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SIMPLE CHEMICAL METHOD FOR THE SEPARATION OF RARE EARTH METALS

United States Patent Application

20170204498
A1
View the Complete Application at the US Patent & Trademark Office
A method is provided for separating mixtures of different rare earth metals using a ligand having a size-sensitive molecular aperture. The present invention meets the needs in the field by providing method of separating and purifying rare earth metals. The object of this invention is to separate and purify rare earth metals, e.g., the more valuable Dy away from Nd, in mixtures containing such metals using a simple chemical process without the need for countercurrent liquid-liquid separations.
Schelter, Eric J. (Philadelphia, PA), Bogart, Justin A. (Brooklyn, NY)
15/ 321,209
July 29, 2015
GOVERNMENT LICENSE RIGHTS [0002] Pursuant to 35 U.S.C. .sctn.202(c), it is acknowledged that the U.S. Government has rights in the invention described herein, which was made with funds from the Research Corporation for Science Advancement (Cottrell Scholar Award to E.J.S.) and U.S. Department of Energy Grant Nos: DOE (DE-SC0006518).