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Title: Nitrate Anion Exchange in Pu-238 Aqueous Scrap Recovery Operations

Abstract

Strong base, nitrate anion exchange (IX) is crucial to the purification of {sup 238}Pu solution feedstocks with gross levels of impurities. This paper discusses the work involved in bench scale experiments to optimize the nitrate anion exchange process. In particular, results are presented of experiments conducted to (a) demonstrate that high levels of impurities can be separated from {sup 238}Pu solutions via nitrate anion exchange and, (b) work out chemical pretreatment methodology to adjust and maintain {sup 238}Pu in the IV oxidation state to optimize the Pu(IV)-hexanitrato anionic complex sorption to Reillex-HPQ resin. Additional experiments performed to determine the best chemical treatment methodology to enhance recovery of sorbed Pu from the resin, and VIS-NIR absorption studies to determine the steady state equilibrium of Pu(IV), Pu(III), and Pu(VI) in nitric acid are discussed.

Authors:
; ; ;
Publication Date:
Research Org.:
Los Alamos National Lab., NM (US)
Sponsoring Org.:
USDOE Office of Nuclear Energy, Science and Technology (NE) (US)
OSTI Identifier:
759219
Report Number(s):
LA-UR-98-4392
TRN: US0004322
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Conference
Resource Relation:
Conference: Institute for Space and Nuclear Power Studies Space Technology and Applications International Forum (STAIF-99), Albuquerque, NM (US), 01/31/1999--02/04/1999; Other Information: PBD: 31 Jan 1999
Country of Publication:
United States
Language:
English
Subject:
12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; NITRATES; NITRIC ACID; MATERIALS RECOVERY; SCRAP METALS; ION EXCHANGE MATERIALS; PLUTONIUM 238; NESDPS Office of Nuclear Energy Space and Defense Power Systems

Citation Formats

Pansoy-Hjelvik, M E, Silver, G L, Reimus, M A.H., and Ramsey, K B. Nitrate Anion Exchange in Pu-238 Aqueous Scrap Recovery Operations. United States: N. p., 1999. Web.
Pansoy-Hjelvik, M E, Silver, G L, Reimus, M A.H., & Ramsey, K B. Nitrate Anion Exchange in Pu-238 Aqueous Scrap Recovery Operations. United States.
Pansoy-Hjelvik, M E, Silver, G L, Reimus, M A.H., and Ramsey, K B. Sun . "Nitrate Anion Exchange in Pu-238 Aqueous Scrap Recovery Operations". United States. https://www.osti.gov/servlets/purl/759219.
@article{osti_759219,
title = {Nitrate Anion Exchange in Pu-238 Aqueous Scrap Recovery Operations},
author = {Pansoy-Hjelvik, M E and Silver, G L and Reimus, M A.H. and Ramsey, K B},
abstractNote = {Strong base, nitrate anion exchange (IX) is crucial to the purification of {sup 238}Pu solution feedstocks with gross levels of impurities. This paper discusses the work involved in bench scale experiments to optimize the nitrate anion exchange process. In particular, results are presented of experiments conducted to (a) demonstrate that high levels of impurities can be separated from {sup 238}Pu solutions via nitrate anion exchange and, (b) work out chemical pretreatment methodology to adjust and maintain {sup 238}Pu in the IV oxidation state to optimize the Pu(IV)-hexanitrato anionic complex sorption to Reillex-HPQ resin. Additional experiments performed to determine the best chemical treatment methodology to enhance recovery of sorbed Pu from the resin, and VIS-NIR absorption studies to determine the steady state equilibrium of Pu(IV), Pu(III), and Pu(VI) in nitric acid are discussed.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {1}
}

Conference:
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