| 摘要 |
A method of removing metal alkaryl sulfonates from a hydrocarbon solution is disclosed. Briefly, the method comprises (a) contacting the hydrocarbon solution containing metal alkaryl sulfonates with an aqueous basic solution containing a "recovery" surfactant, (b) forming a hydrocarbon phase and an aqueous phase containing metal alkaryl sulfonates and (c) separating the hydrocarbon phase and the aqueous phase.
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