Improved process for beneficating iron-containing titaniferous ores
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United States of America Patent
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Aug 9, 1988
Grant Date -
N/A
app pub date -
Jun 15, 1987
filing date -
Jun 15, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The beneficiation or upgrading of an iron-containing titaniferous ore to a synthetic rutile by subjecting the ore to reduction followed by acid leaching of the reduced ore is improved by forming a mixture of the ore and an aqueous sulfuric acid solution, adding a reducing agent to this mixture and then subjecting this mixture containing the reducing agent to reduction at elevated temperatures. The resulting reduced ore, which is characterized by an increase in the ferrous iron content thereof and an increase in its specific surface area, exhibits an enhanced response to subsequent acid leaching to provide a synthetic rutile of improved purity.
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