C - Chemistry – Metallurgy – 01 – F
Patent
C - Chemistry, Metallurgy
01
F
23/167, 23/241
C01F 7/22 (2006.01) C01F 7/56 (2006.01) C01F 7/58 (2006.01) C22B 21/00 (2006.01)
Patent
CA 1158417
ABSTRACT OF THE DISCLOSURE A process for the removal of iron and titanium minerals from aluminum bearing materials in at least one chlorination stage by the use of an excess of aluminum trichloride as at least the major chlorinating agent for the contained iron and titanium minerals, condensing the excess aluminum trichloride to recover the aluminum trichloride in an impure form, and recycling the impure aluminum trichloride to the chlorination stage together with additional aluminum trichloride or star- vation amounts of chlorine, or alternately additional amounts of aluminum trichloride and starvation amounts of chlorine.
358578
Johnson & Hicks
Reynolds Metals Company
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