| 高铜铅冰铜氧压浸出 |
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| 引用本文： | 王子彪,何贵香,占焕武,银星波,马宝军,魏涛,王国倩,蒋学先,陈爱良.高铜铅冰铜氧压浸出[J].矿冶工程,2022,42(6):122-126. |
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| 作者姓名： | 王子彪 何贵香 占焕武 银星波 马宝军 魏涛 王国倩 蒋学先 陈爱良 |
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| 作者单位： | 1.中南大学 冶金与环境学院, 湖南 长沙410083;
2.桂林理工大学 南宁分校, 广西 扶绥 532100;
3.广西南国铜业有限责任公司, 广西 扶绥 532103 |
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| 基金项目： | 广西重点研发计划项目(2021AB26024);
广西科技重大专项(桂科AA22067077);
广西创新驱动发展专项(2020AA17001AA) |
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| 摘 要： | 为回收含铜44.7%的高铜铅冰铜中的有价金属, 进行了氧压酸浸实验研究。考察了初始硫酸浓度、氧压、时间、温度、液固比和木质素用量对浸出效果的影响, 结果表明, 氧压酸浸高铜铅冰铜的适宜工艺条件为: 浸出温度140 ℃、氧分压0.5 MPa、浸出时间4 h、液固比7∶1、初始硫酸浓度180 g/L, 该条件下Cu、As、Fe、Sb、Pb浸出率分别为99.57%、12.24%、86.33%、85.73%、38.10%, 实现了铜的高效浸出。浸出渣主要成分为PbSO4, 实现了铅冰铜中铜与铅的分离。木质素用量对铅冰铜中有价金属的浸出效果影响较小。
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| 关 键 词： | 铅冰铜 砷 氧压浸出 硫酸浸出 |
| 收稿时间： | 2022-05-26 |
Oxygen Pressure Leaching of Lead Matte with High Content of Copper |
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| WANG Zi-biao,HE Gui-xiang,ZHAN Huan-wu,YIN Xing-bo,MA Bao-jun,WEI Tao,WANG Guo-qian,JIANG Xue-xian,CHEN Ai-liang.Oxygen Pressure Leaching of Lead Matte with High Content of Copper[J].Mining and Metallurgical Engineering,2022,42(6):122-126. |
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| Authors: | WANG Zi-biao HE Gui-xiang ZHAN Huan-wu YIN Xing-bo MA Bao-jun WEI Tao WANG Guo-qian JIANG Xue-xian CHEN Ai-liang |
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| Affiliation: | 1.School of Metallurgy and Environment, Central South University, Changsha 410083, Hunan, China;
2.Guilin University of Technology at Nanning, Fusui 532100, Guangxi, China;
3.Guangxi Nanguo Copper Industry Co Ltd, Fusui 532103, Guangxi, China |
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| Abstract: | An experiment was performed to recover valuable metals from lead matte with high copper content (44.7% Cu) by using oxygen pressure acid leaching process. The effect of initial sulfuric acid concentration, oxygen pressure, leaching time and temperature, liquid-to-solid ratio and lignin dosage on the leaching effect were investigated. The results show that oxygen-pressure acid leaching of high copper lead matte under the proper processing conditions, including a leaching temperature of 140 ℃, oxygen partial pressure of 0.5 MPa, reaction time of 4 h, liquid-solid ratio of 7∶1, and initial sulfuric acid concentration of 180 g/L, can lead to the leaching rates of Cu, As, Fe, Sb and Pb up to 99.57%, 12.24%, 86.33%, 85.73% and 38.10%, respectively. An efficient leaching of copper can be actualized. The left leaching residue has PbSO4 as its main component, indicating a good separation of Cu and Pb from lead matte. Furthermore, the dosage of lignin brings little impact to the leaching effect of valuable metals. |
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| Keywords: | lead matte arsenic oxygen-pressure leaching sulfuric acid leaching |
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