Method for selective extraction

Liquid purification or separation – Processes – Liquid/liquid solvent or colloidal extraction or diffusing...

Reexamination Certificate

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Details

C210S702000, C210S738000, C210S799000, C556S466000

Reexamination Certificate

active

07413657

ABSTRACT:
A process for the extraction of an unwanted material from a fluid containing the unwanted material comprising the steps of introducing an immiscible extraction fluid into the fluid having an unwanted material therein to form a plurality of extraction fluid droplets in the fluid, allowing the plurality of extraction fluid droplets to hydrophilicly interact with the unwanted material in the fluid to cause the extraction fluid droplets to form into a plurality of coalesceable droplets, coalescing the coalesceable droplets into larger droplets containing the unwanted material, and separating the larger droplets containing the unwanted material from the fluid.

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patent: 3561193 (1971-02-01), Baranowski
patent: 5206330 (1993-04-01), Kobayashi et al.
patent: 5358614 (1994-10-01), Scott et al.
patent: 5401821 (1995-03-01), Geck et al.
patent: 5458752 (1995-10-01), Lizama et al.
patent: 5548053 (1996-08-01), Weidner et al.
patent: 5968812 (1999-10-01), Mrachko
patent: 6413429 (2002-07-01), Breman et al.
patent: 1443704 (1976-07-01), None

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