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Olivine compositions reveal an andesitic parent magma for the Archean palladium-mineralized Lac des Iles Complex of Ontario, Canada Miner. Deposita (IF 4.8) Pub Date : 2024-05-14 W. D. Smith, L. Fay, J. E. Mungall, M. Shahabi Far, L. Djon
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Peritectic orthopyroxene entrainment during partial melting of garnet peridotite produced the Bushveld Complex chromite deposits Miner. Deposita (IF 4.8) Pub Date : 2024-05-14 Tahnee Otto, Gary Stevens, Jean-François Moyen, Matthew J Mayne, John D Clemens
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On quantification of equivalent permeability tensor in sparsely fractured rock masses Int. J. Rock Mech. Min. Sci. (IF 7.2) Pub Date : 2024-05-14 P. Pakdel, S. Pietruszczak
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Effect of seawater and dissolved cations on scorodite synthesis via iron coprecipitation Miner. Eng. (IF 4.8) Pub Date : 2024-05-12 Wei Sung Ng, Miao Chen
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Constraining the stress field and its variability at the BedrettoLab: Elaborated hydraulic fracture trace analysis Int. J. Rock Mech. Min. Sci. (IF 7.2) Pub Date : 2024-05-10 Kai Bröker, Xiaodong Ma, Shihuai Zhang, Nima Gholizadeh Doonechaly, Marian Hertrich, Gerd Klee, Andrew Greenwood, Eva Caspari, Domenico Giardini
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A methodology for phase characterization in pellet feed using digital microscopy and deep learning Miner. Eng. (IF 4.8) Pub Date : 2024-05-10 Thalita Dias Pinheiro Caldas, Karen Soares Augusto, Julio Cesar Alvarez Iglesias, Bernardo Amaral Pascarelli Ferreira, Richard Bryan Magalhães Santos, Sidnei Paciornik, Alei Leite Alcantara Domingues
This work proposes a new method for characterizing pellet feed, employing Deep Learning (DL) and Convolutional Neural Networks (CNNs). The main minerals in the composition of the studied pellet feed are hematite, magnetite, goethite, and quartz. Over time, several characterization methodologies have been developed that use Digital Microscopy and Image Analysis tools. The greatest difficulties in this
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Bubble shape in the prediction of terminal velocities in flotation Miner. Eng. (IF 4.8) Pub Date : 2024-05-10 Cesar O. Gomez, Miguel Maldonado
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Cross-scale analysis on the mechanical behavior of the conglomerate of Yulin Grottoes in China Int. J. Rock Mech. Min. Sci. (IF 7.2) Pub Date : 2024-05-09 Huihui Zhang, Qinglin Guo, Yanwu Wang, Shibin Tang, Tianjiao Li, Qi Zhang, Chun'an Tang
Investigating the mechanical properties of the surrounding rock of the caves is crucial for the preservation of grotto heritage sites. To comprehend the mechanical characteristics of conglomerates in the Dunhuang region of China, various experiments were utilized, including Scanning Electron Microscope, X-ray Diffraction, CT scanning, nanoindentation, and mechanical tests. These methods enabled the
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Amplification in the Uncertainty of the Yield and Recovery for a Steady-State Mineral Separator calculated using the Two-Product Formula Miner. Eng. (IF 4.8) Pub Date : 2024-05-09 S.M. Iveson, K.P. Galvin
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Insights into fluid evolution and Re enrichment by mineral micro-analysis and fluid inclusion constraints: Evidence from the Maronia Cu-Mo ± Re ± Au porphyry system in NE Greece Miner. Deposita (IF 4.8) Pub Date : 2024-05-04 Jan J. Falkenberg, Manuel Keith, Vasilios Melfos, Max Hohl, Karsten M. Haase, Panagiotis Voudouris, Alica Höss, Julia Wenske, Reiner Klemd, Christoph Beier, Martin Kutzschbach, Harald Strauss
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Hosts of Sn in reduced deep-seated W skarn systems: A case study on the world-class scheelite skarn deposit, Zhuxi, South China Miner. Deposita (IF 4.8) Pub Date : 2024-05-06 Shiwei Song, Jingwen Mao, Rolf L. Romer, Wei Jian, Yongpeng Ouyang
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The role of hydrothermal processes and the formation of the J-M reef and associated rocks of olivine-bearing zone I of the Stillwater Complex, Montana Miner. Deposita (IF 4.8) Pub Date : 2024-05-07 A. R. Gupta, Alan E. Boudreau
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Fluid evolution of the Lindero porphyry gold deposit, NW Argentina: the critical role of salt melts in ore formation Miner. Deposita (IF 4.8) Pub Date : 2024-05-07 Valeria Simόn, Peter Koděra, Volker Lüders, Robert B. Trumbull, Marcelo Arnosio, Emilce Bustos, Louis Desanois, Marta Sośnicka, Cora Wohlgemuth-Ueberwasser
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Influence of pre-existing crack on rockburst characteristics in coal-rock combination: A laboratory investigation Int. J. Rock Mech. Min. Sci. (IF 7.2) Pub Date : 2024-05-08 Xiaoling Zhao, Zhiyi Liao, Xiufeng Zhang, Peiwang Cao, Rui Li, Jianbo Zhu
The existing cracks in the roof rock are critical to stability of the coal-rock combination structure during mining activities, which is vital for safe exploitation in coal mines. However, the physical mechanisms by which pre-existing crack in the roof rock induces rockburst in coal mines are still poorly understood. In this study, to investigate the rockburst characteristics in an underground mine
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New approach to reduce carbon emissions by hydrogen reduction of boron-bearing iron concentrate in a fluidized bed: Reduction kinetics and microstructure analysis Miner. Eng. (IF 4.8) Pub Date : 2024-05-08 Peiyu Li, Jianwen Yu, Yanjun Li, Peng Gao, Yuexin Han
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Energy evolution and strain localization in fractured sandstone under freeze-thaw cycling and uniaxial loading-unloading Int. J. Rock Mech. Min. Sci. (IF 7.2) Pub Date : 2024-05-06 Hao Tan, Yongjun Song, Huimin Yang, Yongxin Che
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Evolutionary patterns of shear behavior and crack distribution during fault slip Int. J. Rock Mech. Min. Sci. (IF 7.2) Pub Date : 2024-05-04 Hongxu Shi, Jianpo Liu, Shuzeng Liu, Jiahui Chang, Fengtian Li
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A comprehensive review on recent progress in beneficiation of Nb-bearing minerals /Nb ores Miner. Eng. (IF 4.8) Pub Date : 2024-05-03 Tian Congzhong, Zou Wenjie, Liu Fengyang, Lu Yuxin, Zhang Zhijun, Li Zhengyao
Mainly produced by Brazil and Canada, the global production of niobium (Nb) surpassed 79,000 tons in 2022. Among the 150 kinds of Nb-bearing minerals, pyrochlore, columbite and tantalite are the predominant primary sources. There are several challenges in Nb ores’ beneficiation, such as low abundance in earth crust (20 ppm), fine dissemination in primary ores, and the poor performance of amines collectors
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Evaluation of disodium carboxymethyl trithiocarbonate as a depressant reagent for chalcocite: An electrochemical approach Miner. Eng. (IF 4.8) Pub Date : 2024-05-03 Arait Montoya, Ivan Reyes, Roel Cruz, Isabel Lázaro, Néstor Castillo-Magallanes, Rogelio Flores, Israel Rodríguez
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Deterioration of dynamic fracture properties of granite under the coupled effects of hydrochemical solutions and freeze-thaw cycles Int. J. Rock Mech. Min. Sci. (IF 7.2) Pub Date : 2024-05-02 Caoyuan Niu, Xiaohan Li, Lei Zhou, Zheming Zhu, Feng Dai, Jianxing Chen
Fractured rock mass is a kind of complex rock mass widely existing in engineering projects, which is often subjected to erosion by different pH hydrochemical solutions such as surface water, acid rain, acidic and alkaline wastewater discharge, and deicing salts. When the rock project in a cold region suffers from the coupled effects of hydrochemical solutions and freeze-thaw (FT) cycles, the frost
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Dynamic shear behaviours of granite under coupled static and high-rate loadings Int. J. Rock Mech. Min. Sci. (IF 7.2) Pub Date : 2024-05-02 Kai Liu, Jian Zhao
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Flotation performance and adsorption mechanism of α-hydroxyoctyl phosphinic acid to pyrochlore Miner. Eng. (IF 4.8) Pub Date : 2024-05-02 Hongling Wang, Hong Zhong, Fangxu Li, Qingbo Meng, Di Wu, Shuangke Li
The flotation performance and adsorption mechanism of α-hydroxyoctyl phosphinic acid (HPA) on pyrochlore were investigated through micro-flotation experiments, zeta-potential tests, contact angle measurements and XPS analysis. The flotation results demonstrated that, in comparison to N-hexadecylpropane-1,3-diamine (NHDA), HPA exhibited a comparable collecting ability for pyrochlore but displayed superior
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Enhanced chalcopyrite leaching by mechanical activation: New insights from microstructure Miner. Eng. (IF 4.8) Pub Date : 2024-05-02 Congren Yang, Yuxin Li, Zuyuan Tian, Wenqing Qin, Xueduan Liu, Xu Wang
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Behavior of froth in absence and presence of particles Miner. Eng. (IF 4.8) Pub Date : 2024-05-01 Stoyan I. Karakashev, Dilyana S. Ivanova-Stancheva, Nikolay A. Grozev, Kristina M. Mircheva
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Experimental study on response and precursor of pressure stimulated currents of combined coal-rock under cycling stress Int. J. Rock Mech. Min. Sci. (IF 7.2) Pub Date : 2024-04-30 Zhonghui Li, Tiancheng Shan, Enyuan Wang, Yue Niu, Xiaoran Wang, Xin Zhang, Haishan Jia, Dong Chen, Shan Yin, Weichen Sun
The coal-rock combination body is prone to rock burst and surface subsidence under loading, and adopting effective monitoring methods are valuable. In this paper, cyclic loading and unloading (CLU) tests were conducted to investigate the response and precursor of pressure stimulated currents (PSCs) in coal-rock combination samples. The results indicate that the PSCs of the coal-rock combination samples
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Insight into the elastoplastic behavior of Beishan granite influenced by temperature and hydraulic pressure Int. J. Rock Mech. Min. Sci. (IF 7.2) Pub Date : 2024-04-30 Haiyang Yi, Hongwei Zhou, Olaf Kolditz, Dongjie Xue
Granite is an ideal host rock for high-level radioactive waste (HLW) repositories. In the deep environment of HLW repositories, granite is subjected to variable temperature and hydraulic pressure. In order to investigate the influence of temperature and hydraulic pressure on the elastoplastic behavior of the Beishan granite, the present paper implemented a set of triaxial compression experiments at
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Where are the feeder channels for platinum reefs in the Bushveld Complex? Miner. Deposita (IF 4.8) Pub Date : 2024-04-30 Rais Latypov, Sofya Chistyakova
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Degradation of residual xanthates in mineral processing wastewater-A review Miner. Eng. (IF 4.8) Pub Date : 2024-04-29 Xingjie Wang, Miaoxin Chen, Liyuan Ma, Piia Juholin, Devin J. Sapsford
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Flotation separation of magnesite from dolomite with gellan gum as depressant and its depression mechanism Miner. Eng. (IF 4.8) Pub Date : 2024-04-29 Long Wang, Zongxu Li, Hao Zhang, Lingyun Huang, Yangge Zhu, Fuping Li
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Investigation of leaching of nickel sulfide flotation tailings to recover valuable metals Miner. Eng. (IF 4.8) Pub Date : 2024-04-29 Emmanuel Atta Mends, Angela Manka Tita, Shokrullah Hussaini, John Samuel Thella, Lei Pan, Pengbo Chu
The global transition towards renewable energy, driven by low-carbon theories and technologies, has resulted in an increasing surge in the demand for critical and unique elements, of which nickel (Ni) and copper (Cu) are encompassed. In this investigation, using acid leaching, the recovery of such elements from polymetallic tailings to supplement conventional extraction processes was studied. The effective
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A stacked deep multi-kernel learning framework for blast induced flyrock prediction Int. J. Rock Mech. Min. Sci. (IF 7.2) Pub Date : 2024-04-27 Ruixuan Zhang, Yuefeng Li, Yilin Gui, Danial Jahed Armaghani, Mojtaba Yari
Blasting operations are widely and frequently used for rock excavation in Civil and Mining constructions. Flyrock is one of the most important issues induced by blasting operations in open pit mines, and therefore needs to be well predicted in order to identify the safety zone to prevent the potential injuries. For this purpose, 234 sets of blasting data were collected from Sungun Copper Mine site
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Freezing deformation of saturation-dependent porous media considering interface energy and microstructure effects: From thermodynamics-based macroscopic constitutive relation to micromechanical upscaling model Int. J. Rock Mech. Min. Sci. (IF 7.2) Pub Date : 2024-04-27 Weiqi Guo, Jinhui Tang, Fengjuan Wang, Jinyang Jiang, Wenxiang Xu
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An automated mineralogy derived criterion for clustering ore samples for mineral liberation studies Miner. Eng. (IF 4.8) Pub Date : 2024-04-27 Rodrigo Fina Ferreira, Rosa Malena Fernandes Lima
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Continuously compressing crushing towards a dry processing method, a testing for graphite ore Miner. Eng. (IF 4.8) Pub Date : 2024-04-27 Niina Paasovaara, Samuel Hartikainen, Sirpa Peräniemi, Hannu Kuopanportti, Shenghong Yang
In this study the comminution methods of graphite bearing ore were compared by using five different crushing methods, namely a jaw crusher, a roll crusher, uniaxial compression tests, and a new type of continuously compressing crushers. These new continuously compressing crushers were available in laboratory and pilot scales. The particles in the + 1700 µm size class produced by continuously compressing
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Review of the effects of coal properties and activation parameters on activated carbon production and quality Miner. Eng. (IF 4.8) Pub Date : 2024-04-27 William Spencer, Gamini Senanayake, Mohammednoor Altarawneh, Don Ibana, Aleksandar N. Nikoloski
Activated carbon (AC) products are valuable for adsorption applications due to their high internal pore volume, surface area, surface functionality and strong adsorbent properties, which allow the capture of various ions and impurities in many applications, including precious metals recovery, water treatment, and gas purification. This review found that most of the world's AC is derived from bituminous
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Effects of 1,2-diaminopropane on the formation of chelated copper on chrysocolla surfaces and its response to flotation Miner. Eng. (IF 4.8) Pub Date : 2024-04-27 Rong Peng, Haoxiang Wang, Zhicong Wei, Jianjun Fang, Xiaolin Zhang, Peilun Shen, Dianwen Liu
In this study, the effect of 1,2-diaminopropane (1,2-DAP) on the formation of chelated copper on chrysocolla surfaces and its response to flotation was investigated. The results showed that 1,2-DAP effectively activates chrysocolla. Micro-flotation test revealed that using 50–70 mg/L of 1,2-DAP as an activator and 1.8 × 10 mol/L of sodium isoamyl xanthate (SIAX) as a collector increased chrysocolla
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Control of heap leach piles using deep reinforcement learning Miner. Eng. (IF 4.8) Pub Date : 2024-04-26 Claudio Canales, Simón Díaz-Quezada, Francisco Leiva, Humberto Estay, Javier Ruiz-del-Solar
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Deliquescence and salt transport in damaged rock salt under humidity cycling: Experimental and theoretical analysis Int. J. Rock Mech. Min. Sci. (IF 7.2) Pub Date : 2024-04-25 Zhen Zeng, Hongling Ma, Kai Zhao, Youqiang Liao, Chunhe Yang
Salt caverns used for compressed air energy storage (CAES) undergo daily humidity cycling. The damaged surrounding rock contains extremely high deliquescent sodium chloride (NaCl) levels. This study used experimental and theoretical approaches to examine the dynamic deliquescence and salt transport behavior of damaged rock salt under humidity cycling. We uniaxially compressed rock salt to different
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Transparent gelatin as a reservoir analogue: Dimensional scaling for hydraulic fracturing laboratory experiments Int. J. Rock Mech. Min. Sci. (IF 7.2) Pub Date : 2024-04-25 Andreas Michael
Gelatin is frequently used as a reservoir analogue for modeling hydraulic fracture (HF) growth in brittle, organic-rich rocks; its transparency enabling direct, visual observation of the HF growth. However, not many works have assessed the scalability of laboratory experiments on gelatin blocks with-respect-to “real-world” HF stimulation treatments. In this work, lab-scale parameters are compared against
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Co-processing of e-waste with natural resources and their products to diversify critical metal supply chains Miner. Eng. (IF 4.8) Pub Date : 2024-04-25 I.M.S.K. Ilankoon, R.A.D.P. Dilshan, Nimila Dushyantha
E-waste generation has been exponential due to technological advancements, urbanisation and modern lifestyles, reduced replacement intervals of consumer electronics, lack of design-for-environment components in electrical and electronic equipment, lack of repairs and high costs of repairs. 62 million tonnes of e-waste was generated in 2022, equivalent to 7.8 kg of e-waste per person per year. E-waste
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Sedimentary and metamorphic processes priming black shale for magmatic assimilation of sulfur: an example from the Virginia Formation, Minnesota, United States Miner. Deposita (IF 4.8) Pub Date : 2024-04-25 Ville J. Virtanen, Jussi S. Heinonen, Lena Märki, Matthieu E. Galvez, Ferenc Molnár
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Experimental investigation of the hydro-mechanical response of soft rocks in the CO2 injection process - Impacts of fracture roughness and brittleness index on the evolution of permeability behavior Int. J. Rock Mech. Min. Sci. (IF 7.2) Pub Date : 2024-04-24 Takashi Fujii, Yasuki Oikawa, Xinglin Lei, Masao Sorai
Understanding the hydro-mechanical response of a reservoir and its surrounding rocks to the CO pressure build-up during CO injection process is a key challenge in the safe implementation of CO capture and storage (CCS) technologies. These responses are expected to depend on the type of formation properties, such as hardness of the reservoir rocks. This study investigates permeability behavior of various
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Experimental and numerical investigation of turbulent multiphase jets Miner. Eng. (IF 4.8) Pub Date : 2024-04-24 Till Zürner, Vikrant Kamble, Roland Rzehak, Kerstin Eckert
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Sulfide saturation in reduced magmas during generation of the Gangdese juvenile lower crust: Implications for porphyry Cu–Au mineralization in the Gangdese belt, Tibet Miner. Deposita (IF 4.8) Pub Date : 2024-04-24 Jin-Lei Sun, Zhong-Jie Bai, Hong Zhong, Xu Liu, Jing-Jing Zhu, Lan Chen, Wei-Guang Zhu
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Stability of a thin film of water formed between a bubble and a quartz surface with acoustic sound Miner. Eng. (IF 4.8) Pub Date : 2024-04-20 Bingyu Yang, Hangil Park, Liguang Wang
Froth flotation, a versatile particle separation technology, is widely used for beneficiation of minerals. Central to the flotation process is the bubble-particle interaction. Recent research progress showed that flotation efficiency could be improved by acoustic sound, which was attributed to increased froth stability, but it was not clear as to whether the acoustic sound would also enhance the bubble-particle
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Optimization of Upper group 2 flotation using Acidithiobacillus ferrooxidans as a modifier Miner. Eng. (IF 4.8) Pub Date : 2024-04-20 Nokubonga G. Zulu, Bongephiwe M. Thethwayo, Mapilane Madiba
Coupling of biotechnology and mineral processing arise from the depletion of high-grade ores. () is a chemolithotroph, γ-proteobacterium, gram negative bacteria that has been used in biomining over the years due to its ability of bio mobilising valuable minerals and metals. In this study, the ability of ability to modify and pre-concentrate base metal sulphides from Upper Group 2 (UG2) was investigated
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Characterisation of the multiphase fluid dynamics of the CoarseAIR™ fluidised bed flotation cell using the Large Modular Array (LaMA) for positron emission particle tracking (PEPT) Miner. Eng. (IF 4.8) Pub Date : 2024-04-19 Diego Mesa, Dawid M. Hampel, Stephen J. Neethling, Tzany Kokalova Wheldon, Pablo R. Brito-Parada
Fluidised bed flotation cells (FBFCs) present a compelling solution for coarse particle flotation, enabling an increase in the target particle size in comminution circuits, with the corresponding energy savings. Despite their potential and strong industrial interest, the three-phase fluid dynamics of large-scale FBFCs remain unexplored due to measurement complexities and size restrictions. This paper
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Strain energy dependent numerical simulation of rock fracture initiation and propagation using soundless cracking demolition agents (SCDA): Effects of SCDA-filled rock joints Int. J. Rock Mech. Min. Sci. (IF 7.2) Pub Date : 2024-04-18 V.R.S. De Silva, H. Konietzky, Ranjith P.G., U.I. Manatunga
Soundless Cracking Demolition Agents (SCDA) are gaining traction as an innovative technique for controlled rock fracturing in applications such as underground energy, mineral extraction, and excavation. This paper presents a novel numerical approach to simulate SCDA-charged rock fracture initiation using the strain energy density of SCDA. This approach eliminates the need for prior knowledge of the
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A micromechanics-based model for rocks exhibiting microcrack-induced damage in plastic solid matrix Int. J. Rock Mech. Min. Sci. (IF 7.2) Pub Date : 2024-04-18 Y. Shi, W.Q. Shen, J.F. Shao
This work is devoted to modeling plastic deformation and microcrack-induced damage in quasi-brittle rocks under compression-dominating stresses. At the microscopic scale, a set of randomly distributed microcracks are embedded in an isotropic elastic–plastic solid matrix. The plastic deformation, microcrack propagation and frictional sliding are inherently coupled. By combining a rigorous homogenization
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Water weakening and the compressive brittle strength of carbonates: Influence of fracture toughness and static friction Int. J. Rock Mech. Min. Sci. (IF 7.2) Pub Date : 2024-04-17 Corentin Noël, Barnaby Fryer, Patrick Baud, Marie Violay
Water is ubiquitous within the pore space of rocks and has been shown to affect their physical and mechanical behaviour. Indeed, water can act on the rock strength via mechanical (i.e., reducing the effective stresses) or chemical effects (e.g., mineral dissolution, mineral alteration, subcritical crack growth, etc.). As rock macroscopic strength is controlled by both fracture toughness and friction
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The migration and volatilization of toxic elements during briquette pyrolysis procedure Miner. Eng. (IF 4.8) Pub Date : 2024-04-17 Juan Chen, Jianjun Wu, Yixin Zhang, Yang Guo, Long Yan, Jian Li, Zhenkun Guo, Bi Chen, Hua Wang
Briquetting technique can be an excellent energy saving utilization of pulverized coal, and the thermal chemical treatment of briquette has attracted the extensive attention of researchers due to its efficiency and applicability. To reveal the migration and volatilization characteristic of toxic trace elements (As, Se and Cd) during pyrolysis procedure of briquette, this paper studied the effects of
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Comparison of circuits over time in Canadian practice Miner. Eng. (IF 4.8) Pub Date : 2024-04-17 James A. Finch, Yue Hua Tan
Evaluation of circuits in Canadian practice based on surveys in 1957 and 2020 was used to identify the common types and whether there was any change over time. Three-stage circuits were considered along with a measure of circuit separation efficiency. The rougher-scavenger-cleaner and rougher-cleaner-cleaner still dominate, together comprising over 60% usage. Correlation against circuit separation
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Exopolysaccharide (EPS) synthesised from Azotobacter vinelandii and its characterisation and application in bioflotation Miner. Eng. (IF 4.8) Pub Date : 2024-04-17 Zejun Wang, Qing Shi, Bo Miao, Binbin Li, Sen Li
In this study, we investigated microbial flotation as a green separation technology in mineral processing. We explored their potential use as environmentally friendly depressants for chlorite by extracting and purifying exopolysaccharides (EPS) from () and comparing them with commercial alginate. Results showed that EPS derived from under different fermentation substrates, particularly carbon sources
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A phase-field model for blasting-induced failure and breakage analysis in rock masses Int. J. Rock Mech. Min. Sci. (IF 7.2) Pub Date : 2024-04-16 Sijia Liu, Miaomiao Kou, Zaiquan Wang, Yongjun Zhang, Fei Liu
In this work, we propose a new phase-field formulation with dynamic JH2 constitutive model in the updated Lagrangian finite element framework for capturing the blasting-induced failure and breakage phenomena in rock masses. We innovatively formulate phase-field evolution by taking mechanical strengths and failure/breakage characteristics of rock materials at intact and residual states under dynamic
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Permeation–strain characteristics and damage constitutive model of coal samples under the coupling effect of seepage and creep Int. J. Rock Mech. Min. Sci. (IF 7.2) Pub Date : 2024-04-15 Qiangling Yao, Yong Li, Xuehua Li, Liqiang Yu, Chuangkai Zheng
Developing and utilizing mining water resources in ecologically fragile mining areas in western China require underground reservoir technologies. However, the creep and permeability of coal pillar dams under the coupling of overburden pressure and stock water seepage are not well understood. This hinders the control of their long-term stability. This study aimed to reveal these features by examining
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Effect of pH and current density on the physical properties of cobalt obtained by electrowinning from sulfate solutions Miner. Eng. (IF 4.8) Pub Date : 2024-04-15 Fabiano Augusto Costa Mafra Passos, Jonas da Cruz Trajano de Souza, Iranildes Daniel dos Santos, Reiner Neumann, Pedro Paulo Medeiros Ribeiro, Achilles Junqueira Bourdot Dutra
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Shapley analysis of the effect of operational variables on recovery and grades of a Knelson concentrator Miner. Eng. (IF 4.8) Pub Date : 2024-04-15 Jessica Frigger, Chris Aldrich, Xiu Liu, Boris Albijanic
Gold ore deposits are decreasing in grade and are becoming more complex in nature. The Knelson gravity concentrator is an attractive option for processing these ores, though it is normally used for free-milling, because they are already widely accepted in the industry and are relatively easy to operate. However, more work needs to be done to optimise the operating conditions for these ore types. In
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Identifying true collectorless flotation of chalcopyrite in calcium chloride solutions Miner. Eng. (IF 4.8) Pub Date : 2024-04-14 Minsu Hwang, Yufan Mu, Liang Cao, Yongjun Peng
Given the increasing use of seawater containing primary ions (e.g. Na and Cl) and secondary ions (e.g. Ca and Mg) in flotation plants to counteract the global freshwater scarcity, more and more studies have been performed to determine the impacts of seawater on mineral flotation behaviors. From a new and practical niche, this study aimed to determine the natural floatability of chalcopyrite in the
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Efficient removal of the residual ammonium from weathered crust elution-deposited rare earth tailings by a ternary compound eluent Miner. Eng. (IF 4.8) Pub Date : 2024-04-13 Xiaoju Li, Junxia Yu, Xiaodi Li, Rong Wang, Fang Zhou, Zhenyue Zhang, Chunqiao Xiao, Ruan Chi
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The In-Ga-Sb association of the post-Variscan Zn-Pb-Ag vein deposit at Lautenthal, Upper Harz Mountains, Germany: sphalerite mineral chemistry Miner. Deposita (IF 4.8) Pub Date : 2024-04-13 Torsten Graupner, Sören Henning, Simon Goldmann, Sebastian Fuchs, Klaus Stedingk, Wilfried Liessmann, Sven Birkenfeld