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学者姓名：郭宝
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Abstract ：
为实现浮选过程中矿物颗粒表面化学性质的在线检测,本研究以表面增强拉曼光谱(SERS)技术为基础,利用电沉积法在氧化铟锡(ITO)导电玻璃表面制备纳米金膜,将其作为SERS基底,在金表面通过自组装形成惰性二氧化硅单分子隔绝层,可实现对吸附在矿物颗粒表面的捕收剂分子的原位检测.针对生产过程中矿石品位多变的特性,分别使用竞争自适应重加权算法(CARS)和基于多尺度自动峰值检测(AMPD)算法,对不同辉铜矿含量样本的SERS数据进行特征信号的提取,采用反向神经网络判别算法(BP)和偏最小二乘算法(PLS)构建模型,基于药剂的饱和吸附对辉铜矿含量进行预测.经过对比,AMPD算法选出的特征点能更准确的反映吸附分子的特征峰,并且BP神经网络算法构建的模型精度优于PLS算法.AMPD-BP神经网络模型预测均方根误差(RMSEP)为0.02664,相关系数(R)为0.9755,模型表现出良好的预测性能.SERS法结合机器学习能够实现浮选过程中矿物颗粒表面性质的在线检测,为药剂吸附量的检测和浮选智能优化系统提供方法支持.
Keyword ：
原位检测 原位检测 机器学习 机器学习 表面增强拉曼光谱(SERS) 表面增强拉曼光谱(SERS) 辉铜矿 辉铜矿
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| GB/T 7714 | 郭晋盛 , 董伟楠 , 张克灿 et al. 基于表面增强拉曼光谱的矿物颗粒浮选药剂吸附的在线分析与预测模型研究 [J]. | 分析试验室 , 2025 , 44 (3) : 432-439 . |
| MLA | 郭晋盛 et al. "基于表面增强拉曼光谱的矿物颗粒浮选药剂吸附的在线分析与预测模型研究" . | 分析试验室 44 . 3 (2025) : 432-439 . |
| APA | 郭晋盛 , 董伟楠 , 张克灿 , 郭宝 . 基于表面增强拉曼光谱的矿物颗粒浮选药剂吸附的在线分析与预测模型研究 . | 分析试验室 , 2025 , 44 (3) , 432-439 . |
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选用适宜的浮选质量在线监测方法可快速、准确地获取矿浆品位等浮选产品质量信息,从而对浮选状态作出必要的、及时的调整.为了指导相关从业人员科学、准确地选择和运用现有的浮选质量在线监测方法,在系统介绍了不同在线监测方法机理的基础上,逐一回顾了各方法在国内外的应用情况,并对各技术的特点、应用现状及优缺点进行了比较,指出需要结合生产实际环境和精度要求选用合适的监测技术.最后对浮选质量在线监测方法的发展趋势进行了展望.在线监测方法的研发将进一步推动自动化技术在选矿领域的应用,达到稳定生产指标,提高生产效率的目的.
Keyword ：
X荧光品位分析 X荧光品位分析 品位 品位 在线监测 在线监测 拉曼光谱 拉曼光谱 泡沫图像 泡沫图像 浮选 浮选
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| GB/T 7714 | 柳方正 , 陈享享 , 张朝阳 et al. 浮选质量在线监测方法研究现状与进展 [J]. | 金属矿山 , 2025 , (3) : 210-218 . |
| MLA | 柳方正 et al. "浮选质量在线监测方法研究现状与进展" . | 金属矿山 3 (2025) : 210-218 . |
| APA | 柳方正 , 陈享享 , 张朝阳 , 欧阳云飞 , 邱璐 , 黄世毅 et al. 浮选质量在线监测方法研究现状与进展 . | 金属矿山 , 2025 , (3) , 210-218 . |
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In the flotation beneficiation of copper and molybdenum co-occurrence ores, the efficient depression of chalcopyrite is crucial for successful copper-molybdenum separation. However, the consumption of conventional depressant NaHS is huge. There is greater susceptibility of chalcocite and other secondary copper sulfide minerals to electrochemical reaction in comparison to chalcopyrite. Given the irreversible desorption behavior of collector molecules on chalcocite upon negative potential application, electrochemically regulated flotation can be effectively utilized to diminish the utilization of conventional depressants. In this work, electrochemistry and shell-separated nanoparticle-enhanced Raman spectroscopy (SHINERS) were used to explore the transformation of chalcopyrite surface to chalcocite-like species under the combined action of Cu2+ and negative potential. The results show that the similarity of cyclic voltammetry (CV) between the modified chalcopyrite and chalcocite, increases with the pretreatment potential becoming increasingly negative. Electrochemical impedance spectroscopy (EIS) also reflects their similar adsorption and desorption behavior in response to ammonium dibutyl dithiophosphate (ADD), a typical flotation collector molecule. In addition, the spectroelectrochemical directly reflects the irreversible desorption of ADD molecules from the modified chalcopyrite surface at - 0.7 V. The research results lay a theoretical foundation for the efficient Cu-Mo separative flotation by depressing chalcopyrite under the combination of Cu2+ and negative potential.
Keyword ：
Chalcocite Chalcocite Chalcopyrite Chalcopyrite Electrochemical Electrochemical Irreversible desorption Irreversible desorption SHINERS SHINERS Surface modification Surface modification
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| GB/T 7714 | Zhang, Kecan , Lei, Shan , Miao, Yu et al. Spectroelectrochemistry study on the surface modification of chalcopyrite by Cu2+and its depressive response to flotation collector adsorption by negative potential [J]. | APPLIED SURFACE SCIENCE , 2025 , 682 . |
| MLA | Zhang, Kecan et al. "Spectroelectrochemistry study on the surface modification of chalcopyrite by Cu2+and its depressive response to flotation collector adsorption by negative potential" . | APPLIED SURFACE SCIENCE 682 (2025) . |
| APA | Zhang, Kecan , Lei, Shan , Miao, Yu , Guo, Bao . Spectroelectrochemistry study on the surface modification of chalcopyrite by Cu2+and its depressive response to flotation collector adsorption by negative potential . | APPLIED SURFACE SCIENCE , 2025 , 682 . |
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Germanium is one of the strategic scattering metals, and recovering a minor concentration of scattering metals from zinc concentrate's leaching solution is an essential resource worldwide. Practically, neutralizing precipitation and the subsequent dissolution are implemented to enrich scattering metals from zinc leaching solution, facilitating further extraction of Ge and others. Silicon poses significant challenges to the efficient extraction of Ge due to their similar chemical property and the inert nature of silica. However, the evolution of the Ge occurrence state, especially its relationship with Si, during the precipitation and dissolution process in zinc hydrometallurgy is unclear, and there is a lack of an effective method to separate Si/Ge. This paper started with a detailed characterization and leaching behavior of Ge-enriched residue obtained from the plant, followed by a systematic investigation of Ge behavior in synthetic Si/Ge binary and Fe/Si/Ge ternary systems. Eventually, options for Ge enrichment from zinc leaching solution and Si/Ge separation are recommended, providing a practical framework for mitigating the negative influence of Si on the extraction of Ge in zinc hydrometallurgy. The significant findings are that Ge/Si are both presumably co-adsorbed by Fe(OH)3 colloids upon neutralization to pH 5 of zinc leaching solution, which could be acid redissolved at the unrealistically high liquid-to-solid ratio of 200/1 at the practically meaningful liquid-to-solid ratio of 5/1, Si concentration is high enough to quickly condense and polymerize, resulting the formation of silica precipitate and permanent encapsulating of Ge into silica; interestingly, the Si-O-Ge bonding becomes weakened with pH increasing up to alkaline region and Ge leaching rate exceeding 80% at pH 10, effectively separating Ge from SiO2. © 2025 Elsevier B.V.
Keyword ：
Enrichment Enrichment Scattering metals Scattering metals Si/Ge separation Si/Ge separation Zinc hydrometallurgy Zinc hydrometallurgy
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| GB/T 7714 | Chen, S. , Dong, W. , Zhao, W. et al. The evolution of Ge occurrence state and Si-Ge relationship during precipitation-dissolution enrichment to recover scattering metals from Zn concentrate leaching solution [J]. | Separation and Purification Technology , 2025 , 368 . |
| MLA | Chen, S. et al. "The evolution of Ge occurrence state and Si-Ge relationship during precipitation-dissolution enrichment to recover scattering metals from Zn concentrate leaching solution" . | Separation and Purification Technology 368 (2025) . |
| APA | Chen, S. , Dong, W. , Zhao, W. , Qiang, W. , Chen, X. , Guo, B. et al. The evolution of Ge occurrence state and Si-Ge relationship during precipitation-dissolution enrichment to recover scattering metals from Zn concentrate leaching solution . | Separation and Purification Technology , 2025 , 368 . |
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This paper presents a treatment process for copper smelter dust's chlorinated leaching solution. Addressing the challenge of separating As and valuable metals from this solution, the process utilized SO2 to reduce As(V) to As(III) and NaOH to neutralize Bi(III), resulting in the stepwise formation of As2O3 and BiOCl. The results indicate that, under optimal conditions, the precipitation ratio of As reached 71.23%, and the Bi precipitation ratio reached 98.38%. Following Bi precipitation, two separation strategies were attempted for the recovery of Cu and Zn. The first strategy involves recovery of Cu using a sulfide precipitation method, followed by the recrystallization of ZnSO4. Under optimal conditions, the Cu precipitation ratio can reach 99.81%. The second strategy involves Cu solvent extraction using Lix984N coupled with Zn solvent extraction using P204. Under appropriate conditions, the Cu extraction rate can achieve 98.59%. A comprehensive assessment indicates that using sulfidation - crystallization to separate Cu and Zn is more economical than employing solvent extraction methods. Consequently, the final process is determined as follows: As removal by SO2 reduction > Bi recovery by NaOH neutralization > Cu recovery by sulfidation precipitation > Zn recovery by crystallization.
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| GB/T 7714 | Guo, Zhuzhu , Gao, Chunhui , Wu, Siyuan et al. Removal of As in Copper Smelter Dust's Chlorinated Leaching Solution by SO2 Reduction and the Subsequent Separation of Bi/Cu/Zn [J]. | JOM , 2025 , 77 (5) : 3409-3417 . |
| MLA | Guo, Zhuzhu et al. "Removal of As in Copper Smelter Dust's Chlorinated Leaching Solution by SO2 Reduction and the Subsequent Separation of Bi/Cu/Zn" . | JOM 77 . 5 (2025) : 3409-3417 . |
| APA | Guo, Zhuzhu , Gao, Chunhui , Wu, Siyuan , Guo, Bao , Deng, Rongdong , Jiang, Kaixi . Removal of As in Copper Smelter Dust's Chlorinated Leaching Solution by SO2 Reduction and the Subsequent Separation of Bi/Cu/Zn . | JOM , 2025 , 77 (5) , 3409-3417 . |
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Compared to copper sulfide minerals with good floatability in copper ore beneficiation, copper oxide minerals exhibit poor floatability but increasing reserves as refractory copper resources. Sulfidation of copper oxide minerals by adding Na2S into the pulp is a common strategy to increase their floatability. In this work, sulfidation roasting as a pretreatment method was proposed to increase the floatability of malachite using xanthate as the collector. Roasting was conducted at 500-600 degrees C for 3-120 min using pyrite as the sulfur source and coal to control oxygen partial pressure (PO2), which plays a crucial role in sulfidation reactions. Thermodynamic factors and experimental observations, including roasting product characterization and roasting kinetics analysis, were considered to optimize the roasting parameters with minimized energy and material consumption. It was found that 84.5% flotation recovery can be achieved by roasting malachite at 500 degrees C for 6 min. Microanalysis shows that sulfidation occurs homogeneously across the bulk particle because of porous structure of the raw mineral. The SO2 gas species, as a pyrite oxidation product and sulfur carrier in the roasting system, diffuse into malachite mineral particles and sulfidize copper oxide to chalcocite and digenite.
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| GB/T 7714 | Yu, Chun , Zhu, Liangzhen , Ding, Xuemin et al. Sulfidation Roasting of Malachite and Its Flotation Behavior [J]. | JOM , 2025 , 77 (4) : 2444-2452 . |
| MLA | Yu, Chun et al. "Sulfidation Roasting of Malachite and Its Flotation Behavior" . | JOM 77 . 4 (2025) : 2444-2452 . |
| APA | Yu, Chun , Zhu, Liangzhen , Ding, Xuemin , Guo, Bao . Sulfidation Roasting of Malachite and Its Flotation Behavior . | JOM , 2025 , 77 (4) , 2444-2452 . |
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In zinc hydrometallurgical plant, neutralizing precipitation and the subsequent dissolution are implemented to enrich scattering metals, Gallium (Ga) and Indium (In), and Cu from zinc leaching solution, facilitating further extraction and separation of Ga/In and others. The formation of jarosite presents both challenges and opportunities for Ga/In extraction, as Ga/In can substitute Fe within the jarosite structure. In this work, the evolution of the Ga/In occurrence state, especially its relationship with jarosite was investigated and the role of Fe/K/Pb was emphasized. Results show that jarosite formation is inevitable at pH 1-2, with K-jarosite forming kinetically faster than Pb-jarosite. By supplying sufficient K, precipitation rates reached 95.7 % for Ga and 98.1 % for In at pH 2 with little Cu/Ge loss. Eventually, a more appropriate and efficient flowsheet for recovery of scattering metals and Cu from zinc leaching solution is recommended, providing a practical framework comprehensive utilization in zinc hydrometallurgy.
Keyword ：
Enrichment Enrichment Jarosite Jarosite Scattering metals Scattering metals Zinc hydrometallurgy Zinc hydrometallurgy
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| GB/T 7714 | Dong, Weinan , Qiu, Xuehong , Zhao, Weisong et al. The evolution of Ga/In occurrence state and their dependence on jarosite during the precipitation enrichment for recovery of scattering metals and Cu from Zn leaching solution [J]. | SUSTAINABLE MATERIALS AND TECHNOLOGIES , 2025 , 45 . |
| MLA | Dong, Weinan et al. "The evolution of Ga/In occurrence state and their dependence on jarosite during the precipitation enrichment for recovery of scattering metals and Cu from Zn leaching solution" . | SUSTAINABLE MATERIALS AND TECHNOLOGIES 45 (2025) . |
| APA | Dong, Weinan , Qiu, Xuehong , Zhao, Weisong , Guo, Bao , Jiang, Kaixi . The evolution of Ga/In occurrence state and their dependence on jarosite during the precipitation enrichment for recovery of scattering metals and Cu from Zn leaching solution . | SUSTAINABLE MATERIALS AND TECHNOLOGIES , 2025 , 45 . |
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In this study, the occurrence state and distribution characteristics of gallium (Ga) in zinc refinery residue were investigated by dilute acid pre-washing to enrich Ga in zinc refinery residue, followed by silane coupling agent pretreatment and epoxy resin curing, and then analyzed using scanning electron microscopy, focused ion beam micro-slicing technique and transmission electron microscopy. The acid washing increased the mass ratio of Ga from 0.92% to 2.12%. Energy-dispersive spectroscopy and select area electron diffraction revealed that Ga occurred as tiny ring-like particles of gallobeudantite (a Pb-jarosite) that intimately envelop the previously formed K-jarosite fine-grained inclusions. Density functional theory calculations showed that the interplanar spacings of the new phase formed after Ga substitution for Fe in Pb-jarosite (3.413 Å and 5.505 Å) were in good agreement with the actual measured values, further confirming that Ga substitution for Fe in Pb-jarosite was achieved. The kinetical model explains the formation of multiple phases during precipitation in the treatment of zinc leaching solution. Compared to existing studies, this work reveals the spatial distribution of gallium with higher resolution and jointly determines the gallium-containing phases through experimental analysis and simulation calculations. This microanalytical method enhances the understanding of Ga species formation during zinc refining, aiding in their distribution control and process optimization. Graphical abstract: (Figure presented.) © The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature 2024.
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| GB/T 7714 | Dong, W. , Qiu, X. , Zhao, W. et al. Microanalytical investigations of gallium occurrence and distribution in zinc refinery residue [J]. | Journal of Materials Science , 2024 , 59 (31) : 14606-14620 . |
| MLA | Dong, W. et al. "Microanalytical investigations of gallium occurrence and distribution in zinc refinery residue" . | Journal of Materials Science 59 . 31 (2024) : 14606-14620 . |
| APA | Dong, W. , Qiu, X. , Zhao, W. , Guo, B. , Jiang, K. , Chiou, M.-F. et al. Microanalytical investigations of gallium occurrence and distribution in zinc refinery residue . | Journal of Materials Science , 2024 , 59 (31) , 14606-14620 . |
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针对辉钼矿在浮选矿浆中易团聚并包裹黄铜矿,导致铜钼浮选分离困难的问题,通过光学显微镜和聚焦光束反射测量仪研究了超声波分散、机械搅拌和添加分散剂六偏磷酸钠3种方式对辉钼矿分散行为的影响;采用红外光谱、扫描电子显微镜、Zeta电位并结合浮选溶液化学技术对分散机理进行了研究。结果表明,3种分散方式都可起到分散辉钼矿团聚体的作用,其中以添加六偏磷酸钠的效果最好;加入400 mg/L六偏磷酸钠,不但能够有效降低辉钼矿团聚体的尺寸、减少其数量,还能降低辉钼矿团聚体内黄铜矿含量,使人工混合矿浮选钼精矿的铜含量由3.86%降低至2.73%;六偏磷酸钠在辉钼矿表面吸附并产生空间位阻排斥力,电离出的阴离子增大了颗粒间的静电斥力,致使辉钼矿表现出较好的分散行为。
Keyword ：
六偏磷酸钠 六偏磷酸钠 分散方式 分散方式 团聚体 团聚体 浮选 浮选 铜钼分离 铜钼分离
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| GB/T 7714 | 肖世洁 , 邓荣东 , 代旺 et al. 铜钼分离过程中辉钼矿的多方式分散效果研究 [J]. | 金属矿山 , 2024 , PageCount-页数: 8 (05) : 250-257 . |
| MLA | 肖世洁 et al. "铜钼分离过程中辉钼矿的多方式分散效果研究" . | 金属矿山 PageCount-页数: 8 . 05 (2024) : 250-257 . |
| APA | 肖世洁 , 邓荣东 , 代旺 , 赵睿祺 , 吴思远 , 郭宝 . 铜钼分离过程中辉钼矿的多方式分散效果研究 . | 金属矿山 , 2024 , PageCount-页数: 8 (05) , 250-257 . |
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针对锌粉置换渣提取Ga、Ge过程浸出效果不佳的问题，本研究首先开展了常压硫酸浸出试验，考察硫酸浓度、反应温度、液固比、反应时间对Ga、Ge浸出率的影响，并对浸出过程进行了动力学分析；而后分别尝试了还原浸出(先后以Na_2SO_3、SO_2为还原剂)、硫酸化焙烧-水浸两种工艺，对锌粉置换渣开展了Ga、Ge强化浸出试验。结果表明：常压硫酸浸出工艺在硫酸浓度150 g/L、反应温度90℃、液固体积质量比5 mL/g、反应时间4 h、搅拌转速400 r/min的适宜条件下，Ga、Ge浸出率分别为68.4%、61.7%;酸浸渣主要物相为PbSO_4和ZnAl_2O_4,增加酸度可促使残留的黄钾铁矾、铅铝矾进一步溶出；Ga和Ge常压硫酸浸出过程主要受内扩散控制，反应表观活化能分别为18.06 kJ/mol和16.02kJ/mol。对一段常压硫酸浸出渣进行二段还原强化浸出，以Na_2SO_3为还原剂，在50 g/L H_2SO_4+3 g/L Na_2SO_3条件下，Ga、Ge浸出率达89.4%和70.1%;以SO_2为还原剂，在SO_2分压0.3 MPa、硫酸浓度50 g/L、反应温度110℃、、反应时间3 h条件下，Ga、Ge浸出率达88.9%和86.7%。硫酸化焙烧-水浸工艺对锌粉置换渣中Ga的浸出效果改善明显，但对Ge浸出不利，酸渣体积质量比宜为1/2.5 mL/g,并在焙烧温度300℃、焙烧时间3 h、水浸温度80℃、液固体积质量比5 mL/g、浸出时间2 h的条件下，Ga浸出率可提高到89.1%。
Keyword ：
二段还原浸出 二段还原浸出 强化浸出 强化浸出 硫酸化焙烧 硫酸化焙烧 硫酸浸出 硫酸浸出 锌粉置换渣 锌粉置换渣 锗 锗 镓 镓
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| GB/T 7714 | 赵唯淞 , 邱雪红 , 董伟楠 et al. 锌粉置换渣中镓、锗的强化浸出试验研究 [J]. | 稀有金属与硬质合金 , 2024 , 52 (04) : 17-26 . |
| MLA | 赵唯淞 et al. "锌粉置换渣中镓、锗的强化浸出试验研究" . | 稀有金属与硬质合金 52 . 04 (2024) : 17-26 . |
| APA | 赵唯淞 , 邱雪红 , 董伟楠 , 郑朝振 , 郭宝 , 蒋开喜 . 锌粉置换渣中镓、锗的强化浸出试验研究 . | 稀有金属与硬质合金 , 2024 , 52 (04) , 17-26 . |
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