Process for the production of lower dialkyl disulphides
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United States of America Patent
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Mar 19, 1991
Grant Date -
N/A
app pub date -
Apr 3, 1989
filing date -
Apr 14, 1988
priority date (Note) -
Expired
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Abstract
The invention relates to the production of dialkyl disulphides of the R-SS-R type where R represents an alkyl radical having from 1 to 3 carbon atoms, by oxidation of the corresponding alkyl mercaptan R--SH by sulphur in the presence of a catalyst. A combination of an alkyl mercantap R'--SH with an alkylene oxide and an alkaline base is used as catalyst, R' representing an alkyl radical having from 6 to 18 carbon atoms. This catalyst enables a lower dialkyl disulphide of excellent quality to be obtained (absence of amine and coloration).
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