Mixed branched eicosyl polysulfide compositions and methods of making same
AssigneeChevron Phillips Chemical Company LP
InventorsJason L. Kreider, R. Shawn Childress, Michael S. Matson, Jim D. Byers
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Abstract
A composition comprising polysulfides, wherein at least about 50 wt. % of the polysulfides are branched C20 to C60 polysulfides represented by general formula R15S1—[S]n—S2R16 wherein R15 and R16 are each independently a branched C10 to C30 alkyl group and wherein n is an integer from 1 to 10. A process of producing a polysulfides crude product comprising one or more branched C20 to C60 polysulfides comprising: (A) reacting a feedstock comprising one or more branched C10 to C30 mercaptans and sulfur in the presence of a catalyst and (B) collecting the polysulfides crude product.
Claims32
A process of producing a polysulfides crude product comprising one or more branched C20 to C60 polysulfides comprising:
- (A) reacting a feedstock comprising one or more branched C10 to C30 mercaptans and sulfur in the presence of a catalyst and (B) collecting the polysulfides crude product, and wherein (A) reacting further comprises:
- (a) contacting the one or more branched C10 to C30 mercaptans and the catalyst to form a mixture wherein a weight ratio of catalyst to mercaptans is in a range of from about 0.005:1 to about 0.013:1;
- (b) heating the mixture to a temperature in a range of from about 60° C. to about 85° C.;
- (c) heating the mixture to a temperature in a range of from about 90° C. to about 150° C.;
- and
- (d) cooling the mixture to a temperature in a range of from about 65° C. to about 85° C.
A process of producing a polysulfides crude product comprising one or more branched C20 to C60 polysulfides comprising:
- (A) reacting a feedstock comprising one or more branched C10 to C30 mercaptans and sulfur in the presence of a catalyst and (B) collecting the polysulfides crude product, and wherein (B) collecting the polysulfides crude product further comprises:
- (e) cooling the mixture to a temperature in a range of from about 20° C. to about 35° C.;
- and
- (f) filtering the polysulfides crude product.
Dependencies are inferred from the claim text.