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Chemical treatment of ammonium fluoride solution in uranium reconversion plant; Estudo do tratamento quimico da solucao de fluoreto de amonio proveniente da unidade de reconversao de uranio

Abstract

A chemical procedure is described for the treatment of the filtrate, produced from the transformation of uranium hexafluoride (U F{sub 6}) into ammonium uranyl carbonate (AUC). This filtrate is an intermediate product in the U F{sub 6} to uranium dioxide (U O{sub 2}) reconversion process. The described procedure recovers uranium as ammonium peroxide fluoro uranate (APOFU) by precipitation with hydrogen peroxide (H{sub 2} O{sub 2}), and as later step, its calcium fluoride (CaF{sub 2}) co-precipitation. The recovered uranium is recycled to the AUC production plant. (author).
Publication Date:
Dec 31, 1992
Product Type:
Thesis/Dissertation
Report Number:
INIS-BR-3117
Reference Number:
SCA: 050800; PA: AIX-24:044301; SN: 93000988527
Resource Relation:
Other Information: TH: Tese (M.Sc.).; PBD: 1992
Subject:
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; AUC; PILOT PLANTS; URANIUM RECYCLE; COPRECIPITATION; AMMONIUM FLUORIDES; CALCIUM FLUORIDES; EXPERIMENTAL DATA; HYDROGEN PEROXIDE; ION EXCHANGE; REPROCESSING; SOLUTIONS; URANIUM HEXAFLUORIDE; X-RAY DIFFRACTION; 050800; SPENT FUELS REPROCESSING
OSTI ID:
10151759
Research Organizations:
Instituto de Pesquisas Energeticas e Nucleares (IPEN), Sao Paulo, SP (Brazil)
Country of Origin:
Brazil
Language:
Portuguese
Other Identifying Numbers:
Other: ON: DE93624365; TRN: BR9331131044301
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
INIS
Size:
[137] p.
Announcement Date:
Jul 05, 2005

Citation Formats

Carvalho Frajndlich, E.U. de. Chemical treatment of ammonium fluoride solution in uranium reconversion plant; Estudo do tratamento quimico da solucao de fluoreto de amonio proveniente da unidade de reconversao de uranio. Brazil: N. p., 1992. Web.
Carvalho Frajndlich, E.U. de. Chemical treatment of ammonium fluoride solution in uranium reconversion plant; Estudo do tratamento quimico da solucao de fluoreto de amonio proveniente da unidade de reconversao de uranio. Brazil.
Carvalho Frajndlich, E.U. de. 1992. "Chemical treatment of ammonium fluoride solution in uranium reconversion plant; Estudo do tratamento quimico da solucao de fluoreto de amonio proveniente da unidade de reconversao de uranio." Brazil.
@misc{etde_10151759,
title = {Chemical treatment of ammonium fluoride solution in uranium reconversion plant; Estudo do tratamento quimico da solucao de fluoreto de amonio proveniente da unidade de reconversao de uranio}
author = {Carvalho Frajndlich, E.U. de}
abstractNote = {A chemical procedure is described for the treatment of the filtrate, produced from the transformation of uranium hexafluoride (U F{sub 6}) into ammonium uranyl carbonate (AUC). This filtrate is an intermediate product in the U F{sub 6} to uranium dioxide (U O{sub 2}) reconversion process. The described procedure recovers uranium as ammonium peroxide fluoro uranate (APOFU) by precipitation with hydrogen peroxide (H{sub 2} O{sub 2}), and as later step, its calcium fluoride (CaF{sub 2}) co-precipitation. The recovered uranium is recycled to the AUC production plant. (author).}
place = {Brazil}
year = {1992}
month = {Dec}
}