用等离子体加热TiCl_4可以解决高温下TiCl_4腐蚀金属材质的问题。本文对TiCl_4气氛中起弧的可能性以及稳弧的等离子装置操作进行了试验。结果表明,TiCl_4气氛中可以起弧,要求比氩气中高3—4倍的起弧电压。新型等离子装置形成复合气体等离子射流,使起弧容易,又可稳定电弧。等离子装置的中心氮流量很低,可满足氯化法制钛白的工艺要求。 Plasma TiCl_4 can be used to solve the problem of TiCl_4 corrosion metal materials at high temperature. In this paper, the possibility of arcing in the atmosphere of TiCl_4 and the operation of plasma arc-stabilized devices were tested. The results show that the TiCl_4 atmosphere can start arc, requiring 3-4 times higher than the argon arcing voltage. The new plasma device forms a composite gas plasma jet that makes arc easy and stabilizes the arc. The nitrogen flow in the center of the plasma device is very low, which can meet the technological requirements of the titanium chloride process.