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Reduced Enrichment for Research and Test Reactors
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Abstracts and Available Papers Presented at the
1998 International RERTR Meeting

ALTERNATIVE ROUTE FOR UF6 CONVERSION TOWARDS UF4 TO
PRODUCE METALLIC URANIUM

Frajndlich,E.U.C.*;Saliba-Silva A.M.** ;Zorzetto M.A.*

Instituto de Pesquisas Energéticas e Nucleares (IPEN/CNEN-SP)
Departamento do Ciclo do Combustível

*Divisão de Processos Químicos

**Divisão de Processos Metalúrgicos
Travessa "R", 400 – Cidade Universitária –CEP 05508-900
São Paulo – São Paulo – Brasil

Fone (011) 816-9340 – Fax (011) 816 9394
e-mails: elitaucf@net.ipen.br; adonis@net.ipen.br; zorzetto@net.ipen.br

Abstract

The present work is focused on a study for the preparation of uranium tetrafluoride UF4 appropriate for the metallic uranium (Uo) reduction from solutions obtained by uranium hexafluoride (UF6) hydrolysis using stannous chloride (SnCl2) as the reducing agent.

The objective of the present study has been on one hand to gather experience within the uranium tetrafluoride preparation technology field by making use of an alternative, safe and simple process with which the knowledge obtained through uranium hexafluoride hydrolysis solution could be used, and on the other hand to determine the best conditions for obtaining this product, in view of the effect of experimental variables over the physical and chemical characteristics of the powder obtained, particularly the contents of uranium dioxide (UO2), uranyl fluoride (UO2F2), the contents of hydrating water and specific surface, in order to make a correlation of those properties with the yielding of the reduction reaction caused by that compound at uranium metal producing.The metallurgical process for metallic uranium production is updated.


PDF version available
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Contact:
Elita Urano de C. Frajndlich
Instituto de Pesquisas Energéticas e Nucleares-CNEN/SP
Travessa R, 400 - Cidade Universitária
São Paulo SP 05508-900
Brazil

Phone: 55 11 816 9340
Fax: 55 11 816 9394
Email: elitaucf@net.ipen.br

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Last modified on July 29, 2008 11:34 +0200