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A method for separating water soluble organics from a process stream by aqueous biphasic extraction [electronic resource].

Published:
Washington, D.C. : United States. Dept. of Energy, 1997.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description:
33 pages : digital, PDF file
Additional Creators:
Argonne National Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary:
The present invention relates to a method for separating water-miscible organic species from a process stream by aqueous biphasic extraction. In particular, the method includes extracting the organic species into a polymer-rich phase of an aqueous biphase system in which the process stream comprises the salt-rich phase, and, next, separating the polymer from the extracted organic species by contacting the loaded, polymer-rich phase with a water-immiscible organic phase. Alternatively, the polymer can be separated from the extracted organic species by raising the temperature of the loaded, polymer-rich phase above the cloud point, such that the polymer and the water-soluble organic species separate into two distinct aqueous phases. In either case, a substantially salt-free, concentrated aqueous solution containing the organic species is recovered.
Report Numbers:
E 1.99:patents-us--a8873297
patents-us--a8873297
Subject(s):
Other Subject(s):
Note:
Published through SciTech Connect.
12/01/1997.
"patents-us--a8873297"
"US patent application 8-873,297"
Chaiko, David J.; Mego, William A.
Funding Information:
W-31109-ENG-38
View MARC record | catkey: 14073986