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为了研究杂貭对銻的性能的影响,需要获得很純的銻原料。区域熔炼法是目前广泛采用提炼超純元素最有效的方法。但是,此法不能用于除去分布系数近于1的杂貭。而銻中的主要杂貭是砷,它对銻的分布系数是近于1的。Tanenbaum,Goss和Pfann等經过40次区域熔炼,都未能将砷从銻中除去。用水平分段分餾提純,可以得到显著效果。水平分段分餾法是利用了两个温度区:高温蒸发区和低温凝結区。如图1。
In order to study the influence of miscellaneous jade on the performance of antimony, it is necessary to obtain a very pure antimony raw material. The regional melting method is the most effective method of refining ultra-pure elements. However, this method can not be used to remove impurities with a distribution factor close to 1. The main impurities in antimony is arsenic, its distribution coefficient of antimony is close to 1. Tainnbaum, Goss and Pfann, etc. after 40 regional melting, were unable to remove arsenic from antimony. Subsection with horizontal distillation, you can get significant results. Horizontal fractionation is the use of two temperature zones: high temperature evaporation zone and low temperature condensation zone. Figure 1.