改进的热裂解法制备高纯钛的研究  

Processing Research on High Purify Titanium Growth by Improved Thermal Decomposition of Titanium Iodides

作　　者：佘顺利[1] 孙克萍[1] 王克功[1] 陈肖虎[1] 

机构地区：[1]贵州大学材料与冶金学院,贵州贵阳550003

出　　处：《有色金属（冶炼部分）》2010年第6期26-29,共4页Nonferrous Metals（Extractive Metallurgy)

摘　　要：对传统的以高价钛卤盐(TiI4)热裂解制备高纯钛的实验方法进行了改进,使用了低价钛卤盐(TiI2)的热裂解法制备4N高纯钛,使得卤化源区温度、热裂解区(又称沉积区)温度更为优越。并对卤化源区及沉积区温度、高价卤化物的生成、原料中杂质行为以及沉积区低价碘化物的蒸汽压等影响钛沉积速率的因素进行了分析。结果表明:炉内两区温度更易于控制,且可使钛卤盐保持较高的蒸汽压与转移速度,可以有效抑制部分杂质卤化物的转移分解,从而得到制备高纯钛较为理想的沉积速率。The lower valent titanium iodide was substituted for the higher valent titanium iodide to get 4N high purity titanium because it had a superior temperature ranges of source area and deposition area.The influencing factors,such as the temperature ranges of source area and deposition area,the high valent titanium iodides,the impurity of the raw titanium and the vapor pressure of the lower valent titanium iodide,on deposition rate of titanium were analyzed.The results show that a ideal deposition rate of high purify titanium was obtained.

关 键 词：高纯钛 热裂解 沉积速率 

分 类 号：TF823[冶金工程—有色金属冶金]