Mineralogical characterization and comprehensive utilization of micro-fine tantalum-niobium ores from Songzi

IMR OpenIR

	Mineralogical characterization and comprehensive utilization of micro-fine tantalum-niobium ores from Songzi
其他题名	Mineralogical characterization and comprehensive utilization of micro-fine tantalum–niobium ores from Songzi
	Yuan ZhiTao 1; Lu JiWei 1; Wu HuiFang 2; Liu JiongTian 1
	2015
发表期刊	RARE METALS
ISSN	1001-0521
卷号	34 期号:4 页码:282-290
摘要	The mineralogical characteristics of tantalum-niobium ores from Songzi were investigated using mineral liberation analyzer (MLA) and chemical analysis. In particular, the chemical composition, phase composition, particle size, and dissemination characteristics of the ores were studied in detail. Results show that Ta2O5 and Nb2O5 have grades of 0.013 % and 0.011 %, respectively. The main valuable minerals in the ores are tantalite, columbite, tantalum-niobite, and microlite, and the gangue minerals associated with tantalum-niobium minerals mainly include quartz, kaolinite, illite, feldspar, and mica among others. The minerals are embedded in a complex manner. Tantalum-niobium minerals with most particle sizes of -0.040 mm are disseminated in minerals, such as mica, illite, quartz, and partially intergrown with topaz and zircon, where they could not be easily liberated. Thus, the ores are classified as low-grade, micro-fine, and refractory tantalum-niobium ores. Based on this consideration, the process of classification-gravity concentration-magnetic separation-middlings regrinding and gravity concentration are finally determined and satisfactory indices are obtained. Two rough concentrates are produced: Concentrate I has Ta2O5 and Nb2O5 grades of 7.0292 % and 3.546 %, respectively, as well as recovery of 49.42 % and 35.46 %. By comparison, Concentrate II has Ta2O5 and Nb2O5 grades of 7.0292 % and 3.546 %, respectively, as well as recovery of 49.42 % and 35.46 %.
其他摘要	The mineralogical characteristics of tantalum– niobium ores from Songzi were investigated using mineral liberation analyzer (MLA) and chemical analysis. In particular, the chemical composition, phase composition, particle size, and dissemination characteristics of the ores were studied in detail. Results show that Ta_2O_5 and Nb_2O_5 have grades of 0.013 % and 0.011 %, respectively. The main valuable minerals in the ores are tantalite, columbite, tantalum–niobite, and microlite, and the gangue minerals associated with tantalum–niobium minerals mainly include quartz, kaolinite, illite, feldspar, and mica among others. The minerals are embedded in a complex manner. Tantalum–niobium minerals with most particle sizes of -0.040 mm are disseminated in minerals, such as mica, illite, quartz, and partially intergrown with topaz and zircon, where they could not be easily liberated. Thus, the ores are classified as low-grade, micro-fine, and refractory tantalum–niobium ores. Based on this consideration, the process of classification–gravity concentration–magnetic separation–middlings regrinding and gravity concentration are finally determined and satisfactory indices are obtained. Two rough concentrates are produced: Concentrate I has Ta_2O_5 and Nb_2O_5 grades of 7.0292 % and 3.546 %, respectively, as well as recovery of 49.42 % and 35.46 %. By comparison, Concentrate II has Ta_2O_5 and Nb_2O_5 grades of 7.0292 % and 3.546 %, respectively, as well as recovery of 49.42 % and 35.46 %.
关键词	Mineralogy Tantalum-niobite Comprehensive utilization Micro-fine particles
收录类别	CSCD
语种	英语
资助项目	[National Science Foundation of China] ; [Fundamental Research Funds for the Central Universities] ; [Program for New Century Excellent Talents in University of Ministry of Education of China]
CSCD记录号	CSCD:5416398
引用统计	被引频次：2[CSCD] [CSCD记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/149571
专题	中国科学院金属研究所
作者单位	1.东北大学 2.中国科学院金属研究所
推荐引用方式 GB/T 7714	Yuan ZhiTao,Lu JiWei,Wu HuiFang,et al. Mineralogical characterization and comprehensive utilization of micro-fine tantalum-niobium ores from Songzi[J]. RARE METALS,2015,34(4):282-290.
APA	Yuan ZhiTao,Lu JiWei,Wu HuiFang,&Liu JiongTian.(2015).Mineralogical characterization and comprehensive utilization of micro-fine tantalum-niobium ores from Songzi.RARE METALS,34(4),282-290.
MLA	Yuan ZhiTao,et al."Mineralogical characterization and comprehensive utilization of micro-fine tantalum-niobium ores from Songzi".RARE METALS 34.4(2015):282-290.