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Mineralogical characterization and comprehensive utilization of micro-fine tantalum-niobium ores from Songzi
Alternative TitleMineralogical characterization and comprehensive utilization of micro-fine tantalum–niobium ores from Songzi
Yuan ZhiTao1; Lu JiWei1; Wu HuiFang2; Liu JiongTian1
2015
Source PublicationRARE METALS
ISSN1001-0521
Volume34Issue:4Pages:282-290
AbstractThe 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 %.
Other AbstractThe 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 %.
KeywordMineralogy Tantalum-niobite Comprehensive utilization Micro-fine particles
Indexed ByCSCD
Language英语
Funding Project[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 IDCSCD:5416398
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/149571
Collection中国科学院金属研究所
Affiliation1.东北大学
2.中国科学院金属研究所
Recommended Citation
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.
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