| 从云南某高硫铅锌矿尾矿中综合回收锌的试验研究 |
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| 引用本文： | 杨波 童雄 王晓 解永刚 谢贤. 从云南某高硫铅锌矿尾矿中综合回收锌的试验研究[J]. 过程工程学报, 2021, 21(6): 704-712. DOI: 10.12034/j.issn.1009-606X.220177 |
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| 作者姓名： | 杨波 童雄 王晓 解永刚 谢贤 |
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| 作者单位： | 昆明学院,云南昆明650214;金属矿尾矿资源绿色综合利用国家地方联合工程研究中心,云南昆明650093;省部共建复杂有色金属资源清洁利用国家重点实验室,云南昆明650093;昆明理工大学国土资源工程学院,云南昆明650093;金属矿尾矿资源绿色综合利用国家地方联合工程研究中心,云南昆明650093;省部共建复杂有色金属资源清洁利用国家重点实验室,云南昆明650093;昆明学院,云南昆明650214;金属矿尾矿资源绿色综合利用国家地方联合工程研究中心,云南昆明650093;昆明学院,云南昆明650214 |
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| 基金项目： | 杂质元素取代对ZnS晶体结构及界面化学反应性质的影响机制研究;多组元体系下硫化矿物间的交互作用及其对矿物表面化学反应的影响机制;杂质元素取代对ZnS晶体结构及 性质影响的DFT计算模拟研究 |
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| 摘 要： | 云南某高硫铅锌矿尾矿平均含Pb 0.84％、Zn 3.67％,综合回收价值较高,其中含铅矿物主要为方铅矿和白铅矿,含锌矿物主要为闪锌矿和菱锌矿.实验室选矿试验研究表明,采用"硫化矿优先浮选-浮硫尾矿脱泥-氧化锌浮选"工艺可较好地实现尾矿中有价矿物的高效回收,进一步研究发现在氧化锌浮选过程中,粗选和扫选分别采用不同碳链长...
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| 关 键 词： | 铅锌尾矿 综合回收 氧化锌浮选 胺类捕收剂 |
| 收稿时间： | 2020-06-09 |
Study on the comprehensive recovery of zinc from tailings of a lead-zinc ores from Yunnan province |
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| Bo YANG Xiong TONG Xiao WANG Yonggang XIE Xian XIE. Study on the comprehensive recovery of zinc from tailings of a lead-zinc ores from Yunnan province[J]. Chinese Journal of Process Engineering, 2021, 21(6): 704-712. DOI: 10.12034/j.issn.1009-606X.220177 |
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| Authors: | Bo YANG Xiong TONG Xiao WANG Yonggang XIE Xian XIE |
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| Affiliation: | 1. Kunming University, Kunming, Yunnan 650214, China2. Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650093, China3. National & Local Joint Engineering Research Center for the Green and Comprehensive Utilization of Metallic Tailings Resource, Kunming, Yunnan 650093, China4. State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming, Yunnan 650093, China |
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| Abstract: | Tailings of Pb–Zn ores from Yunnan province of China are of high sulfur content and contains the Pb 0.84% and the Zn 3.67% respectively, it is economic to comprehensive recovery these valuable minerals from the tailings. The results from processing mineralogy of these tailings, the Pb-containing minerals existed mainly as galena and cerusite and the Zn-containing minerals as sphalerite and smithsonite. The laboratory-scale flotation experiment indicated that the valuable minerals were effectively recovered by the differential flotation of sulfide minerals, followed by the desliming and flotation of smithsonite. It is also found that the recovery and grade of Zn concentrate are significantly improved by using the amine collector with the different chain lengths during the roughing and scavenging flotation stage of zinc oxide minerals. Besides, these problems such as a large amount of foam and the difficulty in defoaming existed in the flotation of smithsonite were avoided by using the different chain lengths amine collector. The recovery rate and grade of zinc sulfide concentrates were 23.46% and 13.04%, and the recovery rate and grade of zinc oxide concentrates were 27.86% and 51.69% respectively. The total recovery rate of Zn concentrates was 64.73%. The “Sulphide Ore Priority Flotation-Floating Sulfur Tailings Desliming-Zinc Oxide Flotation” process successfully realized the efficient recovery of lead and zinc minerals in the tailings. In addition, organic amine salts with different carbon chain lengths are used as collectors in the roughing and sweeping stages of zinc oxide, which successfully solves the problems of defoaming difficulties and low concentrate grades that are common in the zinc oxide flotation process. It realizes the efficient recovery of valuable minerals in the tailings, and provides an important basis for the reutilization of this tailings. |
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| Keywords: | tailings of lead-zinc ores comprehensive recovery flotation of oxide zinc amine collectors |
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