Treatment of aluminous materials

Details Treatment of aluminous materials Treatment of aluminous materials

C - Chemistry, Metallurgy

01

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53/240

C01F 7/46 (2006.01) C01F 7/22 (2006.01) C01F 7/30 (2006.01) C01F 7/56 (2006.01)

Patent

CA 1191698

ABSTRACT A leaching process employing acidic chloride solutions, whereby the iron content of aluminous materials such as lower grade iron-containing bauxite ores is reduced, enabling the obtention of valuable products such as metallurgical grade alumina and refractory grade bauxite, previously obtainable only from higher grade low-iron aluminous materials.

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