论文部分内容阅读
电解法制取难熔金属虽已有三、四十年的历史,但目前仍处于研究发展的阶段。几个主要困难尚未得到根本解决,因此至今只有钽的电解实现了工业化。由于近代科学技术和工业的发展对高温、耐蚀和抗氧化的结构材科提出了日益增高的要求,目前工业上提炼难熔金属所通用的化学还原法一般都比较复杂,并且不能连续生产,因此寻求新的、更合理的还原制备难熔金属的方法,就成了不少化学与冶金工作者的研究对象。近年来已有几篇综述发表,从不同角度对难
Electrolysis method to obtain refractory metals, although three or four decades of history, but is still in the research and development stage. Several major difficulties have not yet been fundamentally solved, so so far only tantalum electrolysis industrialization. Due to the development of modern science and technology and industry, high temperature, corrosion resistance and oxidation resistant structural material families have been put forward ever increasing requirements. At present, chemical reduction methods commonly used in the industry for refining refractory metals are generally complicated and can not be continuously produced. Therefore, the search for new and more reasonable method for the reduction of refractory metals has become the object of study for many chemical and metallurgical workers. Several reviews have been published in recent years, from different perspectives