Preparation of high-purity Indium by Vacuum Instillation

摘要

In this paper, a theoretical analysis was applied to analyze the possibility of preparation of high-purity indium by vacuum instillation. The relationship of distillation temperature, distillation time, metal evaporation rate and elimination the mixed effect have been discussed. The best conditions of Vacuum distillation purifying indium were as follows: vacuum for 10 ～ 20Pa, distillation temperature for 950 ℃, distillation time for 120min. At this time volatile of indium was only 36.6 percent rate and the rate of removal of thallium was more than 99%.