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首页> 外文OA文献 >New Smelting Process for Titanium: Magnesiothermic Reduction of TiCl4 into Liquid Bi and Subsequent Refining by Vacuum Distillation
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New Smelting Process for Titanium: Magnesiothermic Reduction of TiCl4 into Liquid Bi and Subsequent Refining by Vacuum Distillation

机译：钛的新冶炼工艺：镁热还原法将TiCl4还原为液态Bi，随后通过真空蒸馏进行精炼

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摘要

We demonstrate a new continuous smelting process for Ti that combines magnesiothermic reduction of TiCl4 into liquid Bi and refining by vacuum distillation. TiCl4 is reduced by Mg into liquid Bi to form Bi-Ti liquid alloys, and subsequently refined by vacuum distillation. The Bi-Ti liquid alloys can be easily transferred from a reduction vessel to a refining vessel; consequently, the reduction and refining steps can be performed continuously. Bi-Ti alloys with various compositions were confirmed to form, and the compositions were controllable via adjustment of the nominal composition of TiCl4, Mg, and Bi. After reduction, the alloys were efficiently separated from MgCl2 by differences in their densities. In addition, vacuum distillation of the alloys purified Ti to be greater than 99.6 at pct. Moreover, consideration of the heat balance in the reduction step indicated that the proposed process has the potential to unlimitedly improve the feed rate of TiCl4 when the concentration of Ti in the alloy is 6 to 7 at pct.
机译：我们演示了一种新的连续Ti冶炼工艺，该工艺将镁热还原法将TiCl4还原成液态Bi并通过真空蒸馏进行精炼。 Mg将TiCl4还原为液态Bi，形成Bi-Ti液态合金，然后通过真空蒸馏进行精制。 Bi-Ti液态合金可以很容易地从还原容器转移到精炼容器。因此，还原和精制步骤可以连续进行。确认形成了具有各种组成的Bi-Ti合金，并且可以通过调节TiCl4，Mg和Bi的标称组成来控制组成。还原后，合金通过密度不同而有效地与MgCl2分离。另外，合金的真空蒸馏纯化的Ti在pct处大于99.6。此外，考虑到还原步骤中的热平衡，表明当合金中Ti的浓度为6-7pct时，所提出的方法具有无限提高TiCl4的进料速率的潜力。

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