Published 1994 | Version v1
Miscellaneous Metadata-only

Neptunium separation in trace levels from uranium solutions by extraction chromatography

Creators

  • 1. Instituto de Pesquisas Energeticas e Nucleares (IPEN), Sao Paulo, SP (Brazil)

Description

Neptunium and uranium behavior in extraction chromatograph system, aiming the separation of micro quantities of neptunium from uranyl solutions is described. Tri-n-octylamine (TOA), Tri-n-butylphosphate (TBP) as stationary phase, alumine, Voltalef UF-300 as support material were verified. The impregnation conditions as well as the best stationary phase/support material ratio were established. TBP/alumine, TBP/Voltalef and TOA/alumine system were selected to uranium and neptunium separation studies. (author) . 12 refs., 03 tabs., 03 figs

Availability note (English)

Available from the Library of Comissao Nacional de Energia Nuclear , RJ (BR).

Additional details

Additional titles

Original title (Portuguese)
Separacao de tracos de neptunio de solucoes de uranio por cromatografia de extracao

Publishing Information

Imprint Pagination
11 p.

Conference

Title
18. Annual Symposium of the Academia de Ciencias do Estado de Sao Paulo.
Dates
16-18 Nov 1993.
Place
Sao Paulo, SP (Brazil).

INIS

Country of Publication
Brazil
Country of Input or Organization
Brazil
INIS RN
26000081
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Resource subtype / Literary indicator
Conference, Non-conventional Literature
Descriptors DEI
EXTRACTION CHROMATOGRAPHY; GAMMA SPECTROSCOPY; IRRADIATION; NEPTUNIUM; TBP; TOA; TRACE AMOUNTS; URANIUM; URANYL NITRATES
Descriptors DEC
ACTINIDE COMPOUNDS; ACTINIDES; AMINES; BUTYL PHOSPHATES; CHELATING AGENTS; CHROMATOGRAPHY; ELEMENTS; ESTERS; METALS; NITRATES; NITROGEN COMPOUNDS; ORGANIC COMPOUNDS; ORGANIC PHOSPHORUS COMPOUNDS; OXYGEN COMPOUNDS; PHOSPHORIC ACID ESTERS; SEPARATION PROCESSES; SPECTROSCOPY; TRANSURANIUM ELEMENTS; URANIUM COMPOUNDS; URANYL COMPOUNDS