用矿物油从四氯化钛中去除钒试验研究

Removal of Vanadium From Titanium Tetrachloride Using Mineral Oil

研究了在液相条件下用矿物油从钛冶金过程中产生的四氯化钛中加热除钒,考察了矿物油种类、饱和烃质量分数对除钒的影响。结果表明:矿物油碳化过程引起体系黏度变化,进而引起链烃芳构化;矿物油饱和烃质量分数越高,除钒效果越差;芳烃质量分数越高,高黏度体系历程越短;矿物油添加量为TiCl_4质量的0.3%~0.4%时,可得到钒质量分数小于3×10^(-4)%的TiCl_4。

Using mineral oil to remove vanadium from titanium tetrachloride was researched.The influence of different oils and saturated hydrocarbons content in the oils on removal of vanadium were examined.The results show that the carbonation process of mineral oil causes the system viscosity changes and chain hydrocarbon aromatization.The higher saturated hydrocarbons content in oil will get a worse vanadium removing effect.The higher aromatic hydrocarbon content can reduce the shorter time of high system viscosity process.When the oil adding amount is 0.3% ~0.4% of TiCl4,the vanadium mass fraction in TiCl4 is less than 3×10^-4%.