综述了制备金属钛的几种方法,如镁还原法,钙还原法,钠还原法,熔盐电解法等,着重介绍了在这几种方法基础上发展而来的新工艺、新方法,其中包括直接化学还原TiO2的FFC剑桥工艺、导电介入还原法(EMR)、机械化学法(MCP)、预成型还原法(PRP),在分析各种方法的生产原理、特点以及其发展前途的基础上, 发现以TiCl4为原料的钛的生产工艺,在降低成本和某些杂质(如Cl)含量的问题上普遍存在困难.未来钛冶金的发展方向是用还原二氧化钛为基础的连续式生产技术代替间歇式的Kroll法生产技术,并大力降低原材料和生产的成本.
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