Method for improving quality of titanium-containing feedstock
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United States of America Patent
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Oct 31, 2017
Grant Date -
Dec 24, 2015
app pub date -
Mar 6, 2014
filing date -
Mar 6, 2013
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Abstract
A technique is provided, in which impure metal is efficiently separated and removed from titanium-containing raw material such as titanium slag or ilmenite and high titanium-containing raw material is produced. The method for improving quality of titanium-containing raw material containing slag, including steps of: oxidizing the titanium-containing raw material, selectively chlorinating impurities in the titanium-containing raw material, and separating and removing the impure chlorides to obtain high titanium-containing raw material. Alternatively, in this method, the oxidizing treatment and the selective chlorinating treatment are performed simultaneously.
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