Process and Mechanism of Sulfate Roasting-Water Extraction of Lithium from Lithium Mica Ore

Kang Min; Zhao Xiaoyi; Cao Huan; Liang Xiao; Wang Yong; Guo Cailian

doi:10.3969/j.issn.1000-6532.2023.06.022

2023 No. 6

Article Contents

Article navigation > Multipurpose Utilization of Mineral Resources > 2023 > 44(6): 146-153

Next Article Previous Article

Kang Min, Zhao Xiaoyi, Cao Huan, Liang Xiao, Wang Yong, Guo Cailian. Process and Mechanism of Sulfate Roasting-Water Extraction of Lithium from Lithium Mica Ore[J]. Multipurpose Utilization of Mineral Resources, 2023, 44(6): 146-153. doi: 10.3969/j.issn.1000-6532.2023.06.022

Citation:

Kang Min, Zhao Xiaoyi, Cao Huan, Liang Xiao, Wang Yong, Guo Cailian. Process and Mechanism of Sulfate Roasting-Water Extraction of Lithium from Lithium Mica Ore[J]. Multipurpose Utilization of Mineral Resources, 2023, 44(6): 146-153. doi: 10.3969/j.issn.1000-6532.2023.06.022

Process and Mechanism of Sulfate Roasting-Water Extraction of Lithium from Lithium Mica Ore

Northwest Institute of Nonferrous Geology, Engineering Research Center for Comprehensive Utilization of Mineral Resources in Shaanxi Province, Xi'an, Shaanxi, China

Received Date: 12 July 2022

Publish Date: 25 December 2023

Abstract

Abstract

This is an essay in the field of metallurgical engineering. Taking a lithium mica ore in Jiangxi as raw material, the roasting-leaching, mixed acid ripening, direct acid leaching and alkali pressure cooking process were explored. Finally, the sulfate roasting-water leaching method was used to extract lithium from lithium mica ore. At the same time, the effects of roasting temperature, roasting time, additive type, additive amount, liquid-solid ratio and leaching temperature on lithium leaching rate were studied. The results show that roasting temperature has a great influence on lithium leaching rate, and the leaching effect of lithium is better in the appropriate roasting temperature range. 40% potassium sulfate, 20% sodium sulfate and 20% calcium oxide were added to the lithium mica ore, calcinated at 900 ℃ for 1 h, and the calcine was leached at room temperature for 1 h according to the liquid-solid ratio of 1∶1. The lithium leaching rate reached 94.87%. This shows that the effect of using sulfate as an additive to roast and extract lithium is better. Through the study of the roasting mechanism, it can be seen that the mineral structure is reconstructed after the addition of sulfate after high temperature roasting. The sodium and potassium ions in the ore are replaced with lithium ions in the lithium mica, so that they are separated from the insoluble aluminum silicate minerals to generate soluble lithium sulfate, which is then immersed in water and then into the solution.
- Metallurgical engineering /
- Lithium mica /
- Sulfate /
- Calcination /
- Leach /
- Mechanism

FullText(HTML)

References

[1]	吴西顺, 王登红, 黄文斌, 等. 全球锂矿及伴生铍铌钽的采选冶技术发展趋势[J]. 矿产综合利用, 2019(1):1-6. WU X S, WANG D H, HUANG W B, et al. Global technical development trends of litihium minerals and associated beryllium-niobium-tantalum exploitation[J]. Multipurpose Utilization of Mineral Resources, 2019(1):1-6. Google Scholar WU X S, WANG D H, HUANG W B, et al. Global technical development trends of litihium minerals and associated beryllium-niobium-tantalum exploitation[J]. Multipurpose Utilization of Mineral Resources, 2019(1): 1-6. Google Scholar
[2]	李成秀, 程仁举, 刘星. 我国锂辉石选矿技术研究现状及展望[J]. 矿产综合利用, 2021(5):1-8. LI C X, CHENG R J, LIU X. Research status and prospects of spodumene ore beneficiation technology in China[J]. Multipurpose Utilization of Mineral Resources, 2021(5):1-8. Google Scholar LI C X, CHENG R J, LIU X. Research status and prospects of spodumene ore beneficiation technology in China[J]. Multipurpose Utilization of Mineral Resources, 2021(5): 1-8. Google Scholar
[3]	Wei Xiang, Shengke Liang, Zhiyong Zhou, et al . Extraction of lithium from salt lake brine containing borate anion and high concentration of magnesium[J]. Hydrometallurgy, 2016, 166. Google Scholar
[4]	Xiang Zhong Kong, Hua Ye, Yu Qin. Factors of extracting lithium from lepidolite by sulfate roasting and dilute sulphuric acid leaching[J]. Applied Mechanics and Materials, 2014, 3013(522-524). Google Scholar
[5]	雷祖伟, 钟宏. 含铷、铯锂云母矿的复合盐焙烧-浸出性能及机理[J]. 矿产综合利用, 2019(3):152-158. LEI Z W, ZHONG H. Composite salt roasting-leaching performance and mechanism of lepidolite containing rubidium and cesium[J]. Multipurpose Utilization of Mineral Resources, 2019(3):152-158. Google Scholar LEI Z W, ZHONG H. Composite salt roasting-leaching performance and mechanism of lepidolite containing rubidium and cesium[J]. Multipurpose Utilization of Mineral Resources, 2019(3): 152-158. Google Scholar
[6]	徐正震, 梁精龙, 李慧, 等. 含锂资源中锂的提取研究现状及展望[J]. 矿产综合利用, 2021(5):32-37. XU Z Z, LIANG J L, LI H, et al. Research status and prospects of lithium extraction from lithium containing resources[J]. Multipurpose Utilization of Mineral Resources, 2021(5):32-37. Google Scholar XU Z Z, LIANG J L, LI H, et al. Research status and prospects of lithium extraction from lithium containing resources[J]. Multipurpose Utilization of Mineral Resources, 2021(5): 32-37. Google Scholar
[7]	周贺鹏, 耿亮, 郭亮, 等. 江西宜春低品位锂云母矿综合回收工艺研究[J]. 非金属矿, 2020, 43(4):59-61+98. ZHOU H P, GENG L, GUO L, et al. Experimental study on comprehensive recovery of low-grade lepidolite in Yichun, Jiangxi Province[J]. Non-Metallic Mines, 2020, 43(4):59-61+98. Google Scholar ZHOU H P, GENG L, GUO L, et al. Experimental study on comprehensive recovery of low-grade lepidolite in Yichun, Jiangxi Province[J]. Non-Metallic Mines, 2020, 43(4): 59-61+98. Google Scholar
[8]	孙友润. 提高锂云母-石灰石烧结法Li₂O回收率的途径[J]. 稀有金属与硬质合金, 2000, 143(4):23-27. SUN Y R. Approach to improve the recovery of Li₂O by Li mica-limestone sintering process[J]. Rare Metals and Cemented Carbides, 2000, 143(4):23-27. Google Scholar SUN Y R. Approach to improve the recovery of Li₂O by Li mica-limestone sintering process[J]. Rare Metals and Cemented Carbides, 2000, 143(4): 23-27. Google Scholar
[9]	柳林, 刘磊, 张亮, 等. 氯化焙烧—水浸从锂云母精矿中提锂实验[J]. 有色金属(冶炼部分), 2021(2):72-76. LIU L, LIU L, ZHANG L, et al. Research on recovery of lithium from lepidolite concentrate by chlorination roasting and water leaching[J]. Nonferrous Metals (Extractive Metallurgy), 2021(2):72-76. Google Scholar LIU L, LIU L, ZHANG L, et al . Research on recovery of lithium from lepidolite concentrate by chlorination roasting and water leaching[J]. Nonferrous Metals (Extractive Metallurgy), 2021(2): 72-76. Google Scholar
[10]	张秀峰, 伊跃军, 谭秀民, 等. 硫酸熟化锂云母提取锂铷铯的机理及动力学特征[J]. 中南大学学报(自然科学版), 2021, 52(9): 3093−3102. Google Scholar ZHANG X F, YI Y J, TAN X M, et al. Mechanism and kinetics characteristics of sulfuric acid baking process for extracting lithium, rubidium and cesium from lepidolite[J]. Journal of Central South University(Science and Technology)2021, 52(9): 3093−3102. Google Scholar
[11]	陈亚, 廖婷, 陈白珍, 等. 纯碱压煮法从锂辉石中提取锂的研究[J]. 有色金属(冶炼部分), 2011(9):21-23+32. CHEN Y, LIAO T, CHEN B Z, et al. Extraction of lithium from spodumene by sodium carbonate autoclave process[J]. Nonferrous Metals(Extractive Metallurgy), 2011(9):21-23+32. Google Scholar CHEN Y, LIAO T, CHEN B Z, et al . Extraction of lithium from spodumene by sodium carbonate autoclave process[J]. Nonferrous Metals(Extractive Metallurgy), 2011(9): 21-23+32. Google Scholar
[12]	韩晓, 方迪. 电感耦合等离子体原子发射光谱(ICP-AES)法测定岩矿中锂的含量[J]. 中国无机分析化学, 2021, 11(2):36-39. HAN X, FANG D. Determination of lithium in rock and ore by inductively coupled plasma atomic emission spectrometry (ICP-AES )[J]. Chinese Jorunal of Inorganic Analytical Chemistry, 2021, 11(2):36-39. Google Scholar HAN X, FANG D. Determination of lithium in rock and ore by inductively coupled plasma atomic emission spectrometry (ICP-AES )[J]. Chinese Jorunal of Inorganic Analytical Chemistry , 2021, 11(2): 36-39. Google Scholar