Recovery of titanium metal values

Details Recovery of titanium metal values Recovery of titanium metal values

C - Chemistry, Metallurgy

01

G

23/261

C01G 23/04 (2006.01)

Patent

CA 1106145

RECOVERY OF TITANIUM METAL VALUES ABSTRACT Titanium metal values are recovered from a titanium bearing source such as an ilmenite ore by subjecting the source to a reductive roast and leaching the reduced source with a halogen-containing compound. Following this the soluble metal halides are separated from gangue and the pregnant leach liquor is treated with an iron oxide such as ferric oxide to precipi- tate titanium dioxide. The nucleation of the titanium dioxide may be im- proved by using a large excess of ferric oxide in the precipitation step The improvement will thus result in an increased yield of the desired titanium dioxide.

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