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Title: Pilot-scale production of dicesium hexachloroplutonate (Cs/sub 2/PuCl/sub 6/) and filtrate recovery

Abstract

The Rocky Flats Plant is introducing the use of dicesium hexachloroplutonate (DCHP) into the Molten Salt Extraction Process (MSE). DCHP (Cs/sub 2/PuCl/sub 6/) extracts americium from molten plutonium metal into a molten calcium chloride matrix. The DCHP is produced by precipitating plutonium (IV) from hydrochloric acid with cesium chloride. Before production of the DCHP began, we performed a pilot-scale test to determine yields, track impurities, and test filtrate recovery for the proposed process. In the course of this study, we determined that impure plutonium oxide (0.80 g/g) dissolved in concentrated HCl is an acceptable source of plutonium for the DCHP. We also determined that dissolved oxide and chloride anion exchange eluate can be mixed for DCHP preparation. We found that DCHP yields average 92-95% at 8M total chloride and are independent of sparging rate and time. Furthermore, we found that drying at 150/degree/C for 5 hr gives <0.1% water in the DCHP only if it is preceeded by extensive air drying. Finally, we proved the efficiency of chloride anion exchange for the recovery of above-discard plutonium from the filtrate. 11 refs., 1 fig., 11 tabs.

Authors:
; ; ; ;
Publication Date:
Research Org.:
Rockwell International Corp., Golden, CO (USA). Rocky Flats Plant
OSTI Identifier:
6107759
Report Number(s):
RFP-4317; CONF-8905122-4
ON: DE89013523
DOE Contract Number:  
AC04-76DP03533
Resource Type:
Conference
Resource Relation:
Conference: 13. actinide separations conference, Idaho Falls, ID, USA, 1 May 1989; Other Information: Portions of this document are illegible in microfiche products
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; AMERICIUM; SEPARATION PROCESSES; PLUTONIUM; CESIUM COMPOUNDS; DISSOLUTION; EXTRACTION; HYDROCHLORIC ACID; IMPURITIES; ION EXCHANGE; OXIDATION; PLUTONIUM CHLORIDES; PRECIPITATION; ACTINIDE COMPOUNDS; ACTINIDES; ALKALI METAL COMPOUNDS; CHEMICAL REACTIONS; CHLORIDES; CHLORINE COMPOUNDS; ELEMENTS; HALIDES; HALOGEN COMPOUNDS; HYDROGEN COMPOUNDS; INORGANIC ACIDS; METALS; PLUTONIUM COMPOUNDS; TRANSPLUTONIUM ELEMENTS; TRANSURANIUM COMPOUNDS; TRANSURANIUM ELEMENTS; 400105* - Separation Procedures; 050700 - Nuclear Fuels- Fuels Production & Properties

Citation Formats

Muscatello, A C, Stevens, J R, Killion, M E, Valdez, J D, and Ames, R L. Pilot-scale production of dicesium hexachloroplutonate (Cs/sub 2/PuCl/sub 6/) and filtrate recovery. United States: N. p., 1989. Web.
Muscatello, A C, Stevens, J R, Killion, M E, Valdez, J D, & Ames, R L. Pilot-scale production of dicesium hexachloroplutonate (Cs/sub 2/PuCl/sub 6/) and filtrate recovery. United States.
Muscatello, A C, Stevens, J R, Killion, M E, Valdez, J D, and Ames, R L. 1989. "Pilot-scale production of dicesium hexachloroplutonate (Cs/sub 2/PuCl/sub 6/) and filtrate recovery". United States. https://www.osti.gov/servlets/purl/6107759.
@article{osti_6107759,
title = {Pilot-scale production of dicesium hexachloroplutonate (Cs/sub 2/PuCl/sub 6/) and filtrate recovery},
author = {Muscatello, A C and Stevens, J R and Killion, M E and Valdez, J D and Ames, R L},
abstractNote = {The Rocky Flats Plant is introducing the use of dicesium hexachloroplutonate (DCHP) into the Molten Salt Extraction Process (MSE). DCHP (Cs/sub 2/PuCl/sub 6/) extracts americium from molten plutonium metal into a molten calcium chloride matrix. The DCHP is produced by precipitating plutonium (IV) from hydrochloric acid with cesium chloride. Before production of the DCHP began, we performed a pilot-scale test to determine yields, track impurities, and test filtrate recovery for the proposed process. In the course of this study, we determined that impure plutonium oxide (0.80 g/g) dissolved in concentrated HCl is an acceptable source of plutonium for the DCHP. We also determined that dissolved oxide and chloride anion exchange eluate can be mixed for DCHP preparation. We found that DCHP yields average 92-95% at 8M total chloride and are independent of sparging rate and time. Furthermore, we found that drying at 150/degree/C for 5 hr gives <0.1% water in the DCHP only if it is preceeded by extensive air drying. Finally, we proved the efficiency of chloride anion exchange for the recovery of above-discard plutonium from the filtrate. 11 refs., 1 fig., 11 tabs.},
doi = {},
url = {https://www.osti.gov/biblio/6107759}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1989},
month = {3}
}

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