真空蒸馏法从含铊渣中脱除镉,锌的研究  

Removing Cd,Zn from Thallium-Containing Dregs by Vacuum Distillation

作　　者：周清平[1] 戴永年[1] 胡劲[2] 姚顺忠[3] 王令博[3] 

机构地区：[1]昆明理工大学真空冶金及材料研究所,云南昆明650093 [2]昆明理工大学材料与冶金工程学院,云南昆明650093 [3]西南林学院交通机械与土木工程学院,云南昆明650224

出　　处：《稀有金属》2009年第5期733-736,共4页Chinese Journal of Rare Metals

基　　金：真空冶金国家工程实验室项目;云南省有色金属真空冶金重点实验室项目资助

摘　　要：采用真空蒸馏法代替传统方法从含铊渣中脱除镉和锌。从理论上分析了铊与上述杂质分离的可能性,通过实验研究了采用真空蒸馏法从含铊渣中脱除镉、锌的最佳工艺条件。实验表明,控制蒸馏温度560℃,恒温时间40min,即可使残余物中镉、锌的含量降低到0.27%,0.0072%,铊的挥发率为1.49%。与其他方法相比,真空蒸馏法具有流程短、能耗低、无污染、无中间渣、劳动强度低、生产成本低等优点。A vacuum distillation method instead of traditional methods to remove cadmium and zinc from thallium-containing residue was introduced. The possibility of separation of thallium from cadmium and zinc was analyzed theoretically, The optimum process condition for removal of cadmium, zinc from the residue containing thallium was established. The results showed that the content of cadmium, zinc in the residue could be reduced to 0. 27% and 0. 0072% respectively, and the evaporation rate of thallium was 1.49% when distillation was performed at 560℃ for 40 min. Comparing with other methods, vacuum distillation had the advantage of shorter flow sheet, lower energy-consumption, pollution-free, no intermediate slag, lower labor-intensity, and lower production costs.

关 键 词：铊 真空蒸馏 脱杂 

分 类 号：TF803.14[冶金工程—有色金属冶金]