Production of yttrium

Details Production of yttrium Production of yttrium

C - Chemistry, Metallurgy

22

B

53/162, 75/49

C22B 4/00 (2006.01) C22B 59/00 (2006.01) C22C 28/00 (2006.01)

Patent

CA 1166874

ABSTRACT Process for producing yttrium metal or alloy by reacting calcium metal and yttrium fluoride using a submerged electric arc in a molten slag. The main component of the slag may be calcium fluoride with iron being added to the slag for instance by way of consumable iron electrodes. The electrode may be an iron tube containing calcium metal and yttrium fluoride and an aluminium containing alloy may be produced by adding aluminium or aluminium fluoride to the slag.

367875

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