Refining of zirconium and vanadium by hydrogen plasma-arc melting

Kouji Mimura, Sang Woon Lee, Minoru Isshiki

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Removal of the alloying elements such as tin, iron, nickel and chromium from the melts of a zircaloy scrap has been investigated using H2(O to 50%) - Ar plasma-arc melting under an atmospheric pressure and reduced pressures. It is found that the tin and iron contents can be reduced effectively. Removal of them obeys a first order rate law and the removal rates increase with hydrogen content in the plasma gas and with decrease in the pressure. This unique refining effect is to be caused by dissociated and activated hydrogen atoms in a plasma-arc. It has been also confirmed that the hydrogen plasma-arc melting is effective for removal of aluminum and oxygen from a crude vanadium metal produced by the alumino thermical reduction of vanadium oxide.

Original languageEnglish
Title of host publicationFirst International Conference on Processing Materials for Properties
PublisherPubl by Minerals, Metals & Materials Soc (TMS)
Pages853-856
Number of pages4
ISBN (Print)0873392566
Publication statusPublished - 1993 Dec 1
EventProceedings of the 1st International Conference on Processing Materials for Properties - Honolulu, HI, USA
Duration: 1993 Nov 71993 Nov 10

Publication series

NameFirst International Conference on Processing Materials for Properties

Other

OtherProceedings of the 1st International Conference on Processing Materials for Properties
CityHonolulu, HI, USA
Period93/11/793/11/10

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Mimura, K., Lee, S. W., & Isshiki, M. (1993). Refining of zirconium and vanadium by hydrogen plasma-arc melting. In First International Conference on Processing Materials for Properties (pp. 853-856). (First International Conference on Processing Materials for Properties). Publ by Minerals, Metals & Materials Soc (TMS).