用真空蒸馏法提纯粗硒的研究  

Study on Obtaining Pure Selenium by Vacuum Distillation

作　　者：万雯[1] 杨斌[1] 刘大春[1] 刘永成[1] 杜国山[1] 唐万启[1] 刘媛媛[1] 

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

出　　处：《昆明理工大学学报（理工版）》2006年第3期26-28,共3页Journal of Kunming University of Science and Technology(Natural Science Edition)

摘　　要：从理论上分析了采用真空蒸馏的方法将粗硒提纯除杂的可行性和规律性.通过小型实验考察了蒸馏温度和时间两个因素对提纯效果的影响.确定最佳工艺条件为:蒸馏温度483 K,蒸馏时间20 m in.可获得硒的品位为99%以上.A new technique has been researched on the feasibility and regularity for removing impurities from rude selenium by vacuum distillation in theory analysis. The influence of distillation temperature and time on the effect of purifying selenium is investigated by diminutive experiments. The optimal technical condition is achieved as following： distillation temperature is 483K and distillation time is 20 min. Results show that the content of selenium is more than 99%.

关 键 词：硒 真空蒸馏 饱和蒸汽压 

分 类 号：TF13[冶金工程—冶金物理化学]