Argonne National Laboratory
Reduced Enrichment for Research and Test Reactors
Nuclear Science and Engineering Division at Argonne
U.S. Department of Energy

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Abstracts and Available Papers Presented at the
1998 International RERTR Meeting


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: [email protected]r; [email protected]; [email protected]


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
here  to access the full paper in PDF format.

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

Phone: 55 11 816 9340
Fax: 55 11 816 9394
Email: [email protected]

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