| Abstrakt: |
Purification of titanium tetrachloride (TiCl4) is an important step in the titanium process. After chlorination, impurities in the gained crude TiCl4such as V, Al, Fe, Si, etc. were removed by distillation technique following the chemical pre‐treatment method. Simple distillation, distillation with bubbled N2and distillation in presence of copper metal were tested. Effect of copper metal, diethyl malonate and acetylacetone on the impurities removal was evaluated. Obtained results showed that the chemical pre‐treatment method exhibited a higher efficiency for TiCl4purification than the distillation method. Acetylacetone was shown to be a suitable agent for impurities removal, resulting low content of V, Zr, Al, Fe and Si in the final purified TiCl4product. Crude TiCl4purification in distillation tower of a pilot scale was successfully operated. |
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