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Method for solvent extraction with near-equal density solutions

United States Patent

March 20, 2001
View the Complete Patent at the US Patent & Trademark Office
Oak Ridge National Laboratory - Visit the Partnerships Directorate Website
Disclosed is a modified centrifugal contactor for separating solutions of near equal density. The modified contactor has a pressure differential establishing means that allows the application of a pressure differential across fluid in the rotor of the contactor. The pressure differential is such that it causes the boundary between solutions of near-equal density to shift, thereby facilitating separation of the phases. Also disclosed is a method of separating solutions of near-equal density.
Birdwell; Joseph F. (Knoxville, TN), Randolph; John D. (Maryville, TN), Singh; S. Paul (Oak Ridge, TN)
UT-Battelle, LLC (Oak Ridge, TN)
09/ 291,861
April 14, 1999
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT This invention was made as a result of work under Contract No. DE-AC05-96OR22464 between Oak Ridge National Laboratory, managed by Lockheed Martin Energy Research Corporation and the United States Department of Energy. The United States Government may have certain rights in this invention.