Comprehensive Utilization Evaluation of Tantalum-niobium-beryllium Rare Metal Deposits in Renli Deposit, Hunan Province

ZHOU Fangchun; SU Junnan; LI Jiankang; LIU Xiang; HUANG Zhibiao; LI Peng; HUANG Xiaoqiang; CHEN Hu; HU Xiaofang; ZENG Le

doi:10.13779/j.cnki.issn1001-0076.2020.07.001

2020 Vol. 40, No. 2

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Article navigation > Conservation and Utilization of Mineral Resources > 2020 > 40(2): 112-118

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ZHOU Fangchun, SU Junnan, LI Jiankang, LIU Xiang, HUANG Zhibiao, LI Peng, HUANG Xiaoqiang, CHEN Hu, HU Xiaofang, ZENG Le. Comprehensive Utilization Evaluation of Tantalum-niobium-beryllium Rare Metal Deposits in Renli Deposit, Hunan Province[J]. Conservation and Utilization of Mineral Resources, 2020, 40(2): 112-118. doi: 10.13779/j.cnki.issn1001-0076.2020.07.001

Citation:

ZHOU Fangchun, SU Junnan, LI Jiankang, LIU Xiang, HUANG Zhibiao, LI Peng, HUANG Xiaoqiang, CHEN Hu, HU Xiaofang, ZENG Le. Comprehensive Utilization Evaluation of Tantalum-niobium-beryllium Rare Metal Deposits in Renli Deposit, Hunan Province[J]. Conservation and Utilization of Mineral Resources, 2020, 40(2): 112-118. doi: 10.13779/j.cnki.issn1001-0076.2020.07.001

Comprehensive Utilization Evaluation of Tantalum-niobium-beryllium Rare Metal Deposits in Renli Deposit, Hunan Province

1.
No. 311 Geological Party of Hunan Nuclear Geological Bureau, Changsha 410100, China
2.
MNR Key Laboratory of Metallogeny and Mineral Assessment, Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing 100037, China
3.
Hunan Eco-enviromnenal Affairs Center, Changsha 410014, China

Received Date: 02 March 2020

Publish Date: 25 April 2020

Abstract

Abstract

The Renli deposit of Hunan Province is a high-grade and super large rare metal deposit in East China with Ta₂O₅ grade of 0.036% and Nb₂O₅ grade of 0.047%. The main useful minerals are tantalum-niobium minerals, beryl, mica, feldspar and the associated minerals such as lepidolite, tourmaline, garnet etc. The Nb-Ta minerals are mainly distributed in albite and quartz in medium-coarse grained muscovite pegmatite as massive, granular, acicular and schistose, and a few are distributed in muscovite, beryl, apatite and tourmaline, with coarse grain size. Beryl is mainly in massive and granular. In this study, the process of recovery of tantalum and niobium with spiral chute and shaker tables and flotation recovery of mica form gravity separation and flotation recovery of beryl form mica flotation tailings were introduced. The Ta₂O₅ recovery of tantalum concentrate (Ta₂O₅ 20.36%, Nb₂O₅ 19.87%) is 73.53%, BeO recovery of beryllium concentrate (BeO 8.69%) is 65.92%, Rb₂O recovery of mica concentrate (Al₂O₃ 24.26%, Li₂O 0.25%, Rb₂O 0.25%) is 67.10%. The research shows that Renli deposit is rich in rare metal and non-metal mineral resources, with the characteristics of high ore quality, easy separation and high recovery. The deposit has high comprehensive recovery rate of rare metals (69.73%) and comprehensive utilization rate of mineral resources (89.60%). It has high economic value of development and utilization, and can be explored efficiently as a Green mine without tailings.
- tantalum-niobium /
- beryllium /
- comprehensive utilization /
- evaluation /
- renli deposit

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