Method for improving quality of titanium-containing feedstock
AssigneeToho Titanium Co., Ltd.
InventorsMatsuhide Horikawa, Seiichiro Tani
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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.
Claims8
A method for improving quality of titanium-containing raw material containing slag, comprising steps of:
- an oxidizing step in which the titanium-containing raw material is oxidized,
- a selective chlorinating step in which impure metal components contained in the titanium-containing raw material are selectively chlorinated to form impure metal chlorides, wherein the oxidizing step and the selective chlorinating step are performed simultaneously, and
- a separating and removing step in which the impure metal chlorides are separated and removed to obtain high titanium-containing raw material,
- wherein carbon material is not used in the oxidizing step and the selective chlorinating step.
Dependencies are inferred from the claim text.