中文摘要：

采用真空蒸馏法从锡锌合金粉中分离锡和锌，考察了还原剂、蒸馏温度、蒸馏时间对锡、锌直收率的影响．结果表明，采用活性炭作还原剂，在蒸馏温度1373K、蒸馏时间30min、原料质量100g、活性炭6g的条件下，锡和锌的直收率分别为82．40％和83．62％，残留物中锡纯度为99．31％，挥发物中锌纯度为99．58％．真空条件下，锡富集在液相残留物中，锌富集在气相挥发物中．锡锌合金粉中SnO2与ZnO反应，产物为锡酸锌．真空条件下还原SnO2和ZnO比标准状态下更具优越性．

英文摘要：

Effects of reducing agent, distillation temperature and distillation time on recycling tin and zinc from Sn-Zn alloy powders were investigated by using a vacuum distillation method. The results demonstrated that the direct yield of tin and zinc can respectively reach to 82.40% and 83.62%, the purity of tin in the residue was 99.31% and the purity of zinc in volatile was 99.58% after using activated carbon as reducing agent under the optimized conditions with distillation temperature of 1373 K, distillation time of 30 rain, 100 g raw material and 6 g activated carbon. Under vacuum condition, zinc and tin enriched in gas phase and liquid phase, respectively. Tin oxide and zinc oxide reacted in the Sn-Zn alloy, and the zinc stannate was the product, the reduction of tin oxide and zinc oxide were superior under vacuum conditions than that under standard state.