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US 5,312,992 AGranted
Process for removing sulfur from organic sulfides
AssigneeElf Atochem North America, Inc.
InventorsRoger T. Clark, Michael J. Lindstrom, Glenn T. Carroll, Jeffrey H.-G. Yen
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Abstract
A process for removing sulfur from an organic sulfide containing three or more chemically bound sulfur atoms is disclosed wherein said sulfide is contacted with a defined catalyst at elevated temperature to increase the disproportionation rate and the corresponding sulfide of lower sulfur rank is continuously removed from the reaction zone.
Claims18
A process for decreasing the sulfur content of an organic sulfide which is one or more compounds having the formula:
- RSS.sub.a SR.sup.1
- where R and R.sup.1 are independently alkyl, aryl, alkaryl, hydroxyalkyl or alkoxyalkyl groups wherein the alkyl moieties have from 1 to 24 carbon atoms and .sub.a is an average number greater than 0 but no greater than 13, comprising contacting said organic sulfide at an elevated temperature with a catalyst having the capacity and in amount sufficient to increase the rate of disproportionation of said organic sulfide to thereby produce sulfur and a sulfide of reduced sulfur rank, and continuously removing said sulfide of reduced sulfur rank from the reaction zone.
Dependencies are inferred from the claim text.