High-Speed Titanium Production by Magnesiothermic Reduction of Titanium Trichloride
High-Speed Titanium Production by Magnesiothermic Reduction of Titanium Trichloride
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DOI：
10.2320/matertrans.47.1145
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发表时间：
2006-04
影响因子：
1.2
通讯作者：
O. Takeda;T. Okabe
中科院分区：
文献类型：
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作者：
O. Takeda;T. Okabe
讨论了用镁热还原亚氯化钛——二氯化钛（TiCl2）和/或三氯化钛（TiCl3）——高速（半）连续生产钛的可能性。将TiCl3进料和镁还原剂装入钛反应容器中，在氩气气氛中以0.056 K/s （3.3 K/min）的速度加热，反应容器温度迅速升高到973 K以上，TiCl3的镁热还原过程高速进行。还原后的反应产物氯化镁（MgCl2）和多余的镁通过浸出或真空蒸馏除去。研究了排水和真空蒸馏相结合的高效分离MgCl2和钛金属的工艺。在合适的条件下，可以有效地获得纯度为99.5%的钛。钛反应容器无损伤迹象，证明其适合于镁热还原TiCl3。
The possibility of a high-speed and (semi-)continuous titanium production process by the magnesiothermic reduction of titanium subchloride—titanium dichloride (TiCl2) and/or titanium trichloride (TiCl3)—is discussed. When the TiCl3 feed material and magnesium reductant charged into a titanium reaction container were heated at a rate of 0.056 K/s (3.3 K/min) in an argon atmosphere, the temperature of the container rapidly increased above 973 K, and the magnesiothermic reduction of TiCl3 proceeded at a high speed. After the reduction, the reaction product magnesium chloride (MgCl2) and the excess magnesium were removed by leaching or vacuum distillation. An efficient separation process of MgCl2 from titanium metal by a combination of draining and vacuum distillation was also investigated. Under a suitable condition, titanium with 99.5% purity was efficiently obtained. The titanium reaction container showed no signs of damage, thus proving its suitability for the magnesiothermic reduction of TiCl3.