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Title: Status of Americium-241 recovery at Rocky Flats Plant

Abstract

This paper is presented in two parts: Part I, Molten Salt Extraction of Americium from Molten Plutonium Metal, and Part II, Aqueous Recovery of Americium from Extraction Salts. The Rocky Flats recovery process used for waste salts includes (1) dilute hydrochloric acid dissolution of residues; (2) cation exchange to convert from the chloride to the nitrate system and to remove gross amounts of monovalent impurities; (3) anion exchange separation of plutonium; (4) oxalate precipitation of americium; and (5) calcination of the oxalate at 600/sup 0/C to yield americium oxide. The aqueous process portion describes attempts to improve the recovery of americium. The first part deals with modifications to the cation exchange step; the second describes development of a solvent extractions process that will recovery americium from residues containing aluminium as well as other common impurities. Results of laboratory work are described. 3 figures, 6 tables. (DP)

Authors:
; ; ;
Publication Date:
Research Org.:
Rockwell International, Golden, CO
OSTI Identifier:
6179482
Resource Type:
Journal Article
Journal Name:
ACS Symp. Ser.; (United States)
Additional Journal Information:
Journal Volume: 161
Country of Publication:
United States
Language:
English
Subject:
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY; AMERICIUM 241; ISOTOPE PRODUCTION; ROCKY FLATS PLANT; AMERICIUM OXIDES; ANIONS; CALCINATION; CATIONS; DISSOLUTION; EXTRACTION; ION EXCHANGE; PLUTONIUM; PRECIPITATION; RECOVERY; SOLVENT EXTRACTION; ACTINIDE COMPOUNDS; ACTINIDE ISOTOPES; ACTINIDE NUCLEI; ACTINIDES; ALPHA DECAY RADIOISOTOPES; AMERICIUM COMPOUNDS; AMERICIUM ISOTOPES; CHALCOGENIDES; CHARGED PARTICLES; CHEMICAL REACTIONS; DECOMPOSITION; ELEMENTS; HEAVY NUCLEI; IONS; ISOTOPES; METALS; NATIONAL ORGANIZATIONS; NUCLEI; ODD-EVEN NUCLEI; OXIDES; OXYGEN COMPOUNDS; PYROLYSIS; RADIOISOTOPES; SEPARATION PROCESSES; THERMOCHEMICAL PROCESSES; TRANSPLUTONIUM COMPOUNDS; TRANSURANIUM COMPOUNDS; TRANSURANIUM ELEMENTS; US AEC; US DOE; US ERDA; US ORGANIZATIONS; YEARS LIVING RADIOISOTOPES; 400703* - Radiochemistry & Nuclear Chemistry- Radioisotope Production

Citation Formats

Knighton, J B, Hagan, P G, Navratil, J D, and Thompson, G H. Status of Americium-241 recovery at Rocky Flats Plant. United States: N. p., 1981. Web. doi:10.1021/bk-1981-0161.ch004.
Knighton, J B, Hagan, P G, Navratil, J D, & Thompson, G H. Status of Americium-241 recovery at Rocky Flats Plant. United States. doi:10.1021/bk-1981-0161.ch004.
Knighton, J B, Hagan, P G, Navratil, J D, and Thompson, G H. Thu . "Status of Americium-241 recovery at Rocky Flats Plant". United States. doi:10.1021/bk-1981-0161.ch004.
@article{osti_6179482,
title = {Status of Americium-241 recovery at Rocky Flats Plant},
author = {Knighton, J B and Hagan, P G and Navratil, J D and Thompson, G H},
abstractNote = {This paper is presented in two parts: Part I, Molten Salt Extraction of Americium from Molten Plutonium Metal, and Part II, Aqueous Recovery of Americium from Extraction Salts. The Rocky Flats recovery process used for waste salts includes (1) dilute hydrochloric acid dissolution of residues; (2) cation exchange to convert from the chloride to the nitrate system and to remove gross amounts of monovalent impurities; (3) anion exchange separation of plutonium; (4) oxalate precipitation of americium; and (5) calcination of the oxalate at 600/sup 0/C to yield americium oxide. The aqueous process portion describes attempts to improve the recovery of americium. The first part deals with modifications to the cation exchange step; the second describes development of a solvent extractions process that will recovery americium from residues containing aluminium as well as other common impurities. Results of laboratory work are described. 3 figures, 6 tables. (DP)},
doi = {10.1021/bk-1981-0161.ch004},
journal = {ACS Symp. Ser.; (United States)},
number = ,
volume = 161,
place = {United States},
year = {1981},
month = {1}
}