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Method embodiments for making lanthanide metal complexes from lanthanide metal oxides and separating the same from heavy lanthanide metal oxides, actinide oxides, and non-lanthanide rare earth element oxides

Patent ·
OSTI ID:1998396
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The present disclosure is directed to method embodiments for making anhydrous lanthanide halide complexes. At least some embodiments comprise making a lanthanide halide complex by reacting a lanthanide metal oxide with an oxygen scavenger and catalyst in the presence of a donor solvent. The method is selective toward light lanthanide metal oxides and thus further provides a method for separating light lanthanide metal oxides from heavy lanthanide metal oxides, actinide oxides, and non-lanthanide rare earth element oxides.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
DOE Contract Number:
89233218CNA000001
Assignee:
Triad National Security, LLC (Los Alamos, NM)
Patent Number(s):
11,654,424
Application Number:
16/898,253
OSTI ID:
1998396
Country of Publication:
United States
Language:
English

References (9)

Permanent magnet materials based on the rare earth-iron-boron tetragonal compounds journal September 1984
Solvation coordination compounds of scandium chloride from the dehydration of scandium chloride hexahydrate journal November 2021
Anhydrous scandium, yttrium, lanthanide and actinide halide complexes with neutral oxygen and nitrogen donor ligands journal October 2008
Syntheses of lanthanide bromide complexes from oxides and the crystal structures of [LnBr3(DME)2] (Ln=Pr, Nd, Sm, Eu), [LnBr3(THF)4] (Ln=Pr, Sm) and [EuBr2(THF)5][EuBr4(THF)2] journal September 2004
Synthese und Kristallstruktur von bis‐1, 3‐Dimethoxyethan‐trichloro‐samarium(III) und tris‐N, N‐Diisopropylcarbamato‐samarium(III) journal January 2003
Lanthanide(III)chloride-tetrahydrofuran solvates: structural patterns within the series LnCl3(THF)n, where n = 2,3,3.5 and 4: crystal and molecular structures of [PrCl(μ-Cl)2(THF)2]n, [Nd(μ-Cl)3(H2O)(THF)]n and GdCl3(THF)4 journal January 1997
Synthesis of anhydrous lanthanidechloride complexes from oxides and the crystal structure of[GdCl3(thf )2(tmeda)] journal December 1998
Synthese und Kristallstrukturen der Seltenerd-Komplexe [LaI2(THF)5]+I3?, [SmCl3(THF)4], [ErCl2(THF)5]+ [ErCl4(THF)2]?, [ErCl3(DME)2] und [Na(18-Krone-6)(THF)2]+ [YbBr4(THF)2]? journal September 1997
The mononuclear and dinuclear dimethoxyethane adducts of lanthanide trichlorides [LnCl3(DME)2]n, n=1 or 2, fundamental starting materials in lanthanide chemistry: preparation and structures journal March 2004

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