C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
53/149
C22B 34/14 (2006.01) C22B 9/04 (2006.01)
Patent
CA 1044899
ABSTRACT A process for producing metallic zirconium characterised in that a reducing crucible deposited with zirconium sponge which is formed by reducing zirconium tetrachloride with metallic magnesium in reduc- ing reaction device is put out from the reducing reaction device and only the part which is deposited with zirconium sponge in the reducing crucible is cut and the lower cut parts are piled up in a device for a vacuum distillation and then the zirconium sponge which is deposited in the cut parts is purified by a vacuum distillation.
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