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Title: Chemical research studies for the recovery of americium at Rocky Flats

Abstract

Americium is recovered from plutonium and pyrochemical waste salts at Rocky Flats by an aqueous chemical process. The process is a five-step operation: dissolution of the chloride salt, conversion from the chloride to the nitrate system by cation exchange, separation of plutonium by anion exchange, evaporation of the anion column effluent, and precipitation of americium as the oxalate. Recent research is discussed that shows the process can be improved through procedural modifications; for example: (1) by diluting the feed stream the selective sorption of the actinides by cation resin is increased, (2) by rinsing the cation resin with 1.5N nitric acid the carryover of impurities with the actinides is reduced, and (3) by lowering the molarity of the oxalate ion concentration and adding a small amount of chloride ion, during the oxalate precipitation step, the coprecipitation of lead impurity is reduced.

Authors:
Publication Date:
Research Org.:
Atomics International Div., Golden, CO (USA). Rocky Flats Plant
OSTI Identifier:
5780487
Report Number(s):
RFP-3036; CONF-800303-3
TRN: 80-002970
DOE Contract Number:  
EY-76-C-04-3533
Resource Type:
Conference
Resource Relation:
Conference: 179. national meeting of the American Chemical Society, Houston, TX, USA, 23 Mar 1980
Country of Publication:
United States
Language:
English
Subject:
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; 38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY; AMERICIUM; ION EXCHANGE; PRECIPITATION; PLUTONIUM; PURIFICATION; LEAD; OXALATES; RECOVERY; ROCKY FLATS PLANT; SALTS; ACTINIDES; CARBOXYLIC ACID SALTS; ELEMENTS; METALS; NATIONAL ORGANIZATIONS; SEPARATION PROCESSES; TRANSPLUTONIUM ELEMENTS; TRANSURANIUM ELEMENTS; US AEC; US DOE; US ERDA; US ORGANIZATIONS; 050800* - Nuclear Fuels- Spent Fuels Reprocessing; 400700 - Radiochemistry & Nuclear Chemistry

Citation Formats

Hagan, P G. Chemical research studies for the recovery of americium at Rocky Flats. United States: N. p., 1980. Web.
Hagan, P G. Chemical research studies for the recovery of americium at Rocky Flats. United States.
Hagan, P G. Tue . "Chemical research studies for the recovery of americium at Rocky Flats". United States. https://www.osti.gov/servlets/purl/5780487.
@article{osti_5780487,
title = {Chemical research studies for the recovery of americium at Rocky Flats},
author = {Hagan, P G},
abstractNote = {Americium is recovered from plutonium and pyrochemical waste salts at Rocky Flats by an aqueous chemical process. The process is a five-step operation: dissolution of the chloride salt, conversion from the chloride to the nitrate system by cation exchange, separation of plutonium by anion exchange, evaporation of the anion column effluent, and precipitation of americium as the oxalate. Recent research is discussed that shows the process can be improved through procedural modifications; for example: (1) by diluting the feed stream the selective sorption of the actinides by cation resin is increased, (2) by rinsing the cation resin with 1.5N nitric acid the carryover of impurities with the actinides is reduced, and (3) by lowering the molarity of the oxalate ion concentration and adding a small amount of chloride ion, during the oxalate precipitation step, the coprecipitation of lead impurity is reduced.},
doi = {},
url = {https://www.osti.gov/biblio/5780487}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1980},
month = {1}
}

Conference:
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