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›› 2009, Vol. 9 ›› Issue (5): 887-891.

• 反应与分离 • 上一篇    下一篇

真空蒸馏分离Pb-Pt合金

杨春玉 丘克强 林德强   

  1. 中南大学化学化工学院 中南大学化学化工学院 中南大学化学化工学院
  • 收稿日期:2009-04-14 修回日期:2009-07-15 出版日期:2009-10-20 发布日期:2009-10-20
  • 通讯作者: 丘克强

Vacuum Distillation for Separation of Pb-Pt Alloy

YANG Chun-yu QIU Ke-qiang LIN De-qiang   

  1. School of Chemistry and Chemical Engineering, Central South University College of Chemistry and Chemical Engineering , Central South University ,Changsha College of Chemistry and Chemical Engineering , Central South University ,Changsha
  • Received:2009-04-14 Revised:2009-07-15 Online:2009-10-20 Published:2009-10-20
  • Contact: QIU Ke-qiang

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被引次数

17

摘要： 从理论上分析了真空蒸馏分离Pb-Pt合金的可行性，并实验考察了蒸馏温度、蒸馏时间、真空度等因素对Pb-Pt合金分离效果的影响. 结果表明，在蒸馏温度1250 K、真空度30 Pa、蒸馏时间3 h的条件下，含Pt 2.5%~15%(w)的Pb-Pt合金一次蒸馏后，Pb脱除率大于99.88%，Pt的纯度可富集至99%以上. 真空蒸馏方法可有效分离Pb-Pt合金，直接得到纯金属Pb，并可得到较纯的金属Pt，具有工艺流程短、简单高效、无污染等特点.

关键词: 真空蒸馏, 分离, 铅铂合金

Abstract: The vacuum separation of Pb-Pt alloy was studied. Theoretical analyses show that Pb-Pt alloy could be separated by vacuum distillation. The effects of distillation temperature, distillation time and pressure on the vacuum separation were studied. The results show that the removal rate of Pb was more than 99.88% and Pt content in residues was higher than 99% when the Pb-Pt alloy containing 2.5%~15%(w) Pt was distilled for 3 h at 1250 K and 30 Pa. This method has advantages such as short process flow chart, high efficiency and no pollution to the environment.

Key words: vacuum distillation, separation, Pb-Pt alloy

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