Process for reduction of zirconium, hafnium or titanium using a

Details Process for reduction of zirconium, hafnium or titanium using a Process for reduction of zirconium, hafnium or titanium using a

1985-05-30

1987-01-20

Terapane, John F.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 27, C22B 3410

Patent

active

046378316

ABSTRACT:
This is a method for reduction of chlorides of zirconium, hafnium or titanium, and provides a practical method of removing the product metal from the reduction vessel. A seal metal layer is used at the bottom of the vessel. The upper portion of the seal metal layer is liquid and the lower portion is solid. Product metal settles into the liquid portion. Product metal in a matrix of solid seal metal is withdrawn from the bottom of the vessel. Seal metal is predominantly either zinc or tin. Either pure zinc or tin or zinc or tin alloyed with product metal can be recycled to the bottom of the reduction vessel.

REFERENCES:
patent: 2711955 (1955-06-01), Jordan
patent: 2732292 (1956-01-01), Jordan
patent: 2763542 (1956-09-01), Winter, Jr.
patent: 2826492 (1958-03-01), Morash
patent: 2942969 (1960-06-01), Doyle
patent: 3269830 (1966-08-01), Sutherland

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