Solvent extraction process for treatment of oily substrates
AssigneeENSR Corporation
InventorsSaeed T. Darian, Stephen P. Weinberg
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Abstract
The present invention is directed to a process for treating an oily substrate, including a mixture comprising water and oily material or a mixture comprising water, solids and oily material as components, and wherein such treatment comprises contacting the oily substrate with a solvent for the oily material, a comminuting surfactant, and a flocculant, wherein said solvent for said oily material ranges in solubility in water from sparingly soluble to substantially water insoluble, to produce at least one phase differentiating interface and to thereby render one or more components of said oily substrate separable.
Claims33
A process for treating an oily substrate selected from the group consisting of a mixture comprising water and oily material and a mixture comprising water, solids and oily material as components of said substrate, said process comprising:
- contacting said oily substrate with a solvent for said oily material, a comminuting and dispersing surfactant for said oily substrate and a flocculant, wherein said solvent for said oily material ranges in solubility in water from sparingly soluble to substantially water insoluble, to produce at least one phase differentiating interface and to thereby render one or more components of said oily substrate separable at a rate faster than in the absence of said flocculant.
Dependencies are inferred from the claim text.