摘要
对铋在不同温度（973～1273K）和残压（1．013×105～1.33×10(-1)Pa）条件下蒸馏速率的测定，得到了温度一定时蒸馏速率与残压的关系，临界压强与温度的关系，最大蒸馏速率与温度的关系，进而得到蒸馏过程铋的冷凝系数与温度的关系及活化能。
By measuring the distillation rate of Bi at temperatures of 973~1273 K and at pressuresof 1.013 ×103 ~1.33×10(-1) Pa, We have obtained the relation between the distillation rate of Bi and the remains of pressure. When the temperature is a specially appointed constant, the relation between the critical pressure of Bi and the temperature, and the relation between the maximum distillation rate of Bi and the temperature. Moreower, the condensation coefficient and the activation energy of Bi in vacuum distillation have been calculated.
出处
《真空科学与技术》
CSCD
1994年第4期254-259,共6页
Vacuum Science and Technology
关键词
铋
真空蒸馏率
真空蒸馏
精炼
Vacuum distillation rate, Critical pressure,Condensation coefficient,Activation energy
