Co-precipitation purification new process for leaching solution of beryllium ore containing high fluorine

被引：0

作者：

Ma, Jin ^{[1
]}

Sang, Li ^{[2
]}

Zhang, Enyu ^{[1
]}

Gong, Dalei ^{[1
]}

Lu, Xingwu ^{[1
]}

Shao, Chuanbing ^{[1
]}

机构：

[1] Key Laboratory of New Process for Nonferrous Metal Smelting and Rare Metal High Utilization Efficiency in Gansu Province, Institute for Metallurgy and New Materials of Northwest Research Institute of Mining and Metallurgy, Baiyin

[2] Xiang Guang Copper Co., Ltd, Liaocheng

来源：

Xiyou Jinshu/Chinese Journal of Rare Metals | 2015年 / 39卷 / 05期

关键词：

Beryllium ores; Co-precipitation; Fluorine; Purification;

D O I：

10.13373/j.cnki.cjrm.2015.05.013

中图分类号：

学科分类号：

摘要：

Beryllium is usually extracted from mineral ores at present, and the minerals are mainly beryl, bertrandite or phenakite, etc. With the increasing depletion of beryllium mineral resources, alternative beryllium mineral resources should be sought, thus the exploitation of beryllium minerals continues to expand. However, these alternative beryllium minerals generally contain large amounts of fluorite, and the content of fluorine is very high in the ores; in the smelting process for producing industrial beryllium oxide, it is usually required that the fluorine to beryllium ratio of these minerals is less than 10%, and if the fluorine content in the minerals is high, it will seriously affect the quality of industrial beryllium oxide and smelting recovery rate. Therefore, it is the key to remove fluoride from leaching solution and thus eliminate the effect of fluoride during the fluoride beryllium minerals smelting process. The purification process of high fluorine beryllium minerals leaching solution was studied, and a co-precipitation method of purifying beryllium-containing leach solution was put forward. In the purification process, the influencing factors such as final pH, temperature, time, and concentration of ammonium sulfate were studied. The co-precipitation conditions were: pH=3.5~4.0, temperature of 95℃, time of 6 h, precipitant(ammonia) concentration of 10%. The precipitate was slurried and washed using 0.5 mol·L-1 ammonium sulfate. In this process, the impurity precipitation rates of aluminum, fluorine, iron were more than 97%, and the loss rate of beryllium was about 10%. ©, 2015, Editorial Office of Chinese Journal of Rare Metals. All right reserved.

引用

页码：468 / 472

页数：4

共 15 条

[1] Lei X., Experimental study of fluoride removal in beryllium fluoride ore, Hunan Nonferrous Metals, 20, 1, (2004)
[2] Guo D.Y., Song J.J., Cai L., Cheng J., Mao Y., Formation of anomalous eutectic microstructure in Au-Sn eutectic alloy prepared by melt mixing, Chinese Journal of Rare Metals, 37, 2, (2013)
[3] Liu S.Y., Present status of beryllium production and its development and application, Rare Metals and Cemented Carbides, 12, 4, (1998)
[4] Li A.M., Jiang J.G., Wang H., Fu J.G., The latest development and prospects of beryllium minerals flotation, Rare Metals and Cemented Carbides, 36, 3, (2008)
[5] Zhu W., Liu Z.Q., Chen H.J., Study on beryllium extraction from leaching solution with low-grade rare metal and rare earth complex mineral, Materials Research and Application, 4, 4, (2010)
[6] Quan J., Li C.X., The overview development of beryllium metallurgical processes, Rare Metals and Cemented Carbides, 30, 3, (2002)
[7] Fu J.G., Jiang J.G., Li A.M., Wang H., The latest development of beryllium extraction from beryllium-containing ore, Rare Metals and Cemented Carbides, 37, 1, (2009)
[8] Liu Y., Liu M.D., Liu Z.Z., Wan L., Experimental research on a new metallurgical process to treat low-grade beryllium concentrate, Rare Metals and Cemented Carbides, 42, 2, (2014)
[9] Cheng Q.H., Technology research and practice of beryllium oxide production from non-beryl beryllium ore, China Nonferrous Metallurgy, 6, (2006)
[10] Li A.M., Jiang J.G., Wang H., Fu J.G., The latest development and prospects of beryllium minerals flotation, Rare Metals and Cemented Carbides, 36, 3, (2008)

← 1 2 →