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Development of electrolytic process in molten salt media for light rare-earth metals production. The metallic cerium electrodeposition; Desenvolvimento de processo de eletrolise em meio de sais fundidos para a producao de metais de terras-raras leves. A obtencao do cerio metalico

Abstract

The development of molten salt process and the respective equipment aiming rare-earth metals recovery was described. In the present case, the liquid cerium metal electrodeposition in a molten electrolytes of cerium chloride and an equimolar mixture of sodium and potassium chlorides in temperatures near 800{sup C} was studied. Due the high chemical reactivity of the rare-earth metals in the liquid state and their molten halides, an electrolytic cell was constructed with controlled atmosphere, graphite crucibles and anodes and a tungsten cathode. The electrolytic process variables and characteristics were evaluated upon the current efficiency and metallic product purity. Based on this evaluations, were suggested some alterations on the electrolytic reactor design and upon the process parameters. (author). 90 refs, 37 figs, 20 tabs.
Authors:
Publication Date:
Dec 31, 1994
Product Type:
Thesis/Dissertation
Report Number:
INIS-BR-3547
Reference Number:
SCA: 360101; 360606; PA: AIX-26:069275; EDB-95:135835; ERA-20:030028; NTS-96:007110; SN: 95001471435
Resource Relation:
Other Information: TH: Tese (M.Sc.).; PBD: 1994
Subject:
36 MATERIALS SCIENCE; CERIUM; ELECTRODEPOSITION; CERIUM CHLORIDES; COST; ELECTROLYTIC CELLS; IMPURITIES; METALLOGRAPHY; MOLTEN SALTS; OPTIMIZATION; PERFORMANCE; PHYSICAL PROPERTIES; TEMPERATURE DEPENDENCE; TEMPERATURE RANGE 1000-4000 K
OSTI ID:
110363
Research Organizations:
Instituto de Pesquisas Energeticas e Nucleares (IPEN), Sao Paulo, SP (Brazil)
Country of Origin:
Brazil
Language:
Portuguese
Other Identifying Numbers:
Other: ON: DE96602535; TRN: BR9533431069275
Availability:
INIS; OSTI as DE96602535
Submitting Site:
BRN
Size:
136 p.
Announcement Date:
Oct 30, 1995

Citation Formats

Restivo, T A.G. Development of electrolytic process in molten salt media for light rare-earth metals production. The metallic cerium electrodeposition; Desenvolvimento de processo de eletrolise em meio de sais fundidos para a producao de metais de terras-raras leves. A obtencao do cerio metalico. Brazil: N. p., 1994. Web.
Restivo, T A.G. Development of electrolytic process in molten salt media for light rare-earth metals production. The metallic cerium electrodeposition; Desenvolvimento de processo de eletrolise em meio de sais fundidos para a producao de metais de terras-raras leves. A obtencao do cerio metalico. Brazil.
Restivo, T A.G. 1994. "Development of electrolytic process in molten salt media for light rare-earth metals production. The metallic cerium electrodeposition; Desenvolvimento de processo de eletrolise em meio de sais fundidos para a producao de metais de terras-raras leves. A obtencao do cerio metalico." Brazil.
@misc{etde_110363,
title = {Development of electrolytic process in molten salt media for light rare-earth metals production. The metallic cerium electrodeposition; Desenvolvimento de processo de eletrolise em meio de sais fundidos para a producao de metais de terras-raras leves. A obtencao do cerio metalico}
author = {Restivo, T A.G.}
abstractNote = {The development of molten salt process and the respective equipment aiming rare-earth metals recovery was described. In the present case, the liquid cerium metal electrodeposition in a molten electrolytes of cerium chloride and an equimolar mixture of sodium and potassium chlorides in temperatures near 800{sup C} was studied. Due the high chemical reactivity of the rare-earth metals in the liquid state and their molten halides, an electrolytic cell was constructed with controlled atmosphere, graphite crucibles and anodes and a tungsten cathode. The electrolytic process variables and characteristics were evaluated upon the current efficiency and metallic product purity. Based on this evaluations, were suggested some alterations on the electrolytic reactor design and upon the process parameters. (author). 90 refs, 37 figs, 20 tabs.}
place = {Brazil}
year = {1994}
month = {Dec}
}