With the wide application of lead acid battery, spent lead acid battery has become a serious problem to environmental protection and human health. Though spent battery can be a contaminant if not handled properly, it is also an important resource to obtain refined lead. Nowadays, the Sb-content in lead storage batteries is about 0.5-3 wt%, which is higher than the Sb-content in the crude lead. However, there are few reports about the process of removing antimony from high-antimony lead bullion. In this study, vacuum displacement reaction technology, a new process for removing antimony from high-antimony lead melts, was investigated. During this process, lead oxide was added to the system and antimony from lead melts was converted into antimony trioxide, which easily was evaporated under vacuum so that antimony was removed from lead melts. The experimental results demonstrated that Sb-content in lead melts decreased from 2.5% to 23 ppm under following conditions: mass ratio of PbO/lead bullion of 0.33, residual gas pressure of 30 Pa, melt temperature of 840 ºC, reaction time of 60 min. The distillate gotten can be used as by-product to produce antimony white. Moreover, this study is of importance to recycling of waste lead storage batteries alloy.

随着铅酸电池的广泛应用，废铅酸电池已经成为环境保护和人体健康的严重问题。尽管如果处理不当，废电池可能会成为污染物，但它也是获得精炼铅的重要资源。如今，铅蓄电池中的Sb含量约为0.5-3 wt％，高于粗铅中的Sb含量。然而，关于从高锑铅锭中去除锑的过程的报道很少。在这项研究中，研究了真空置换反应技术，这是一种从高锑铅熔体中除去锑的新工艺。在此过程中，将氧化铅添加到系统中，并将来自铅熔体的锑转化为三氧化二锑，该三氧化锑易于在真空下蒸发，从而从铅熔体中去除了锑。实验结果表明，在以下条件下，铅熔体中的Sb含量从2.5％降至23 ppm：PbO /铅块的质量比为0.33，残余气体压力为30 Pa，熔体温度为840ºC，反应时间为60分钟。得到的馏出液可以用作副产品来生产锑白。而且，该研究对于回收废铅蓄电池合金是重要的。