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Title: SEPARATION OF EUROPIUM FROM OTHER LANTHANIDE RAE EARTHS BY SOLVENT EXTRACTION

Abstract

This patent deals with a process of separating europium from other lanthanides present in aqueous hydrochloric or sulfuric acid solutions. The europium is selectively reduced to the divalent state with a divalent chromium salt formed in situ from chromium(III) salt plus zinc amalgam. The other trivalent lanthanides are then extracted away from the divalent europium with a nitrogen-flushed phosphoric acid ester or a phosphonic acid ester. (AEC)

Inventors:
; ;
Publication Date:
Research Org.:
Originating Research Org. not identified
OSTI Identifier:
4707372
Patent Number(s):
US 3077378
Assignee:
U.S. Atomic Energy Commission DTIE; NSA-17-012386
NSA Number:
NSA-17-012386
Resource Type:
Patent
Resource Relation:
Other Information: Orig. Receipt Date: 31-DEC-63
Country of Publication:
United States
Language:
English
Subject:
CHEMISTRY; CHROMIUM COMPOUNDS; ESTERS; EUROPIUM; HYDROCHLORIC ACID; MERCURY ALLOYS; PHOSPHORIC ACID; RARE EARTHS; REDUCTION; SEPARATION PROCESSES; SOLUTIONS; SOLVENT EXTRACTION; SULFURIC ACID; WATER; ZINC ALLOYS

Citation Formats

Peppard, D.F., Horwitz, E.P., and Mason, G.W. SEPARATION OF EUROPIUM FROM OTHER LANTHANIDE RAE EARTHS BY SOLVENT EXTRACTION. United States: N. p., 1963. Web.
Peppard, D.F., Horwitz, E.P., & Mason, G.W. SEPARATION OF EUROPIUM FROM OTHER LANTHANIDE RAE EARTHS BY SOLVENT EXTRACTION. United States.
Peppard, D.F., Horwitz, E.P., and Mason, G.W. Tue . "SEPARATION OF EUROPIUM FROM OTHER LANTHANIDE RAE EARTHS BY SOLVENT EXTRACTION". United States. doi:.
@article{osti_4707372,
title = {SEPARATION OF EUROPIUM FROM OTHER LANTHANIDE RAE EARTHS BY SOLVENT EXTRACTION},
author = {Peppard, D.F. and Horwitz, E.P. and Mason, G.W.},
abstractNote = {This patent deals with a process of separating europium from other lanthanides present in aqueous hydrochloric or sulfuric acid solutions. The europium is selectively reduced to the divalent state with a divalent chromium salt formed in situ from chromium(III) salt plus zinc amalgam. The other trivalent lanthanides are then extracted away from the divalent europium with a nitrogen-flushed phosphoric acid ester or a phosphonic acid ester. (AEC)},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Feb 12 00:00:00 EST 1963},
month = {Tue Feb 12 00:00:00 EST 1963}
}