Method for removing vanadium impurity in crude titanium tetrachloride and method for refining crude titanium tetrachloride
A technology of crude titanium tetrachloride and titanium tetrachloride, which is applied in the direction of titanium halide, can solve the problems of insufficient research, high labor intensity, and the need for rectification again, and achieve high vanadium removal efficiency, no impact on quality, and titanium The effect of high yield
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[0036] Example 1
[0037] Choose a refining system from a factory, and the crude titanium tetrachloride produced by it contains 0.095% vanadium. In the vanadium removal system, 0.5kg of magnesium hydride powder is added per ton of crude titanium tetrachloride. The particle size is 45μm. Mix it to fully react with crude titanium tetrachloride, and then obtain refined titanium tetrachloride after rectification by the refining system, and verify that its vanadium content is 0.0005%. After calculation, the vanadium removal purification rate η is 99.5%.
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[0038] Example 2
[0039] Choose a refining system from a factory, and the crude titanium tetrachloride produced by it contains 0.095% vanadium. In the vanadium removal system, 0.8kg of magnesium hydride powder is added per ton of crude titanium tetrachloride. The particle size is 80μm. Mix it to fully react with crude titanium tetrachloride, and then obtain refined titanium tetrachloride after rectification by the refining system, and verify that its vanadium content is 0.0013%. After calculation, the purification rate η of vanadium removal is 98.6%.
Example
[0040] Example 3
[0041] The refining system of a certain factory is selected, and the crude titanium tetrachloride produced by it contains 0.115% vanadium. In the vanadium removal system, 0.6kg of magnesium hydride powder is added per ton of crude titanium tetrachloride, and the particle size is 10μm. Mix it to fully react with crude titanium tetrachloride, then obtain refined titanium tetrachloride after rectification by the refining system, and verify that its vanadium content is 0.0003%. After calculation, the purification rate η of vanadium removal is 99.7%.
[0042] Through the above examples, it can be seen that for crude titanium tetrachloride with a mass percentage of vanadium in the range of 0.095% to 0.115%, the method of the present invention can effectively remove the vanadium element in the crude titanium tetrachloride ( For example, the purification rate η of vanadium removal can reach 99.5% or more) to obtain refined titanium tetrachloride.
[0043] In summary, the...
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