(中國(guó)科學(xué)院 過(guò)程工程研究所, 北京100080)
摘 要: 簡(jiǎn)要分析了金屬鈦的生產(chǎn)方法， 指出： 由于傳統(tǒng)的Kroll法生產(chǎn)成本高， 限制了鈦的應(yīng)用， 只有開(kāi)發(fā)新的、 連續(xù)化的生產(chǎn)工藝， 才能從根本上達(dá)到降低生產(chǎn)成本的目的。 系統(tǒng)地總結(jié)了目前國(guó)內(nèi)外正在開(kāi)發(fā)或改進(jìn)的鈦生產(chǎn)工藝，其中包括二氧化鈦的直接電化學(xué)還原法、 鈣熱還原法、 ITP法、 導(dǎo)電體介入反應(yīng)法、 熔鹽電解法以及金屬氫化物還原法， 指出了二氧化鈦的直接電化學(xué)還原法是一種低能耗、無(wú)污染的綠色生產(chǎn)新工藝， 最有希望取代傳統(tǒng)的Kroll法。
關(guān)鍵字: 鈦； 直接電化學(xué)還原法； 提煉技術(shù)
producing titanium metal
（Institute of Process Engineering, The Chinese Academy of Sciences,
Beijing 100080, China）
Abstract:The use of titanium is restricted because of its high processing cost. The conventional process for producing titanium metal was analyzed briefly. It indicates that only exploring new continuous process could significantly decrease the produce cost of titanium. The researching and developing of new technologies are introduced, including direct electrochemical reduction of TiO2, calciothermic reaction, ITP process, electronically mediated reaction, molten salt electrolytic process and metal-hydride reduction. It points that direct electrochemical reduction of TiO2 is a new green process with low energy consumption and non-pollution, and can replace the conventional Kroll process.
Key words: titanium; direct electrochemical reduction; extractive technology
