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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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Abstract ：
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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Lead is an indispensable non-ferrous metal for industrial development. As primary galena(PbS) resources are being exhausted, the utilization of lead oxide ore resources have become increasingly important. Compared with the conventional lead oxide surface sulfidation flotation method by NaHS dosing in the pulp, the roasting sulfidation pre-treatment method has the characteristics of high efficiency and suitable for various types of ores. In this paper, we firstly demonstrate that pyrite(FeS2) can provide a sulfurous atmosphere to convert cerussite(PbCO3) into galena(PbS) through thermodynamic calculations. Then, the reaction conditions were optimized through the roasting sulfidation conditions such as the contact mode, time and temperature of the reaction, and the sulfidation mechanism of cerussite at high temperature roasting was studied by using XRF, XRD, SEM and XPS. It was clarified that the sulfidation of cerussite was progressed by reacting with sulfur-based atmosphere from the surface layer to form PbS, and then gradually penetrating into the inner layer until PbS was completely generated, and the recovery rate was increased from 14.95 % to >80 % after optimization.
Keyword ：
Cerussite Cerussite Energy saving and carbon reduction Energy saving and carbon reduction Flotation Flotation Sulfidation mechanism Sulfidation mechanism Sulfidation roasting Sulfidation roasting
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| GB/T 7714 | Miao, Yu , Yang, Wanting , Ding, Xuemin et al. The mechanism of sulfidation roasting pretreatment of cerussite for enhanced flotation behavior [J]. | CHEMICAL ENGINEERING JOURNAL ADVANCES , 2025 , 21 . |
| MLA | Miao, Yu et al. "The mechanism of sulfidation roasting pretreatment of cerussite for enhanced flotation behavior" . | CHEMICAL ENGINEERING JOURNAL ADVANCES 21 (2025) . |
| APA | Miao, Yu , Yang, Wanting , Ding, Xuemin , Min, Jiarui , Guo, Bao , Chen, Xiangxiang et al. The mechanism of sulfidation roasting pretreatment of cerussite for enhanced flotation behavior . | CHEMICAL ENGINEERING JOURNAL ADVANCES , 2025 , 21 . |
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When the leaching method is applied to fine-grained non-ferrous metal ores, challenges such as slow settling rates and inefficient solid–liquid separation often arise. The precipitation of ultrafine silica particles in the acid leaching slurry and their subsequent separation from the leachate play a critical role in determining the overall efficiency of the hydrometallurgical process. To address these issues, this study employs carrier flocculation technology to treat fine quartz particles under acidic conditions. Experimental results indicate that under optimal conditions—specifically, a carrier dosage of 70%, particle size of 160–200 mesh, and flocculant dosage of 150 g/t polyethylene oxide (PEO)—the flocculation and sedimentation of fine quartz particles are significantly enhanced, primarily due to an increased settling rate. The introduction of electrolyte ions improved the clarity of the supernatant, with divalent ions exhibiting the most pronounced effect. Zeta potential measurements revealed that the absolute values under optimal conditions were closest to the isoelectric point, indicating reduced electrostatic repulsion. Focused beam reflectance measurement (FBRM) analysis further demonstrated that the carrier flocculation mechanism improved both the settling rate and supernatant clarity by altering the fine particle composition of the slurry. Calculations based on classical DLVO theory showed that PEO adsorption reduced the potential energy barrier between quartz particles, facilitating their aggregation through interparticle collisions and thereby promoting floc growth. © 2025 Taylor & Francis Group, LLC.
Keyword ：
Acidic system Acidic system carrier flocculation carrier flocculation fine-grained quartz fine-grained quartz mechanism analysis mechanism analysis
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| GB/T 7714 | Li, S. , Deng, R. , Yu, X. et al. Study on the sedimentation mechanism of fine-grained quartz under carrier flocculation acidic conditions [J]. | Particulate Science and Technology , 2025 . |
| MLA | Li, S. et al. "Study on the sedimentation mechanism of fine-grained quartz under carrier flocculation acidic conditions" . | Particulate Science and Technology (2025) . |
| APA | Li, S. , Deng, R. , Yu, X. , Guo, B. . Study on the sedimentation mechanism of fine-grained quartz under carrier flocculation acidic conditions . | Particulate Science and Technology , 2025 . |
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In oxyfuel combustion, CO2-H2O gas is highly corrosive to the furnace tubes materials in power plants. Sulphur is a general impurity in oxyfuel combustion, and its presence in ash deposit has altered the high temperature corrosion of Fe-Cr alloys. This study concentrates on the fabrication of a FeCoCrNi high-entropy alloy (HEA) coating on a T91 steel using Selective Laser Melting (SLM). Microstructural analysis reveals an excellent metallurgical bond between the coating and the matrix. The coating exhibit slightly higher microhardness than the matrix, and the fine-grain strengthening can enhance the microhardness of the heat-affected zone beneath coating. The coating's excellent corrosion resistance is verified through electrochemical experiments, and the impacts of sulphur on the high-temperature corrosion behaviour of Fe-9Cr alloy and the HEA-coated T91 are further studied using specimens deposited in FeS2-bearing ash. The Fe-9Cr alloy experiences breakaway oxidation in sulphur-free ash, but the presence of FeS2 in the ash delays the growth of the internal oxidation zone and reduced the carburizing effect beneath the iron-rich oxide scale. The enhanced high-temperature oxidation behaviour of the HEA-coated T91 is assigned to the formation of a continuous protective Cr2O3 scale, which can be further enhanced by the beneficial effects of sulphur in the ash. Thus, this work provides a feasible HEA coating strategy to enhance the high-temperature property of steel substrate under sulphur-bearing ash condition.
Keyword ：
Caburization Caburization High-entropy alloys coating High-entropy alloys coating High-temperature corrosion High-temperature corrosion Selective laser melting Selective laser melting Sulphur effect Sulphur effect
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| GB/T 7714 | Yu, Chun , Zhu, Liangzhen , Guo, Bao et al. The effect of sulphur-bearing ash on the high-temperature corrosion in CO2-H2O gas for Fe-9Cr alloy with FeCoCrNi high-entropy alloys coating fabricated via selective laser melting [J]. | JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T , 2025 , 36 : 8421-8430 . |
| MLA | Yu, Chun et al. "The effect of sulphur-bearing ash on the high-temperature corrosion in CO2-H2O gas for Fe-9Cr alloy with FeCoCrNi high-entropy alloys coating fabricated via selective laser melting" . | JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T 36 (2025) : 8421-8430 . |
| APA | Yu, Chun , Zhu, Liangzhen , Guo, Bao , Lu, Yanjin , Zhao, Yi . The effect of sulphur-bearing ash on the high-temperature corrosion in CO2-H2O gas for Fe-9Cr alloy with FeCoCrNi high-entropy alloys coating fabricated via selective laser melting . | JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T , 2025 , 36 , 8421-8430 . |
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This study aims to achieve online detection of the surface chemistry properties of mineral particles during the flotation process using surface-enhanced Raman spectroscopy（SERS）. A high-quality SERS substrate is prepared on the surface of indium-tin oxide （ITO）conductive glass through electrodeposition of a gold nanoparticles film. Subsequently， an inert silicon dioxide mono-molecule isolation layer is formed on the gold surface through selfassembly， enabling the in-situ detection of adsorbed flotation collector molecules on the surface of mineral particles. Addressing the variable ore grade characteristics during the production process， the competitive adaptive reweighted sampling（CARS） and automatic multiscale-based peak detection（AMPD）algorithms are employed to extract feature signals from the SERS data of samples with varying chalcocite content. This study employs the backpropagation neural network （BP） and partial least squares （PLS） algorithms to construct models to predict the chalcocite content based on the saturation adsorption of the reagent. After comparison， the AMPD algorithm is found to more accurately reflect the characteristic peaks of adsorbed molecules， and the accuracy of the BP neural network algorithm surpasses that of the PLS algorithm. The AMPD-BP neural network model has a root mean square error of prediction （RMSEP） of 0.02664， with a correlation coefficient （R） of 0.9755， indicating its excellent predictive performance. SERS combined with machine learning can be used for online detection of surface properties of mineral particles during flotation， providing methodological support for the detection of reagent adsorption amount and flotation intelligent optimization system. © 2025, Youke Publishing Co.,Ltd. All rights reserved.
Keyword ：
Atomic emission spectroscopy Atomic emission spectroscopy Flotation Flotation Gold nanoparticles Gold nanoparticles Indium compounds Indium compounds ITO glass ITO glass Linear programming Linear programming Multilayer neural networks Multilayer neural networks Ore sampling Ore sampling Organoclay Organoclay Reagents Reagents SiO2 nanoparticles SiO2 nanoparticles
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| GB/T 7714 | Guo, Jinsheng , Dong, Weinan , Zhang, Kecan et al. Investigation of online detection for adsorption behavior of flotation reagents on mineral particle surfaces based on surface-enhanced Raman spectroscopy and prediction model [J]. | Chinese Journal of Analysis Laboratory , 2025 , 44 (3) : 432-439 . |
| MLA | Guo, Jinsheng et al. "Investigation of online detection for adsorption behavior of flotation reagents on mineral particle surfaces based on surface-enhanced Raman spectroscopy and prediction model" . | Chinese Journal of Analysis Laboratory 44 . 3 (2025) : 432-439 . |
| APA | Guo, Jinsheng , Dong, Weinan , Zhang, Kecan , Guo, Bao . Investigation of online detection for adsorption behavior of flotation reagents on mineral particle surfaces based on surface-enhanced Raman spectroscopy and prediction model . | Chinese Journal of Analysis Laboratory , 2025 , 44 (3) , 432-439 . |
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It is a waste of gallium resource to discard the high aluminum-containing gallium electrolyte. The Ga/Al separation is difficult by only using lime precipitation because of high gallium loss rate. The present study employs an adsorption resin LSC-600P to recover gallium in the simulated gallium electrolyte and then uses lime to remove aluminum, leaving only alkali solution recycled. The results showed that the aluminum removal rate in the gallium electrolyte was 93.12% under the conditions of reaction temperature of 85 degrees C, addition of lime 2 times to the theoretical molar ratio of calcium to aluminum, reaction time of 3 h and stirring speed of 600 r/min. In the experiments of gallium adsorption, after six adsorption-desorption cycles, the adsorption rate of gallium by LSC-600P resin still reached 98.6%, and the adsorption rate of aluminum was lower than 4.5%. In the desorption process, the desorption rate of gallium was more than 98%, and the aluminum content in the stripping solution after desorption was almost negligible. The resin exhibits high adsorption affinity for gallium while demonstrating minimal adsorption for aluminum.
Keyword ：
Adsorption Adsorption Lime precipitation Lime precipitation LSC-600P LSC-600P Simulated gallium electrolyte Simulated gallium electrolyte
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| GB/T 7714 | Pan, Qi , Zhu, Zhen , Lin, Xiaocheng et al. Adsorption-Precipitation Method to Recover Gallium, Aluminum and Alkali from the Gallium Electrolyte in Zinc Refinery Plant [J]. | TRANSACTIONS OF THE INDIAN INSTITUTE OF METALS , 2025 , 78 (4) . |
| MLA | Pan, Qi et al. "Adsorption-Precipitation Method to Recover Gallium, Aluminum and Alkali from the Gallium Electrolyte in Zinc Refinery Plant" . | TRANSACTIONS OF THE INDIAN INSTITUTE OF METALS 78 . 4 (2025) . |
| APA | Pan, Qi , Zhu, Zhen , Lin, Xiaocheng , Guo, Bao , Jiang, Kaixi . Adsorption-Precipitation Method to Recover Gallium, Aluminum and Alkali from the Gallium Electrolyte in Zinc Refinery Plant . | TRANSACTIONS OF THE INDIAN INSTITUTE OF METALS , 2025 , 78 (4) . |
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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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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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