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Plutonium removal by ion exchange chromatography; Separacao de tracos de plutonio por cromatografia de troca ionica

Miscellaneous:

Abstract

A study for plutonium recovery at trace level from uranium solutions by ion exchange technique is presented. Plutonium retention > 99,5% onto strong anionic resin, AG-X8, from nitric acid solutions and a 92% recovery using 0,4 H NO{sub 3} at 60{sup 0} C as eluent, were obtained. Uranium interference on the plutonium sorption from mixed U-Pu nitrate solutions with low U/Pu ratio ({approx} 25) was not verified. However, for high U/Pu ratio solutions ({approx} 10000), uranium interferes on the plutonium retention onto resin, decreasing to 59%. Selecting the loaded conditions and using AG-X4 resin, 99% plutonium retention was achieved. The plutonium product is still contaminated with U and other purification cycle is recommended. A scheme for U-Pu first cycle separation is proposed. (author).
Publication Date:
Dec 31, 1991
Product Type:
Miscellaneous
Report Number:
INIS-BR-3086; CONF-9110453-
Reference Number:
SCA: 400105; PA: AIX-24:000079; SN: 93000912532
Resource Relation:
Conference: 31. Brazilian Congress on Chemistry,Recife (Brazil),21-25 Oct 1991; Other Information: PBD: 1991
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; PLUTONIUM; ION EXCHANGE; EXPERIMENTAL DATA; RESINS; URANIUM; 400105; SEPARATION PROCEDURES
OSTI ID:
10108390
Research Organizations:
Instituto de Pesquisas Energeticas e Nucleares (IPEN), Sao Paulo, SP (Brazil)
Country of Origin:
Brazil
Language:
Portuguese
Other Identifying Numbers:
Other: ON: DE93608792; TRN: BR9230513000079
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
INIS
Size:
[12] p.
Announcement Date:
Jun 30, 2005

Miscellaneous:

Citation Formats

Araujo, B.F. de, Matsuda, H T, Carvalho, E.I. de, and Araujo, I.C. de. Plutonium removal by ion exchange chromatography; Separacao de tracos de plutonio por cromatografia de troca ionica. Brazil: N. p., 1991. Web.
Araujo, B.F. de, Matsuda, H T, Carvalho, E.I. de, & Araujo, I.C. de. Plutonium removal by ion exchange chromatography; Separacao de tracos de plutonio por cromatografia de troca ionica. Brazil.
Araujo, B.F. de, Matsuda, H T, Carvalho, E.I. de, and Araujo, I.C. de. 1991. "Plutonium removal by ion exchange chromatography; Separacao de tracos de plutonio por cromatografia de troca ionica." Brazil.
@misc{etde_10108390,
title = {Plutonium removal by ion exchange chromatography; Separacao de tracos de plutonio por cromatografia de troca ionica}
author = {Araujo, B.F. de, Matsuda, H T, Carvalho, E.I. de, and Araujo, I.C. de}
abstractNote = {A study for plutonium recovery at trace level from uranium solutions by ion exchange technique is presented. Plutonium retention > 99,5% onto strong anionic resin, AG-X8, from nitric acid solutions and a 92% recovery using 0,4 H NO{sub 3} at 60{sup 0} C as eluent, were obtained. Uranium interference on the plutonium sorption from mixed U-Pu nitrate solutions with low U/Pu ratio ({approx} 25) was not verified. However, for high U/Pu ratio solutions ({approx} 10000), uranium interferes on the plutonium retention onto resin, decreasing to 59%. Selecting the loaded conditions and using AG-X4 resin, 99% plutonium retention was achieved. The plutonium product is still contaminated with U and other purification cycle is recommended. A scheme for U-Pu first cycle separation is proposed. (author).}
place = {Brazil}
year = {1991}
month = {Dec}
}