Improved process for beneficating iron-containing titaniferous o

Details Improved process for beneficating iron-containing titaniferous o Improved process for beneficating iron-containing titaniferous o

1987-06-15

1988-08-09

Garvin, Patrick P.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75115, 75101R, 423 69, 423 71, 423 82, C22B 106

Patent

active

047625520

ABSTRACT:
The beneficiation or upgrading of an iron-containing titaniferous ore to a synthetic rutile by subjecting the ore to reduction followed by acid leaching of the reduced ore is improved by forming a mixture of the ore and an aqueous sulfuric acid solution, adding a reducing agent to this mixture and then subjecting this mixture containing the reducing agent to reduction at elevated temperatures. The resulting reduced ore, which is characterized by an increase in the ferrous iron content thereof and an increase in its specific surface area, exhibits an enhanced response to subsequent acid leaching to provide a synthetic rutile of improved purity.

REFERENCES:
patent: 3777013 (1973-12-01), Soverini et al.
patent: 4197276 (1980-04-01), Tolley et al.
patent: 4288417 (1981-09-01), Rahm et al.
patent: 4435365 (1984-03-01), Morris

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