Skip to Content
Find More Like This
Return to Search

RECOVERY AND PURIFICATION OF TRANSITION ELEMENTS

United States Patent Application

20160333442
A1
View the Complete Application at the US Patent & Trademark Office
The invention provides a continuous method for extracting transition metal, the method comprising: supplying a spent generator liquor comprising transition metal in highly alkaline solution; mixing the liquor with acid thereby generating a solution, wherein the transition metal resides within the solution; combining the solution with an organic liquid comprising tributyl phosphate or other neutral extractant to extract the transition metal within the organic liquid; washing the extracted transition metal in the organic liquid with acid so as to remove non-transition-metal salts from the organic liquid phase; and stripping the washed transition metal loadedorganic liquid phase with hydroxide, water or complexing agent to remove the transition metal from the organic phase.
Tkac, Peter (Naperville, IL), Vandegrift, III, George F. (Crest Hill, IL), Rotsch, David A. (Montgomery, IL)
UCHICAGO ARGONNE, LLC (Chicago IL)
14/ 826,334
August 14, 2015
CONTRACTUAL ORIGIN OF THE INVENTION [0002] The U.S. Government has rights in this invention pursuant to Contract No. DE-AC02-06CH11357 between the U.S. Department of Energy and UChicago Argonne, LLC, representing Argonne National Laboratory.