Citation: | Zhu Bo, Jiang Xiaoli, Mao Yilin, Luo Liping. Valuable Element Resources and Comprehensive Utilization in the Tailings of Lala Copper Mine, Sichuan Province[J]. Multipurpose Utilization of Mineral Resources, 2023, 44(5): 142-147. doi: 10.3969/j.issn.1000-6532.2023.05.024 |
This is an essay in the field of mining engineering. Lala Copper Mine is a famous copper-iron polymetallic deposit in Sichuan province. In the past several decades of mine production, a large number of industrial solid wastes have been produced, among which several useful elements such as copper, cobalt and gold are still relatively high in tailings, which has great recovery potential. The tailings of Lala Copper Mine have not gone through systematic beneficiation recovery experiment. Based on the study of Lala copper mine tailings samples, on the basis of process mineralogy study, the process of "copper-sulfur mixed flotation-copper-sulfur separation-iron separation from tailings" was used to recover it, and a copper secondary concentrate with Cu grade of 13.38% and recovery of 21.19% was obtained. Sulfur cobalt concentrate with Co grade of 0.32% and recovery of 17.20%; And iron concentrate with TFe grade of 60.99%. After the recovery of valuable elements, mica and silicate minerals were recovered from the tailings to obtain mica concentrate of better quality, and a mica concentrate with K2O grade of 8.67% and recovery of 35.26% was obtained. The tailings recovered from mica were used to prepare silicon fertilizer, the available silicon content of silicon fertilizer product was 38.75%, and the silicon fertilizer raw material could be consumed 43.59%.
[1] | 张淑会, 薛向欣, 刘然, 等. 尾矿综合利用现状及其展望[J]. 矿冶工程, 2005(3):44-47. ZHANG S H, XUE X X, LIU R, et al. Current situation and prospect of the comprehensive utilization of mining tailings[J]. Mining and Metallurgical Engineering, 2005(3):44-47. ZHANG S H, XUE X X, LIU R, et al. Current situation and prospect of the comprehensive utilization of mining tailings[J]. Mining and Metallurgical Engineering, 2005(3): 44-47. |
[2] | 朱兵兵, 田键, 朱艳超, 等. 铜尾矿综合利用现状与展望[J]. 建材世界, 2015, 36(5):84-87. ZHU B B, TIAN J, ZHU Y C, et al. Current situation and prospet of comprehensive utilization of cooper mine tailings[J]. The World of Building Materials, 2015, 36(5):84-87. ZHU B B, TIAN J, ZHU Y C, et al. Current situation and prospet of comprehensive utilization of cooper mine tailings[J]. The World of Building Materials, 2015, 36(5): 84-87. |
[3] | Mason L, Prior T, Mudd G, et al. Availability, addiction and alternatives: three criteria for assessing the impact of peak minerals on society[J]. Journal of Cleaner Production, 2011(19):958-966. |
[4] | Moller T E S. Removal of dissolved heavy metals from acid rock drainage using iron metal[M]. 33. 1999. |
[5] | 赵瑞敏. 我国铁矿尾矿综合利用[J]. 金属矿山, 2009(7):158-163. ZHAO R M. Comprehensive utilization of iron tailings in China[J]. Metal Mine, 2009(7):158-163. ZHAO R M. Comprehensive utilization of iron tailings in China[J]. Metal Mine, 2009(7): 158-163. |
[6] | 陈良, 刘富权, 钱永超, 等. 四川会理红泥坡铜矿工艺矿物学[J]. 矿产综合利用, 2021(3):200-204. CHEN L, LIU F Q, QIAN Y C, et al. Process mineralogy of the Hongnipo Copper deposit in Huili County, Sichuan[J]. Multipurpose Utilization of Mineral Resources, 2021(3):200-204. CHEN L, LIU F Q, QIAN Y C, et al. Process mineralogy of the Hongnipo Copper deposit in Huili County, Sichuan[J]. Multipurpose Utilization of Mineral Resources, 2021(3): 200-204. |
[7] | 朱志敏, 曾令熙, 周家云, 等. 四川拉拉铁氧化物铜金矿床(IOCG)形成的矿相学证据[J]. 高校地质学报, 2009, 15(4):485-495. ZHU Z M, ZENG L X, ZHOU J Y, et al. Lala iron oxide-copper-gold deposit in Sichuan Province: evidences from mineralography[J]. Geological Journal of China Universities, 2009, 15(4):485-495. ZHU Z M, ZENG L X, ZHOU J Y, et al. Lala iron oxide-copper-gold deposit in Sichuan Province: evidences from mineralography[J]. Geological Journal of China Universities, 2009, 15(4): 485-495. |
[8] | 周家云. 四川会理拉拉铜矿地球化学特征及其大陆动力学背景[D]. 成都: 成都理工大学, 2008. ZHOU J Y. The Geochemical characteristics and continental geodynamics of Lala Cooper Mine[D]. Chengdu: Chengdu University of Technology, 2008. |
[9] | 李青锋. 四川省拉拉铜矿床尾矿资源化研究[D]. 成都: 成都理工大学, 2007. LI Q F. The Study on tailings of Lala Cooper deposit recycled use in Sichuan Province, China[D]. Chengdu: Chengdu University of Technology, 2007. |
[10] | 田恩源, 惠博, 陈小青. 拉拉铜矿尾矿工艺矿物学研究[J]. 矿产综合利用, 2020(3):148-152. TIAN E Y, HUI B, CHEN X Q. Study on mineralogy of tailing process in Lala Copper Mine[J]. Multipurpose Utilization of Mineral Resources, 2020(3):148-152. TIAN E Y, HUI B, CHEN X Q. Study on mineralogy of tailing process in Lala Copper Mine[J]. Multipurpose Utilization of Mineral Resources, 2020(3): 148-152. |
[11] | 庞杰, 郑永兴, 戈保梁, 等. 难选氧化铜矿选冶联合技术研究现状与进展[J]. 矿产综合利用, 2019(5):1-5. PANG J, ZHENG Y X, GE B L, et al. Research status and development of the dressing-metallurgy combination processing of refractory copper oxides[J]. Multipurpose Utilization of Mineral Resources, 2019(5):1-5. PANG J, ZHENG Y X, GE B L, et al. Research status and development of the dressing-metallurgy combination processing of refractory copper oxides[J]. Multipurpose Utilization of Mineral Resources, 2019(5): 1-5. |
[12] | 魏洋. 新型降温散热纤维——云母冰凉纤维[J]. 聚酯工业, 2011, 24(6):9-11. WEI Y. A new cooling heat dissipation fiber-cooling-mica fiber[J]. Polyester Industry, 2011, 24(6):9-11. WEI Y. A new cooling heat dissipation fiber-cooling-mica fiber[J]. Polyester Industry, 2011, 24(6): 9-11. |
[13] | 罗立群, 张晓雪, 林永峰, 等. 江西金尾矿资源的性质与绢云母提取研究[J]. 矿产综合利用, 2021(3):1-8. LUO L Q, ZHANG X X, LIN Y F, et al. Properties of gold tailing and sericite separation from gold tailing in Jiangxi Province[J]. Multipurpose Utilization of Mineral Resources, 2021(3):1-8. LUO L Q, ZHANG X X, LIN Y F, et al. Properties of gold tailing and sericite separation from gold tailing in Jiangxi Province[J]. Multipurpose Utilization of Mineral Resources, 2021(3): 1-8. |
Recovery process of valuable elements from Lala copper mine tailings
Overall recycling process of mica mineral