METHOD FOR PRODUCING THE REFRACTORY METALS HAFNIUM, TITANIUM, VANADIUM, SILICON, ZIRCONIUM, THORIUM, COLUMBIUM, AND CHROMIUM

Patent · Tue Apr 16 00:00:00 EST 1963

OSTI ID:4721477

Griffiths, K F

A method and the apparatus used for the liquid phase production of Ti, Zr, V, Hf, Si, Th, Cr, and Nb by the reduction of a halide of the desired metal with a sufficient amount of reducing agent in a zone surrounded by a twocomponent agent halide supported by a metal product lining are described. Suitable reducing agents are Li, Na, K, Rb, Cs, Mg, and Ca. Na is preferred for the production of Ti, V, Zr, Si, Th, and Cr, and Ca and Mg for the production of Nb because their fluorides have much lower vapor pre sures than any of the halides of the other reducing agents at the melting point of Nb. (P.C.H.)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-17-020409
• Assignee: DTIE; NSA-17-020409
• Patent Number(s): US 3085872
• OSTI ID: 4721477
• Resource Relation: Patent File Date: 1958 Jul 01; Other Information: Orig. Receipt Date: 31-DEC-63
• Country of Publication: United States
• Language: English

Related Subjects

METALS, CERAMICS, AND OTHER MATERIALS
CALCIUM
CESIUM
CHROMIUM
FLUORIDES
HAFNIUM
HALIDES
LABORATORY EQUIPMENT
LITHIUM
MAGNESIUM
MELTING POINTS
NIOBIUM
POTASSIUM
PRODUCTION
REDUCTION
REFRACTORIES
RUBIDIUM
SILICON
SODIUM
THORIUM
VANADIUM
ZIRCONIUM