Processing metal chlorides

Details Processing metal chlorides Processing metal chlorides

1979-04-16

1981-01-20

Andrews, M. J.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 1T, 75 10R, 75 84, C22B 5500

Patent

active

042460220

ABSTRACT:
Metal may be recovered from metal chlorides, for example a mixed metal chloride residue from the fluidized bed chlorination of a titaniferous ore in the presence of carbon to produce titanium tetrachloride by heating, in the presence of a scavenging agent, which may comprise a combination of titanium dioxide and carbon inherently present in a residue from the aforesaid fluidized bed chlorination process, to at least 1500.degree. C. and preferably to a temperature at which iron present is liquid. If the temperature is maintained at below 2200.degree. C. iron, vanadium and niobium may be recovered preferentially to certain lower value metals which remain in the form of chlorides giving the possibility for the recovery of a high value mixed metal product. Titanium trichloride may be formed and this may be chlorinated to titanium tetrachloride thereby increasing the efficiency of the original chlorination process.

REFERENCES:
patent: 3859077 (1975-01-01), Othmer
patent: 3989510 (1976-11-01), Othmer

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