Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Group ivb metal
Patent
1988-07-28
1991-04-30
Morris, Theodore
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Group ivb metal
423 86, 423139, 423 215, 423 49, C22B 3410
Patent
active
050116665
ABSTRACT:
Process for purifying TiO.sub.2 ore consisting essentially of subjecting the ore to two or more leaching treatments, said leaching treatments alternating between use of an aqueous solution of a mineral acid and an aqueous solution of an alkali metal compound selected from the group consisting essentially of alkali metal carbonates, hydroxides or mixtures thereof.
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Chao Tze
Senkler, Jr. George H.
E. I. Du Pont de Nemours and Company
Morris Theodore
Squillante Edward
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