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US 12,391,867 B2Granted
Olefin sulfonates
AssigneesChevron Oronite Company LLC, Chevron U.S.A. Inc.
InventorsAndrew M. Thomas, Curtis B. Campbell, Gayani W. Pinnawala, Varadarajan Dwarakanath, Andrew M. Davidson, Ping Wang
Life of this patent
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Abstract
The present disclosure is directed to surfactants (in particular olefin sulfonates), surfactant packages, compositions derived thereof, and uses thereof in hydrocarbon recovery. Methods of making olefin sulfonate surfactants are also described.
Claims11
A surfactant composition comprising:
- an olefin sulfonate, wherein the olefin sulfonate is a propylene oligomer comprising one or more sulfonate groups and wherein the propylene oligomer has an average total branching of about 3 to about 15 per molecule.
A concentrated surfactant composition comprising:
- an olefin sulfonate, wherein the olefin sulfonate is a propylene oligomer comprising one or more sulfonate groups, the propylene oligomer having an average total branching of about 3 to about 15, and wherein the olefin sulfonate is present in about 10 wt % to about 95 wt %, based on the total weight of the concentrated surfactant composition.
Dependencies are inferred from the claim text.