Preliminary Investigation of Hafnium Metal by the Kroll Process

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© 1955 ECS - The Electrochemical Society
, , Citation H. L. Gilbert and M. M. Barr 1955 J. Electrochem. Soc. 102 243 DOI 10.1149/1.2430037

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Author affiliations

1 Northwest Electrodevelopment Laboratory, U. S. Bureau of Mines, Albany, Oregon

2 Harvey Aluminum Company, 19200 South Western Avenue, Torrance, California.

Dates

  1. Received 20 August 1954

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1945-7111/102/5/243

Abstract

Several hundred pounds of hafnium metal of better than 98% purity have been produced by the Kroll process of magnesium reduction of the tetrachloride. A discussion of the process from oxide to metal stages is given with thermodynamic values for chlorination and reduction. Metal produced to date is hot malleable but not cold ductile

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