Accession Number : AD0276748

Title :   THE PREPARATION OF HIGH PURITY RARE EARTH METALS

Corporate Author : RESEARCH CHEMICALS DIV NUCLEAR CORP OF AMERICA BURBANK CALIF

Personal Author(s) : HEININK,C.J.

Report Date : APR 1962

Pagination or Media Count : 1

Abstract : Ultra high purity rare earth metals, praseodymium, europium, gadolinium and lutetium with total metallic impurities of less than 10 ppm have been made. Methods of separation, reduction and purification were: ion exchange, mercury amalgamate oxidation-reduction, dry fluoride preparation, metallothermic reduction and vacuum distillation. Spectrographic methods were improved and refined to obtain greater sensitivity. Gas chromatography was investigated as an analytical tool for determination of impurities in rare earth organo metallics. (Author)

Descriptors :   *EUROPIUM, *GADOLINIUM, *LUTETIUM, *PRASEODYMIUM, *RARE EARTH ELEMENTS, CHROMATOGRAPHY, DISTILLATION, ION EXCHANGE, SEPARATION, SPECTROGRAPHY.

Distribution Statement : APPROVED FOR PUBLIC RELEASE

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