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:
- Issue Date:
- Research Org.:
- Originating Research Org. not identified
- OSTI Identifier:
- 4707372
- Patent Number(s):
- 3077378
- Assignee:
- U.S. Atomic Energy Commission
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01F - COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- 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.
@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 = {1963},
month = {2}
}