前言目前,国内外工业生产海绵钛的主要方法有两种,即四氯化钛中钛的镁热还原法和钠还原法。用这两种方法生产的海绵钛我们分别叫做“镁法钛”和“钠法钛”。与镁法钛相比,钠法钛杂质含量除了氯偏高以外,硅、碳和氮等都偏低。从长远来看由于钠法钛比镁法钛工业生产成本低,而且在我国钠又比镁 Preface At present, there are two main methods for industrial production of titanium sponge at home and abroad, that is, the magnesium reduction method of titanium in titanium tetrachloride and the sodium reduction method. The sponge titanium produced by these two methods are called “magnesium method titanium” and “sodium method titanium”, respectively. Compared with the magnesium method of titanium, sodium content of titanium impurities in addition to high chloride, silicon, carbon and nitrogen are low. In the long run, due to sodium titanium than magnesium titanium industry, low cost, but also in our country than sodium magnesium