论文摘要
Mineral liberation analyser（MLA） was applied to quantitatively analyze the rare earth ore from Weishan in Shandong. Mineralogy parameters, such as mineral composition, occurrence states of rare earth elements（REEs） and valuable elements, mineral embedded grain size distribution, mineral association and liberation, are obtained. Results show that the contents of REEs and other valuable elements mainly contained in the ore were La 1.02 wt%, Ce 4.29 wt%, Pr 0.34 wt%, Nd 0.84 wt%, Sr 3.4 wt%and Ba 26.53 wt%, respectively. The REEs mainly occur in bastnaesite and carbocernaite in the form of independent mineral and the contents of bastnaesite and carbocernaite in the ore were 5.96 wt% and12.30 wt%, respectively. 67.34% of strontium occurs in carbocernaite and the rest occurs in celestobarite and strontianite mineral. 92.71% of barium occurs in barite. Liberation of main rare-earth minerals such as bastnaesite and carbocernaite is more than 80% when the grinding fineness is78.42% passing 74 μm. The research results could be employed to provide detailed basic theoretical data for further improvement of the beneficiation process flow and the processing index of rare earth ore, the recycling of other valuable minerals and the comprehensive utilization of tailings.
论文目录
文章来源
类型: 期刊论文
作者: Caili Xu,Chengbin Zhong,Renliang Lyu,Yaoyang Ruan,Zhenyue Zhang,Ru'an Chi
来源: Journal of Rare Earths 2019年03期
年度: 2019
分类: 工程科技Ⅰ辑
专业: 矿业工程
单位: School of Minerals Processing and Bioengineering, Central South University,Key Laboratory of Novel Reactor and Green Chemical Technology of Hubei Province,School of Chemical Engineering and Pharmacy,Wuhan Institute of Technology,Key Laboratory of Green Chemical Process of Ministry of Education,School of Xingfa Mining Engineering,Wuhan Institute of Technology
基金: Project supported by the National Natural Sciences Foundation of China(51734001,41472071)
分类号: TD91
页码: 334-338
总页数: 5
文件大小: 863K
下载量: 33
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