Liquid purification or separation – Processes – Liquid/liquid solvent or colloidal extraction or diffusing...
Patent
1990-10-02
1992-10-13
Dawson, Robert A.
Liquid purification or separation
Processes
Liquid/liquid solvent or colloidal extraction or diffusing...
2082621, 2082625, 210634, 210738, 210804, 210805, 210806, 210908, 210909, B01D 1100, C02F 126
Patent
active
051548313
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, and wherein the solvent for the oily material ranges in solubility in water from sparingly soluble to substantially water insoluble, in the presence of an added comminuting and dispersing surfactant, to produce by such contacting at least one phase differentiating interface, and to thereby render one or more of the components of the oily substrate separable.
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Darian Saeed T.
Weinberg Stephen P.
Dawson Robert A.
Drodge Joseph
Ensr Corporation
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