Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1637988 | Transactions of Nonferrous Metals Society of China | 2013 | 10 Pages |
Abstract
Activity coefficients of Pb-Sn alloy with different Pb contents at 777 °C were calculated with molecular interaction volume model, which agree well with the available experimental values. Activity coefficients at 800-1300 °C were predicted to supply valuable data for thermodynamic calculation of vacuum distillation. Small-scale and continuous industrialized experiments of vacuum distillation for two different components of Pb-Sn alloys were performed and the lead content in refined tin was decreased to less than 0.01% successfully. Vacuum distillation treatment of Pb-Sn alloy in which lead content fluctuated from 10% to 90% was put forward. The final product is crude lead with purity above 99.5% and refined tin with lead content less than 0.01%.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Guo-bin JIA, Bin YANG, Da-chun LIU,