Recovery of iron and titanium metal values

Details Recovery of iron and titanium metal values Recovery of iron and titanium metal values

1978-07-19

1979-11-27

Carter, Herbert T.

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

75 1T, 75114, 423 82, 423 83, 423 85, 423 86, 423140, 423150, C21B 1500, C01G 2304

Patent

active

041759524

ABSTRACT:
Iron metal values and titanium metal values may be recovered from iron and titanium bearing sources such as an ilmenite ore by subjecting the source to a reductive roast after crushing the source to a desired particle size. The reduced source is then leached by treatment with a halogen-containing compound to form soluble titanium halides and iron halides. Thereafter the soluble titanium halide is precipitated by treatment with iron oxides such as ferric oxide and after separation from the soluble iron halides is recovered as titanium dioxide. The soluble iron halides are then crystallized by reducing the temperature of the solution and one portion of the crystals are subjected to a reduction step to form metallic iron. The other portion of the iron halide crystals is oxidized to form ferric oxide which is used to precipitate the titanium compound.

REFERENCES:
patent: 2088913 (1937-08-01), Llewellyn
patent: 3076692 (1963-02-01), Ruter et al.
patent: 3236596 (1966-02-01), Zungill et al.
patent: 3407033 (1968-10-01), Ruter et al.
patent: 3529931 (1970-09-01), Moklebust
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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