Title: Combination beneficiation ilmenite digestion liquor reduction process

Abstract: A process is disclosed which removes iron from ilmenite ore thereby rendering it suitable for use in the chlorination process for forming TiO.sub.2 from titanium ores. One advantage of the disclosed process is that the iron is removed from the ilmenite by a method which performs a reduction step in the sulfuric acid process for producing TiO.sub.2 from titanium ore.

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Inventors: Preston, Peter Joseph (Savannah, GA, US)
Roberts, Jr., George Leathwhite (Savannah, GA, US)
Filimore, Dennis Arthur (Savannah, GA, US)
Sheehan, Gerard Martin (Savannah, GA, US)

Application Number: 729913
Filing Date: 1976-10-05
Publication_date: 1978-05-16
Assignee: American Cyanamid Company (Stamford, CT)
Primary Class(es): 423/82 423/86
Other Classes:
US Patent Ref:

1542350	Jun, 1925	Whittemore	75/1.
3094386	Jun, 1963	Wigginton	423/86.
3112178	Nov, 1963	Judd	423/86.
3169046	Feb, 1965	Nespital	423/146.
3252787	May, 1966	Shiah	75/101.
3403977	Oct, 1968	Heywood et al.	423/616.
3446590	May, 1969	Michal et al.	75/101.
3627508	Dec, 1971	Hughes et al.	423/86.
3660029	May, 1972	Naguib	75/1.
4014977	Mar, 1977	Piccolo et al.	423/616.

Other Refs:
Primary Examiner: Rutledge, L. Dewayne
Assistant Examiner: Lewis, Michael L.
Attorney: Van Riet; Frank M.