Highly pure titanium

Details Highly pure titanium Highly pure titanium

1988-07-15

1990-01-02

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 1019, C22B 3412

Patent

active

048910660

ABSTRACT:
Disclosed is a highly pure titanium which comprises containing not more than 200 ppm of oxygen; not more than 30 ppm each of elements consisting of iron, nickel and chromium, and not more than 0.1 ppm each of elements consisting of sodium and potassium.
Disclosed is also a process for preparing the above highly pure titanium which comprises melting a crude titanium obtained by molten salt electrolysis, in a high vacuum of 5.times.10.sup.-5 mbar or less.

REFERENCES:
patent: 2698267 (1954-12-01), Halversen
patent: 2777763 (1957-01-01), Whaley
patent: 2813921 (1957-11-01), Vordahl
patent: 2977219 (1961-03-01), Chapin
patent: 3406056 (1968-10-01), Albert
patent: 3784593 (1974-01-01), Taylor
patent: 3948637 (1976-04-01), Taylor
patent: 4111686 (1978-09-01), Paris

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