Document Type

Report

Publication Date

9-1964

Abstract

A process is described for purifying crude or scrap yttrium metal by first reacting the yttrium with fused MgC12and then purifying the magnesium and YC13 products by co-distillation. Dissolution and purification are carried out in a single heating step. The purified YC1 3is reduced with calcium in the presence of the magnesium to form a Y -Mg intermediate alloy which is processed to yttrium sponge. Further refinement of the metal was obtained employing a salt extraction step and electron beam melting. Yttrium of 99. 9+% purity was obtained from metal of 99. 3% purity.

Report Number

IS-984

Language

en

File Format

application/pdf

Included in

Metallurgy Commons

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