Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1990-02-12
1991-07-09
Siegel, Alan
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
C07D33348
Patent
active
050307371
ABSTRACT:
A process for converting a sulfolene feed, containing contaminating amounts of sulfur dioxide, to a sulfolane product in which the sulfolene feed is dissolved in a solvent selected from the group consisting of alcohols and ketones having at least six carbon atoms per molecule, slight solubility in water and a boiling point significantly above 100.degree. C., the thus formed sulfolene solution is distilled to reduce the sulfur dioxide content, the sulfolene solution and hydrogen are contacted with a hydrogenation catalyst to convert the sulfolene feed to a sulfolane product and the sulfolane product is recovered from the effluent of the contacting step.
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Phillips Petroleum Company
Siegel Alan
Stewart Charles W.
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