Method for refining reactive and refractory metals

Details Method for refining reactive and refractory metals Method for refining reactive and refractory metals

1991-05-14

1992-09-15

Lechert, Jr., Stephen J.

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

75612, 75621, C12C 1600

Patent

active

051474514

ABSTRACT:
A process is disclosed for recovering high purity refractory product metal such as titanium, hafnium, zirconium, vanadium, niobium or their alloys from the regulus of a reduction reaction mixture of a by-product metal halide, excess reducing metal and product metal, which process includes feeding crushed regulus material into a furnace, heating the regulus at temperatures to melt then remove by vaporizing the metal halide and excess reducing metal, and melting the product metal before recovering it from the furnance pool obviating the steps of vacuum distillation or leaching in the recovering step.

REFERENCES:
patent: 4919191 (1990-04-01), Brodersen
patent: 4985069 (1991-01-01), Travt

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