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Extractant compositions for co-extracting cesium and strontium, a method of separating cesium and strontium from an aqueous feed, and calixarene compounds

United States Patent

April 17, 2012
View the Complete Patent at the US Patent & Trademark Office
Idaho National Laboratory - Visit the Technology Transfer and Commercialization Office Website
A mixed extractant solvent that includes at least one dialkyloxycalix[4]arenebenzocrown-6 compound, 4',4',(5')-di-(t-butyldicyclohexano)-18-crown-6, at least one modifier, and, optionally, a diluent. The dialkyloxycalix[4]arenebenzocrown-6 compound is 1,3-alternate-25,27-di(octyloxy)calix[4]arenebenzocrown-6, 1,3-alternate-25,27-di(decyloxy)calix[4]arenebenzocrown-6, 1,3-alternate-25,27-di(dodecyloxy)calix[4]arenebenzocrown-6, 1,3-alternate-25,27-di(2-ethylhexyl-1-oxy)calix[4]arenebenzocrown-6, 1,3-alternate-25,27-di(3,7-dimethyloctyl-1-oxy)calix[4]arenebenzocrown-6, 1,3-alternate-25,27-di(4-butyloctyl-1-oxy)calix[4]arenebenzocrown-6, or combinations thereof. The modifier is a primary alcohol. A method of separating cesium and strontium from an aqueous feed is also disclosed, as are dialkyloxycalix[4]arenebenzocrown-6 compounds and an alcohol modifier.
Peterman; Dean R. (Idaho Falls, ID), Meikrantz; David H. (Idaho Falls, ID), Law; Jack D. (Pocatello, ID), Riddle; Catherine L. (Idaho Falls, ID), Todd; Terry A. (Firth, ID), Greenhalgh; Mitchell R. (Iona, ID), Tillotson; Richard D. (Moore, ID), Bartsch; Richard A. (Lubbock, TX), Moyer; Bruce A. (Oak Ridge, TN), Delmau; Laetitia H. (Oak Ridge, TN), Bonnesen; Peter V. (Knoxville, TN)
Battelle Energy Alliance, LLC (Idaho Falls, ID)
12/ 268,189
November 10, 2008
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT This invention was made with government support under Contract No. DE-AC07-99ID13727 and Contract No. DE-AC07-05-ID14517 awarded by the United States Department of Energy The government has certain rights in the invention.