FIELD: metallurgy. SUBSTANCE: distillation is carried out from melt of crude scandium containing 1-20 mas.% of zirconium. EFFECT: higher efficiency. 1 tbl
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METHOD FOR PRODUCTION OF HIGH-PURITY METALLIC SCANDIUM | 1992 |
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METHOD FOR PRODUCTION OF HIGH-PURITY ZIRCONIUM OF HAFNIUM | 1993 |
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Authors
Dates
1995-04-30—Published
1992-01-28—Filed