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

1979-12-11

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

041781767

ABSTRACT:
Iron metal values and titanium metal values may be recovered from iron and titanium bearing sources such as ilmenite by subjecting the source to a reductive roast followed by leaching of the reduced source with a halogen-containing compound. Thereafter, the iron halide is crystallized and separated from the soluble titanium halides. One portion of the iron halides is subjected to a reducing step to form metallic iron while a second portion is oxidized, the iron oxides being used to precipitate the titanium as titanium dioxide. The titanium dioxide may then be separated and recovered while the liquid portion is recycled to the leaching zone.

REFERENCES:
patent: 3076692 (1963-02-01), Ruter et al.
patent: 3236596 (1966-02-01), Zirngibl et al.
patent: 3407033 (1968-10-01), Ruter et al.
patent: 3529931 (1970-09-01), Moklebust
patent: 3825419 (1974-07-01), Chem
patent: 3859077 (1975-01-01), Othmer
patent: 3903239 (1975-09-01), Berkovich
patent: 3929962 (1975-12-01), Shiah

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