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Priority claimed from PCT/AU1994/000241external-prioritypatent/WO1994026944A1/en
Priority claimed from IN375CA1994external-prioritypatent/IN181286B/en
Priority claimed from ZA943488Aexternal-prioritypatent/ZA943488B/en
Application filed by Tech Resources Pty LtdfiledCriticalTech Resources Pty Ltd
Application grantedgrantedCritical
Publication of TW328968BpublicationCriticalpatent/TW328968B/en
A process for removing impurities from a titaniferous material that has been subjected to thermal reduction, which comprises the steps of: (i) subjecting the thermally reduced titaniferous material to a secondary heat treatment at 700-900℃ and reducing conditions to convert it to a leachable form in which impurities present therein are more readily leachable; (ii) cooling the product of step (i) to form a cooled heat treated titaniferous material; (iii) leaching the cooled heat treated titaniferous material in an aqueous acid solution of hydrochloric acid or sulfuric acid that is capable of dissolving at least a portion of any impurities contained in the titaniferous material to form a leachate; and (iv) separating the leachate from the titaniferous material to form a purified titaniferous material.
TW083106631A1994-05-091994-07-20Process for upgrading titaniferous materials
TW328968B
(en)