Cheng W.,Hunan Research Institute of Rare Earth Materials |
Huang M.,Hunan Research Institute of Rare Earth Materials |
Su Z.,Hunan Research Institute of Rare Earth Materials |
Wang Z.,Hunan Research Institute of Rare Earth Materials |
And 3 more authors.
Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering | Year: 2015
Erbium is the raw material of many functional materials, and its purity has a significant effect on the properties of functional material. Combined the rare-earth metal preparation process, the preparation process of high purity Er was studied, and the optimum conditions was confined as following: the reducing agent 10% excess, the reduction temperature 1570℃, the holding time 10 min, and the yield of metal more than 95%, which can be used to support the industrial production. The effect of ErF3 phase on the reduction process was analyzed, while the effect of equipments used in the distillation process was contrasted. The purity of Erbium can be 99.9904 wt%, when the multiple distillation process was conducted in a Tantalum-furnace which has high vacuum and clean environment. ©, 2015, Rare Metals Materials and Engineering Press. All right reserved.