Pretreatment of refractory titaniferous ores
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United States of America Patent
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Issued Date -
Jul 20, 2006
app pub date -
Dec 9, 2005
filing date -
Dec 10, 2004
priority date (Note) -
Abandoned
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Abstract
A process for increasing the solubility of titanium in oxidized titanium compounds, titaniferous ore, ore concentrate, or mixtures thereof. The process includes adding an iron compound to the titaniferous ore or ore concentrate, mixing to form a mixture, heating under a controlled atmosphere to form an iron-titanium compound, cooling, and milling to form a powder. The solubility in concentrated hydrochloric acid of the titanium in the powder is greater than the solubility of the titanium in the titaniferous ore or ore concentrate.
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