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New insight into effect of cation bridging on the differential bonding mechanism of sodium carboxymethyl starch in molybdenite-talc separation Miner. Eng. (IF 5.0) Pub Date : 2025-06-22 Zechao Huangfu, Wei Sun, Chen Chen, Runqing Liu
The selective depression of talcose molybdenum ores has always been a pressing problem in the physical chemistry of flotation. Herein, aluminum ion was introduced to investigated its effect on the selective depression of sodium carboxymethyl starch (CMS) on molybdenite-talc separation. The micro-flotation experiments shows that the combination of CMS and aluminum ion exerts a synergistic depression
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Study on the self-initiated catastrophe mechanism of strain rockburst: A laboratory experiment Int. J. Rock Mech. Min. Sci. (IF 7.5) Pub Date : 2025-06-21 Yuan Qian, Cheng Zhao, Zhihong Dong, Jinquan Xing, Jialun Niu, Boyi Zhang, Sheng Luo
Throughout the full evolution process of rockburst, the instantaneous self-initiated static-dynamic transition behavior represents a pivotal inflection point that propels rocks from static deformation to dynamic instability. Nevertheless, the transient dynamic process of this point and its role in triggering rockburst remain incompletely understood. Addressing the scientific issue, this study proposes
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Effect of particle properties on erosion in slurry transport pipeline: Velocity, size, mass flow rate and shape Miner. Eng. (IF 5.0) Pub Date : 2025-06-21 Dong Wang, Feng Ju, Juan Xu, Meng Xiao, Pai Ning, Tengfei Wang
In the process of backfill mining, transporting slurry with large particles through pipelines at high flow rates poses risks of erosion-induced failures. Therefore, it is crucial to study the influence of particle properties on pipeline erosion rates. This study investigates the effects of coal-gangue particle characteristics, including velocity, diameter, mass flow rate, and shape factor, on erosion
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Investigating hydrodynamics of a laboratory-scale ImhoflotTM V-cell in recovering ultrafine magnesite from a dolomite-rich tailing Miner. Eng. (IF 5.0) Pub Date : 2025-06-21 Olcay Ayoglu, Duong Huu Hoang, Maria Sinche-Gonzalez, Ahmad Hassanzadeh, Martin Rudolph
Recovering ultrafine magnesite from dolomite-rich desliming tailings faces significant challenges due to the fine and ultrafine particle sizes, the similar physicochemical surface properties of magnesite and dolomite, and a lack of advanced technological solutions in froth flotation. This study introduces a novel approach by investigating the hydrodynamic properties of a laboratory-scale pneumatic
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Structure optimization of pneumatic micro-bubble flotation machine based on numerical simulation Miner. Eng. (IF 5.0) Pub Date : 2025-06-21 Jinhe Pan, Hao Niu, Changchun Zhou, Changbin Peng, Longfei Cong, Shulan Shi, Zhiping Wen
Pneumatic micro-bubble flotation machines have emerged as useful flotation devices in recent years, offering advantages such as high processing capacity, simple structure, and energy and reagent savings. Their pneumatic particle-bubble collision performance and internal flow field characteristics need much development to support current inferior ores. Additionally, systematic theoretical guidance for
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Study on the remediation of arsenic pollution in tin tailings by Geopolymer-cementitious hybrids Miner. Eng. (IF 5.0) Pub Date : 2025-06-21 Chengping Li, Yang Liu, Shuntao Xu, Jinsong Wang, Chongjun Bao, Ying Liu, Zhengfu Zhang, Yuejing Bin, Dianwen Liu
The release of arsenic (As) from tin tailings poses significant environmental pollution challenges. Developing economic, green, and effective solutions for controlling As pollution from these tailings remains difficult. This study addresses this issue by developing a green multi-solid waste geopolymer, composed of tin tailings, red mud, desulphurized gypsum, and cement (TRGC). The optimized TRGC geopolymer
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Hydrophobic agglomeration of different types of collectors in the separation of fine tenorite from quartz Miner. Eng. (IF 5.0) Pub Date : 2025-06-21 Qiurong Long, Qiang He, Weiyong Cui, Yangge Zhu
Sodium dodecyl sulfate (SDS), sodium oleate (NaOL), sodium octyl hydroxamate (OHA), heptyl triazine thione (HpNT) and hexyl tetrathione (HTT) − characterized by different hydrophobic groups and polar functional groups − were investigated for their effects on hydrophobic aggregation during the separation of fine tenorite from quartz. The findings showed that the hydrophobicity of the tenorite surface
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Research on recognition method of liner wear stage based on operation and vibration information of semi-autogenous mil Miner. Eng. (IF 5.0) Pub Date : 2025-06-21 TianQing Li, Dakuo He, Shuiqing Yu
The wear stage of the liner is of great significance to the production and maintenance of the mill. However, it is difficult to monitor the wear stage of the liner in real time. Therefore, this study developed a method to recognize the wear stage of semi-autogenous(SAG) mill liner on line. The pulp density is an important characteristic variable for reflecting liner wear stage. In view of the difficulty
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Microbially-induced calcite precipitation in heterogeneous co-disposed coal waste systems Miner. Eng. (IF 5.0) Pub Date : 2025-06-20 I. Hajee, S.T.L. Harrison, A. Kotsiopoulos
Acid rock drainage (ARD) is the acidic leachate obtained from weathered mine or mineral waste, caused by the oxidation of sulfide minerals by oxygen and water. Limiting the access of oxidants to the sulfide-containing mineral is paramount to prevent the oxidation reactions that promote acid-runoff. Co-disposal techniques include the co-mingling of complementary mine wastes with disparate ARD characteristics
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A novel viscoplastic model for salt rock deformation under internal cyclic gas pressure loading Int. J. Min. Sci. Technol. (IF 13.7) Pub Date : 2025-06-19 Jinyang Fan, Luxuan Tang, Marion Fourmeau, Zongze Li, Wenhao Liu, Yang Zou, Deyi Jiang
Salt caverns are widely used for energy storage. During gas storage, the internal gas pressure fluctuates cyclically in response to energy demand, making it essential to assess how these pressure variations affect rock deformation. In this study, experiments were conducted under different cyclic gas pressure conditions to investigate this effect. The findings indicate that (1) the deformation process
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Investigation into failure mechanisms of lunar regolith simulant under thin-walled drilling tool with critical parameters Int. J. Min. Sci. Technol. (IF 13.7) Pub Date : 2025-06-19 Zheng Gao, Mingzhong Gao, Haichun Hao, Yan Wu, Jinfeng Cao, Qichen Sun, Junshan Gong, Jiahua Li, Lang Zhou, Xuemin Zhou
Acquiring pristine deep lunar regolith cores with appropriate drilling tools is crucial for deciphering the lunar geological history. Conventional thick-walled drill bits are inherently limited in obtaining deep lunar regolith samples, whereas thin-walled coring bits offer a promising solution for lunar deep drilling. To support future lunar deep exploration missions, this study systematically investigates
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Pore-scale damage evolution in sandstone induced by fluid infiltration under various stress conditions Int. J. Rock Mech. Min. Sci. (IF 7.5) Pub Date : 2025-06-19 Yongfa Zhang, Anfa Long, Arno Zang, Yu Zhao
While stress-dependent fluid infiltration plays a critical role in the initiation and propagation of hydraulic fractures, limited attention has been paid to the dynamics of fluid infiltration and the pore-scale damage mechanisms resulting from fluid infiltration during hydraulic fracturing. To address these research gaps, this study conducts hydraulic fracturing experiments on tight sandstone under
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Influence of composition, compaction and wetting drying cycles on the leachates from two hydraulically bound coal mine wastes Miner. Eng. (IF 5.0) Pub Date : 2025-06-19 Thanh Liem Vo, Mohammad Rezania, William Nash, Violeta Ramos, Raffaele Vinai, Emmanuel Owoichoechi Momoh, Mohammad Hajsadeghi, Mark Williams, Paul Wilson, Rich Crane
Coal mine waste (CMW) poses many environmental challenges globally. They are mostly stored in coal tips or utilised as raw materials in low value landscaping applications within the mine site or in local proximity. To widen and valorise its use, there is a growing interest in its inclusion in higher value hydraulically bound construction materials, however, a key limitation currently holding back this
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Study on the adsorption mechanism of ricinoleate and oleate on kaolinite and quartz surfaces Miner. Eng. (IF 5.0) Pub Date : 2025-06-19 Chuilei Kong, Lingyun Liu, Xianglin Yang, Fangqin Lu
The introduction of a hydroxyl group in the ricinoleat (ROA−) molecule enhances its adsorption selectivity on kaolinite surfaces compared to conventional oleate (OA−). In this study, a combined approach of density functional theory (DFT) simulations and experimental validation was employed to investigate the adsorption behaviors of ROA− and OA− on kaolinite and quartz surfaces. Mulliken population
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Enhancing the hydration properties of copper tailings cement through improving the interfacial transition zone by calcium-based activators Miner. Eng. (IF 5.0) Pub Date : 2025-06-19 Jingzhi Peng, Zhihong Wu, Yuexin Pan, Jiawei Wang, Jin Wang, Shufang Ren, Hongjin Xu
Copper tailings are solid waste with large discharge volumes and significant environmental pollution. After activation, their pozzolanic reactivity can be enhanced, enabling them to serve as supplementary cementitious materials (SCMs) to replace cement. The use of alkali metal salt-activated tailings as a cement substitute can result in a reduction in specimen strength over time. The application of
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Development of a rare earth modified residue of leaching aluminium from gangue for fluoride ion adsorption from mine water Miner. Eng. (IF 5.0) Pub Date : 2025-06-19 Lianjing Ma, Yang Zhang, Panyang He, Baofeng Zhao, Xiaomin Zhang, Haibo Xiao, Mengna Diwu, Di Liu, Qinghua Gu, Caiwu Lu
The increasing anthropogenic and industrial activities have led to widespread contamination of water resources. Among the various pollutants, excess fluoride in water poses a global environmental and public health challenge due to its toxicity and persistence. To address this challenge, Ce and La loaded the residue of leaching aluminium from gangue were synthesized as adsorbents (Ce-La@LR) for the
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Influence of mine tailings mineralogy and curing conditions in the cementation of pastes for mine galleries backfilling Miner. Eng. (IF 5.0) Pub Date : 2025-06-19 Antonio J. Diosdado-Aragón, Martin J. Valenzuela-Díaz, Jose Miguel Dávila, Mercedes Becerra-Herrera, Manuel A. Caraballo
Mine Tailings (MTs) are typically used in combination with ordinary Portland cement (OPC) and water to generate a paste to be used for mine galleries backfilling (MGBF). This technology has been optimized for several decades and it is well known that the final uniaxial compressive strengths (UCS) achieved by the paste mainly depend on the OPC concentration used in the paste formulation. However, there
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An interpretable and generalised machine learning model for predicting flotation performance Miner. Eng. (IF 5.0) Pub Date : 2025-06-19 Clement Lartey, Richmond K. Asamoah, Christopher Greet, Massimiliano Zanin, Jixue Liu
Recent advances in sensor technology and machine learning (ML) have created new opportunities to predict and improve flotation performance in mineral processing. However, existing flotation performance prediction models lack interpretability and are mostly poorly generalised, making drawing insights from model outcomes difficult. This study addresses these gaps by developing a balanced flotation model
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Advances in application of theoretical computations in copper oxide mineral flotation Miner. Eng. (IF 5.0) Pub Date : 2025-06-19 Wentao Xu, Jing Wen, Chenyang Zhang, Leyi Chen, Yujie Zeng, Tao Zhang, Qamroosh Altaf, Yangge Zhu
Copper is an important strategic mineral resource for national defense security and economic development. With the gradual decrease in easy-to-mining and processing copper sulfide mineral resources, how to efficiently utilize low-grade and difficult-to-process copper oxide mineral resources has attracted more and more attention. Previous work has made some breakthroughs, and this article will provide
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Synergistic mechanisms of steel slag, granulated blast furnace slag, and desulfurization gypsum in high-content steel slag-based cementitious backfill materials Int. J. Min. Sci. Technol. (IF 13.7) Pub Date : 2025-06-18 Jianshuai Hao, Zihan Zhou, Zhonghui Chen, Yanjun Shen, Kuizhen Fang, Fei Tang, Fengyang Xin, Lingfei Zhang
In the steel slag-based mine backfill cementitious material systems, the hydration reaction mechanisms and synergistic effects of steel slag (SS), granulated blast furnace slag (GBFS), and desulfurization gypsum (DG) are crucial for performance optimization and regulation. However, existing studies have yet to fully reveal the underlying synergistic mechanisms, which limits the application and promotion
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Deterministic cascade evolution in coal and gas outbursts: from early acoustic signatures to system-wide failure Int. J. Min. Sci. Technol. (IF 13.7) Pub Date : 2025-06-18 Yang Lei, Zhijie Wen, Liang Wang, Ting Ren, Yujun Zuo
Coal and gas outbursts constitute a critical hazard in underground mining operations, characterized by rapid transitions from localized instability to catastrophic failure. Understanding the relationship between initial characteristics and final outburst scale remains a fundamental challenge in geomechanics. This study conceptualizes outbursts as deterministic cascade systems through integrated physical
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Froth flotation study of Pb-Zn ore under different temperature constraints Miner. Eng. (IF 5.0) Pub Date : 2025-06-18 D. Pashkevich, L. Pereira, O. Kökkılıç, K.E. Waters
Variations in temperature are known to affect the metallurgical responses of sulfide flotation. Different studies have identified that sphalerite recovery and grade are impacted by temperature with flotation reagent efficiency being responsible for fluctuations in primary concentration (selective attachment of valuable mineral particles to air bubbles) while the effects on secondary concentration (froth
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Measurement of gas dispersion parameters in a reflux flotation cell Miner. Eng. (IF 5.0) Pub Date : 2025-06-18 Abdullaziz Glabe Zakari, Raju Chowdhury, Peter Ireland, Geoffrey Evans, Subhasish Mitra
Performance of mineral flotation process in terms of grade and recovery is critically dependent on achieving the optimal gas dispersion in a flotation cell which involves three parameters − superficial gas velocity (jG), gas holdup (α¯G), and bubble size (dsea). In mechanical flotation cells, these parameters have been extensively studied, however current understanding of these parameters in the Reflux
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Fluorite ore recognition using spectral clustering and smartphone digital images calibrated with a ColorChecker: A case study at the Lújar underground mine, Spain Miner. Eng. (IF 5.0) Pub Date : 2025-06-18 Enming Li, Pablo Segarra, José A. Sanchidrián, Santiago Gómez, Luis Iglesias, Alberto Fernández, Rafael Navarro
Identifying and predicting mineral grade is crucial in mining engineering as it directly influences the efficiency and profitability of extraction processes. By accurately determining ore quality, mining operations can optimize resource allocation, reduce waste, and make environmentally responsible decisions. Over the past few years, the image-based methods have been proved to be effective since they
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The influence of grinding media and water chemistry on the closed-water flotation of single-mineral sulfide ores Miner. Eng. (IF 5.0) Pub Date : 2025-06-18 Sancho N. Nyoni, Cyril T. O’Connor, Zhiyong Gao, Shihong Xu, Kirsten C. Corin
The milling stage prior to flotation plays a significant role in determining the chemical characteristics of the pulp phase in mineral processing, in which the grinding media and nature of the process water play a key role. This study analysed the effects of using low or high-ionic-strength water and either forged steel or inert ceramic media. Pure sulfide minerals, viz., pyrite (FeS2) and galena (PbS)
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Time-evolution of ScCO2-weakened coal integrity: Chemo-hydromechanical coupling and geological sequestration implications Int. J. Min. Sci. Technol. (IF 13.7) Pub Date : 2025-06-17 Peng Liu, Jingtao Yang, Baisheng Nie, Ang Liu, Wei Zhao, Hao Xu, Hengyi He
Geological sequestration of CO2 is critical for deep decarbonization, but the geomechanical stability of coal reservoirs remains a major challenge. This study integrates nanoindentation, XRD/SEM-EDS chemo physical characterization and 4D CT visualization to investigate the time-evolving mechanical degradation of bituminous coals with ScCO2 injection. The main results show that 4 d of ScCO2 treatment
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Separation and recovery of vanadium from leaching solution of calcium roasting vanadium slag by extraction with P204 extractant Miner. Eng. (IF 5.0) Pub Date : 2025-06-17 Da-long Wang, Lin Zhang, Jing-wei Li, Chen Chen, Yin-he Lin, Zhi Yang, Da-ya Wang, Huan-jian Hou, Jian Chen, Tang-jie Zhou, Wen-ming Tang
In this study, an efficient method for recovery of vanadium (V) from leaching solution of calcium roasting vanadium slag by extraction with di(2-ethylhexyl) phosphate (P204) was proposed. The impact of initial pH value, P204 concentration, contact time, phase ratio (O/A) and temperature on vanadium recovery were analyzed. The effects of stripping agent, O/A, contact time and temperature on the V stripping
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A systematic approach for the characterisation of potential elemental risks associated with sulphide-bearing mine waste: A gold waste rock case study Miner. Eng. (IF 5.0) Pub Date : 2025-06-17 Alexander K.B. Opitz, Susan T.L. Harrison, Jennifer L. Broadhurst, Megan Becker
Acid rock drainage is a common environmental problem associated with mining sulphidic ores and coal. The upfront assessment of the environmental burden associated with the waste is required to develop reliable long-term management strategies. Of importance is the generation and transport of acidic drainage from waste rock deposits. Current approaches to characterise and predict acid rock drainage focus
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Innovative mixed acid leaching of talc for highly efficient magnesium extraction and valorization of silicon resources Miner. Eng. (IF 5.0) Pub Date : 2025-06-17 Yu Huang, Zhenghao Wang, Yeqiu Zhao, Yangjin Wei, Taixu Hao, Jiandong Chen, Junyun Cheng, Meiqing Shi, Xu Yan, Liyuan Chai, Qingwei Wang, Liyuan Zhang
Talc, a complex silicate mineral, holds significant potential as a source of magnesium (Mg) and silicon (Si), but faces challenges in efficient extraction due to its intricate structure. Traditional methods often struggle to achieve high leaching efficiencies, particularly for Mg. To address this issue, this study investigates a novel approach using a mixed acid system comprising HF and HCl as leaching
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Sustainable production of rare earth elements by recycling NdFeB magnets through sulfation chemistry assisted water leaching process Miner. Eng. (IF 5.0) Pub Date : 2025-06-16 Junjie Shi, Dong Chen, Qixuan Jiang, Min Chen, Yuchao Qiu, Changle Hou, Jingjing Dong, Jianzhong Li
This study presents a comprehensive kinetic and experimental analysis of selective sulfation roasting of spent NdFeB magnets using Fe2(SO4)3, followed by water leaching, to optimize the recovery of rare earth elements. The activation energy for the sulfation reaction was determined to be 205.9 kJ/mol, with the dominant mechanism function aligning with 1-(1-α)2/3, indicating that the process was typically
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Behaviour of the critical elements As, Bi, In, Sb, and Te during processing of a skarn ore: A case study of the Ruwai Zn-Pb-Ag Deposit, Central Kalimantan, Indonesia Miner. Eng. (IF 5.0) Pub Date : 2025-06-16 Shelly M. Faizy, Doreen Ebert, Alkis Kontonikas-Charos, Mathias Burisch, Arifudin Idrus, Ernowo Ernowo, Anggara Widyastanto, Max Frenzel
Advancements in modern technology are causing a rapid increase in the consumption of critical elements. Many of these elements are obtained as by-products from the extraction and processing of other raw materials. Yet, limited information is available on their concentrations in primary ores, behaviour during ore processing, and availability to the global economy. This study analysed ores and mineral
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Insights into gangue reagent interactions using process mineralogy Miner. Eng. (IF 5.0) Pub Date : 2025-06-16 N.J. Shackleton, V. Malysiak, L. Moshabeshe, F. Mphahlele
Depressants are used to enhance the valuable minerals recovery and flotation selectivity by depressing the gangue minerals and limiting their deportment to the concentrate. This study examines the performance of various CMC depressants with the aim of gaining an understanding of the depressant and gangue minerals characteristics that play a role during froth flotation of PGM ore types.
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Kinetics of metals dissolution from EV batteries for the development of sustainable technology Miner. Eng. (IF 5.0) Pub Date : 2025-06-16 Rukshana Parween, Karina Rani, Rekha Panda, Kyoungkeun Yoo, Richard Diaz Alorro, Balram Ambade, Manis Kumar Jha
The increasing volume of scrap EV batteries generated globally poses significant challenges for disposal and recycling due to stringent environmental concerns. Recycling these batteries not only mitigates environmental pollution but also enables the recovery of valuable metals. This paper investigates the leaching kinetics of metals in the black mass of EV batteries, a crucial step in battery recycling
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A consistency evaluation quantification method for ball mill digital twin model based on multidimensional analysis Miner. Eng. (IF 5.0) Pub Date : 2025-06-16 Wei Guan, Shuai Wang, Guoqiang Wang, Zeren Chen, Zhengbin Liu, Jianbo Guo, Shuwei Wu, Yiwei Mao
Due to its capability of real-time mapping of physical entities, digital twins have demonstrated significant potential across various domains. However, how to evaluate whether the established digital twin model can accurately map the physical entity in the real world is a topic that has been overlooked. Considering the high degree of coupling, complex structure, and variable operating conditions of
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The depression mechanism of tara gum on the flotation separation of apatite from calcite: Experiments and molecular dynamics simulation Miner. Eng. (IF 4.9) Pub Date : 2025-06-14 Na Xue, Yunpeng Zhang, Changfeng Chen, Yangge Zhu, Xuejing Liu, Ling Wang, Hao Wang, Yimiao Nie, Shuxian Liu, Long Wang
To address the challenges in selectively differentiating apatite from calcite via flotation, Tara gum (TG) functioned in the role of a calcite-selective inhibitor during this research. The micro-flotation tests indicated that apatite and calcite displayed comparable buoyancy characteristics when sodium oleate (NaOL) was utilized as the collector. Merely relying on NaOL alone made it extremely arduous
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Improving collecting selectivity of dithiophosphate collector towards the flotation separation of oxidized pentlandite from serpentine via designed hydrogen-bond interaction Miner. Eng. (IF 4.9) Pub Date : 2025-06-14 Chenyang Lv, Chenxu Zhang, Fengxiang Yin, Yao Yu, Lingxiao Gao, Wei Sun, Zhiyong Gao, Jian Cao
The effective recovery of oxidized pentlandite remains challenging in sulfide ore processing due to coexisting oxidized/sulfide surface regions and serpentine entrainment caused by conventional dithiophosphate (DTP) collectors. In this study, a novel low-foaming bifunctional collector was synthesized to address this issue. A range of dithiophosphate collectors featuring different alkoxy chain lengths
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An experimental and computational study of the role of cytochrome 2 in the adhesion of Acidithiobacillus ferrooxidans to pyrite in fresh and saline water Miner. Eng. (IF 4.9) Pub Date : 2025-06-14 Christopher D. Cooper, Bryan Rojas, Elizabeth González, Francisca San Martín
The use of Acidithiobacillus ferrooxidans is emerging as an alternative to enhance the performance of leaching and flotation in copper mining. This bacterium adheres to minerals like pyrite, oxidizing it, which facilitates its dissolution in leaching and depression in flotation. Acidithiobacillus ferrooxidans interacts with pyrite through Cytochrome 2, a membrane protein that induces oxidation. In
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Study on the screening performance of single-layer linear vibrating screen for sand and gravel particles Miner. Eng. (IF 4.9) Pub Date : 2025-06-13 Ruo-Fan Xiao, Yi-Xuan Zhao, Hong-Liang Dai, Yu-Cheng Wei
The global surge in infrastructure projects has escalated the demand for high-quality sand and gravel aggregates, creating pressing needs for enhanced screening efficiency and particle classification precision. This research develops a dynamic response model for single-layer linear vibrating screens, systematically examining how operational parameters (vibration frequency, amplitude, deck inclination
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Phase transformation of hematite to magnetite during CO reduction: Experimental and DFT-assisted insights Miner. Eng. (IF 4.9) Pub Date : 2025-06-13 Yuchao Qiu, Yongsheng Sun, Yuexin Han, Peng Gao
The reduction of iron oxides is crucial in mineral processing, metallurgy, and material science, particularly for optimizing iron ore reduction and beneficiation processes. In this study, the phase transformation of hematite to magnetite and metallic iron during CO reduction (CO concentrations = 10–60 %) was systematically examined under 400, 450, and 500 °C. X-ray diffraction refinement, chemical
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Study on the adsorption selectivity of a novel fatty acid collector on apatite, dolomite, and calcite surfaces for improved flotation Miner. Eng. (IF 4.9) Pub Date : 2025-06-13 Chun Zhang, Peng Liu, Weidi Zhang, Huan Dai, Yuhui Tian, Mengjie Tian, Wei Sun
Despite being a common choice for apatite flotation, oleic acid collector suffers from deficient selectivity. To resolve this constraint, this study introduces a novel fatty acid collector, α-sulfonate group mixed acid (α-SMA), a blend of C16 to C18 fatty acids containing an α-sulfonate group, as a replacement for oleic acid. This study compares the selectivities of α-SMA and oleic acid collectors
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Multi-directional disturbance effect of shear mechanical behaviors and fracturing mechanisms of rockmass intermittent structural plane under true triaxial shear test Int. J. Min. Sci. Technol. (IF 11.7) Pub Date : 2025-06-12 Zhi Zheng, Zhanpeng Ma, Jinghua Qi, Guoshao Su, Gaoming Lu, Shufeng Pei, Quan Jiang
After the excavation of deep mining tunnels and underground caverns, the stability of surrounding rock controlled by structural planes is prone to structural damage and even engineering disasters due to three-dimensional stress redistribution and multi-directional dynamic construction interference. However, the shear mechanical behavior, fracture evolution mechanism and precursor characteristics of
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A parameterized model reconstruction method for multi-mineral porous rocks Int. J. Rock Mech. Min. Sci. (IF 7.0) Pub Date : 2025-06-12 Yuliang Zhang, Xiangyu Xing, Guowei Ma, Qiang Sun
Rocks, composed of various minerals and defects, exhibit complex deformation and failure processes. Traditional analytical methods and homogenized medium-based models struggle to address such complexity. Developing a numerical model that closely mimics the structure of real rocks rather than only a replication of rock structure is a critical challenge. To address this, this work proposes a parameterized
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Chemometric study of mine tailings cementation, using NaOH or Mg(OH)2, for mine galleries backfilling Miner. Eng. (IF 4.9) Pub Date : 2025-06-12 Antonio J. Diosdado-Aragón, Martin J. Valenzuela-Díaz, Manuel Ruíz-Rodríguez, Jose Miguel Davila, Mercedes Becerra-Herrera, Manuel A. Caraballo
Mine tailings (MTs) are typically combined with ordinary Portland cement (OPC) and water to create a paste used for mine gallery backfilling (MGBF). While OPC is the traditional choice for achieving high uniaxial compressive strength (UCS), alternative alkaline agents like Mg(OH) 2 and NaOH are being explored to reduce costs and environmental impacts. This study compared the performance of Mg(OH) 2
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Exploring an alternative flowsheet for the recovery of magnetite from magnetite rich tailings Miner. Eng. (IF 4.9) Pub Date : 2025-06-12 Niyoshaka Lameck, Athule Ngqalakwezi, Vincent Sithole, Getrude Marape, Derek Rose, Beberto Baloyi
Due to the declining higher-grade hematite ore and increased demand for iron ore, magnetite rich tailings from previously processed ore deposits are increasingly being exploited. The flowsheets processing these tailings include ball milling to the size whereby the magnetite is liberated, followed by magnetic separation mostly using Wet Low Intensity Magnetic Separator (WLIMS) drums. Most of such tailings
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Study on the internal flow field characteristics and particle classification performance of hydrocyclones with complex curved inlet Miner. Eng. (IF 4.9) Pub Date : 2025-06-12 Qiang Liu, Peiyang Li, Feng Li, Yanchao Wang, Dongjin Guo, Hu Han
The application of hydrocyclones dates back over a century. Their simple structure, lack of moving components, and ease of disassembly have led to widespread adoption across diverse separation industries. As a crucial component of hydrocyclones, the inlet significantly influences classification efficiency. While prior studies have proposed reasonable modifications to inlet designs, most rely on a single
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Study on filtration performance and mechanism of different types of modified steel slag as the filter aid for bauxite residue Miner. Eng. (IF 4.9) Pub Date : 2025-06-11 Le Tao, Yanxiu Wang, Wei Sun, Zhiyong Gao, Chengwen Wang, Dandan Huang, Yingdi Dong
Bauxite residue, as industrial solid waste, presents many challenges in the filtration process due to its fine particle size, strong suspension, and high alkalinity. This paper compares the influence of two different components of modified steel slag (S1 and S2) on the filtration performance of bauxite residue. When the particle size was 45 μm (325 mesh) and the dosage was 10 g/L, it was found that
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Investigation on the production of oleic acid coated calcium carbonate from marble dust by flotation Miner. Eng. (IF 4.9) Pub Date : 2025-06-11 Ercan Polat, Taki Güler, Oktay Celep, Selçuk Aktürk
Marble slab cutting residue, known as marble dust, is discharged in the form of sludge in marble processing plants to such an extent that it threatens sustainability in marble mining in terms of environmental concerns. This rejected marble dust has a similar size distribution and mineralogical composition to the commercially available ground calcium carbonate, and therefore has a great potential for
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A novel dynamic history-based algorithm for flotation process optimisation Miner. Eng. (IF 4.9) Pub Date : 2025-06-11 Richmond Asamoah, Van Tran, Jixue Liu
In this paper, a novel dynamic history-based optimisation algorithm (DHOA) has been proposed and applied in the optimisation of two different copper flotation processes. The proposed algorithm dynamically optimizes flotation process for stable recovery, using historic patterns and predictive models. Performance of the proposed DHOA algorithm has been compared with naïve search-based algorithm (NSA)
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Effect of organic surfactant TRITON CG-110 on bioleaching of chalcopyrite Miner. Eng. (IF 4.9) Pub Date : 2025-06-11 Roozbeh Saneie, David G. Dixon, Edouard Asselin
Chalcopyrite leaching in acidic solutions is often hindered by slow kinetics due to surface passivation, which reduces copper leaching efficiency. This study explored the effects of Triton CG-110, a non-ionic surfactant, on chalcopyrite bioleaching facilitated by mesophilic acidophilic bacteria. Bio-oxidation experiments demonstrated that bacterial metabolism was enhanced with the addition of CG-110;
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Homogeneity-dependent fracture behavior and instability mechanism of composite coal-rock: Insights from three-point bending tests Int. J. Min. Sci. Technol. (IF 11.7) Pub Date : 2025-06-10 Weitao Yue, Enyuan Wang, Xiaojun Feng, Tingjiang Tan, Li Zhang, Dong Chen, Qiming Zhang, Zeng Ding
To investigate the instability mechanisms of heterogeneous geological structures in goaf area roofs, three-point bending tests (TPBT) and numerical simulations are performed on composite coal-rock (CCR). Acoustic emission (AE) monitoring is employed to analyze key parameters, establishing a multi-parameter quantitative system for CCR fracture processes. The impact of lithological homogeneity on fracture
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Sustainable utilization of red mud and bauxite tailings: mechanical and environmental perspectives in cemented backfill Miner. Eng. (IF 4.9) Pub Date : 2025-06-10 Jie Jiang, Qian Luo, Shufei Wang, Dengtao Wei, Yue Huang, Xiaoduo Ou
This study investigates the use of aluminum industry waste—red mud (RM) and bauxite tailings mud (BTM)—as raw materials for cemented tailings backfill (RB-CTB), focusing on its mechanical and environmental performance. This study evaluates the UCS of RB-CTB by adjusting the RM/BTM and binder/waste ratios. Among the 15 combinations tested, the optimal ratios of 1:2 (RM/BTM) and 1:7 (binder/waste) resulted
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Experimental study of the recovery of fine magnetite particles from gold leaching slag via HGMS-enhanced LIMS Miner. Eng. (IF 4.9) Pub Date : 2025-06-09 Liwei Wu, Minghui Gong, Feiwang Wang, Dai Zhang, Jinlei Wen, Lei Qi, Huixin Dai
A gold rock mine in Yunnan, rich in magnetite reserves, requires fine grinding to effectively recover the precious metal gold and enhance its degree of liberation. However, this fine grinding significantly reduces the particle size of magnetite, leading to a notable decrease in its specific magnetization as the particles become smaller. Consequently, low-intensity magnetic separation (LIMS) struggles
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Visual Information-guided Physics-Informed Neural Network (VI-PINN) for predictive forecasting and control of the flocculation sedimentation process Miner. Eng. (IF 4.9) Pub Date : 2025-06-09 Shuangcheng Du, Yingjie Chang, Yiren Wang, Hongjiang Wang
Real-time visual information holds significant potential for revealing the internal states of tailings flocculation-sedimentation processes in paste preparation. Although industry typically relies on turbidity measurements and researchers use flocculation degree (DF) for quantification, both indicators have physical lags of minutes in evaluating the flocculation and settling state of dense interiors
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Dioxime-based compound acted as a bi-functional collector to improve the collecting selectivity in the flotation separation of ilmenite from titanaugite Miner. Eng. (IF 4.9) Pub Date : 2025-06-09 Chenxu Zhang, Fengxiang Yin, Chenyang Lv, Yao Yu, Yijun Cao, Wei Sun, Zhiyong Gao, Jian Cao
The efficient flotation separation of ilmenite from associated gangue minerals remains a critical challenge in titanium ore beneficiation. In this study, a novel dioxime-based collector was synthesized and applied in ilmenite flotation, significantly improving both concentrate grade and recovery. Micro-flotation experiments demonstrated that the dioxime collector exhibited superior collecting ability
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Research and application mechanism of chlorination roasting for polymetallic minerals and waste Miner. Eng. (IF 4.9) Pub Date : 2025-06-09 Zhi-yu Fan, Long Wang, Ren-yun Zhang, Yi-yong Wang, Ting-an Zhang, Xing-jian Wang, Ji-dong Li, Xin-xin Zhao, Wei-juan Li
Metal recycling plays an important role in alleviating the shortage of critical metals and reducing primary mining. Chlorination roasting is an effective method for the comprehensive utilization of polymetallic minerals and waste and well proven process in the metallurgical industry. This review categorizes chlorinating agents used in this process into gaseous and solid chemicals, detailing the research
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Mechanical pre-treatment of waste solid oxide cell stacks Miner. Eng. (IF 4.9) Pub Date : 2025-06-08 John Bachér, Taina Kalliomäki, Waltteri Leskinen, Maisa Virtanen, Jouni Puranen, Antti Porvali
Clean hydrogen is recognized as one of the key energy vectors for the future, with electrolysis including high-temperature solid oxide cells (SOC) being the most prominent technology to meet the anticipated demand. The unique composition of SOC stacks and the growing demand for clean hydrogen create a strong incentive for securing raw material supply. Recycling can help to alleviate this pressure.
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Inhibition effect and mechanism of actinolite dissolution characteristics on quartz flotation Miner. Eng. (IF 4.9) Pub Date : 2025-06-07 Xueming Yin, Jin Yao, Bin Yang, Wanzhong Yin, Ningbo Song, Yu Xie, Jiayi Liu
The dissolution of complex silicate minerals has a significant influence on the flotation of quartz, but its effect and mechanism have not been clarified. In this work, the inhibition effect and mechanism of actinolite on quartz flotation using dodecylamine (DDA) as a collector were investigated via micro-flotation, mineral dissolution, adsorption tests, wrapping angle tests, Atomic Force Microscope
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Deviation from Young-Laplace theory in predicting bubble detachment in flotation Miner. Eng. (IF 4.9) Pub Date : 2025-06-07 Nhat N. Nguyen, Ngoc N. Nguyen, Tuan A.H. Nguyen, Anh V. Nguyen
Bubble-particle (BP) detachment is a critical mechanism in flotation, particularly for enhancing coarse particle recovery. The Young-Laplace theory (YLT) has long served as the foundation for modeling BP interactions and predicting detachment behavior, typically assuming detachment occurs at the three-phase contact line (TPCL). Here, we conducted novel bubble detachment experiments by manipulating
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Enhancing flotation separation of marmatite and pyrrhotite via the synergistic activation of marmatite by Cu2+ and EDP Miner. Eng. (IF 4.9) Pub Date : 2025-06-07 Yuanlin Ma, Yun Xiao, Xiong Tong, Changtao Wang, Xian Xie, Peiqiang Fan, Haitao Fu
Marmatite is of poor floatability and difficult to be activated, making its challenging to separate marmatite from pyrrhotite effectively. In this study, we successfully utilized the combined ethylenediamine phosphate (EDP) and Cu2+ to facilitate the activation of marmatite and achieved its selective separation from pyrrhotite, while the synergistic activation mechanism was uncovered. Single mineral
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Simulation of real tunnel convergences in soft rock using Discrete Element Method with Rate Process Theory Int. J. Rock Mech. Min. Sci. (IF 7.0) Pub Date : 2025-06-06 Weixing Qiu, J.G. Gutiérrez-Ch, S. Senent, Lianheng Zhao, R. Jimenez
Creep deformation of soft rock caused by tunnel excavation can produce significant safety and construction challenges. In this study, a Discrete Element Method (DEM) numerical model combining the Rate Process Theory (RPT) is developed, in conjunction with the Support Characteristic Curve (SCC) approach, to simulate creep-induced convergences of a tunnel excavated in soft rock. To achieve this, two-dimensional