufacturing .SIGMA.- caprolactone by oxidation of cyclohexanone by means of a crude C.sub.2 -C.sub.4 percarboxylic acid solution, resulting from the reaction of hydrogen peroxide on the corresponding carboxylic acid in the presence of a weak acid catalyst, with continuous elimination of water by azeotropic entrainment, characterized in that the molar ratio of cyclohexanone used to the percarboxylic acid is between about 0.50 to 0.99.
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