Recovery of titanium metal values

Details Recovery of titanium metal values Recovery of titanium metal values

1978-08-22

1979-11-20

Carter, Herbert T.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group ivb metal

423 69, 423 82, 423 85, 423140, 423141, 423150, 75114, C01G 2304

Patent

active

041751108

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 if treated with an iron oxide such as ferric oxide to precipitate titanium dioxide. The nucleation of the titanium dioxide may be improved 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.

REFERENCES:
patent: 3076692 (1963-02-01), Ruter et al.
patent: 3236596 (1966-02-01), Zumgibl et al.
patent: 3825419 (1974-07-01), Chen
patent: 3859077 (1975-01-01), Othmer
patent: 3903239 (1975-09-01), Berkovich
patent: 3929962 (1975-12-01), Shiah

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