Article
Mining & Mineral Processing
Guangjin Wang, Bing Zhao, Bisheng Wu, Chao Zhang, Wenlian Liu
Summary: Based on the analysis of 77 field cases, this study selects five quantitative indicators (slope angle, slope height, internal friction angle, cohesion, and unit weight of rock and soil) to improve the accuracy of slope stability prediction models. The data aggregation and visualization of slope stability prediction are conducted using six-dimensional reduction methods, and seven prediction models are established and evaluated using random cross validation. The results show that random forest, support vector machine, and k-nearest neighbor algorithms achieve the highest prediction accuracy (>90%), with slope height being the most significant factor influencing slope stability. Random forest and support vector machine models exhibit the best accuracy and superiority in slope stability prediction, providing a new approach for geotechnical engineering.
INTERNATIONAL JOURNAL OF MINING SCIENCE AND TECHNOLOGY
(2023)
Article
Engineering, Chemical
Xun Wang, Bing Zhao, Jie Liu, Yimin Zhu, Yuexin Han
Summary: In this study, dithiouracil was successfully used as a chalcopyrite depressant to separate molybdenite, with the mechanism of depression explored through various analytical methods. The results indicate that dithiouracil can be a highly effective depressant for chalcopyrite, offering potential for Cu-Mo flotation separation.
MINERALS ENGINEERING
(2022)
Article
Materials Science, Multidisciplinary
Minjie Shi, Hangtian Zhu, Cong Chen, Jintian Jiang, Liping Zhao, Chao Yan
Summary: This study proposes a novel design of a composite cathode material for aqueous zinc-ion batteries, integrating graphene quantum dots with zinc-intercalated manganese dioxide nanosheets. The composite cathode exhibits enhanced charge-transfer capability, high electrochemical reversibility, and superior storage capacity, kinetics, and structural stability. These impressive properties make it a promising candidate for efficient electrochemical storage devices in various energy-related fields.
INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
(2023)
Review
Metallurgy & Metallurgical Engineering
Feng Gao, Afolabi Uthmon Olayiwola, Biao Liu, Shaona Wang, Hao Du, Jianzhong Li, Xindong Wang, Donghui Chen, Yi Zhang
Summary: This review discusses the production, clean production, and current status of the vanadium industry, providing important information for researchers.
The sustainable development of the vanadium industry has significant impacts on multiple industries.
MINERAL PROCESSING AND EXTRACTIVE METALLURGY REVIEW
(2022)
Article
Energy & Fuels
Man Li, Yong Duan, Xianli He, Maolin Yang
Summary: This study proposes an image processing based method for accurately positioning and identifying coal and gangue samples, and also develops a positioning and identification system. Experimental results show that the method performs well in terms of identification accuracy and positioning precision.
INTERNATIONAL JOURNAL OF COAL PREPARATION AND UTILIZATION
(2022)
Article
Engineering, Chemical
Wei Ding, Shenxu Bao, Yimin Zhang, Junhui Xiao
Summary: This study systematically investigated the effect and mechanism of ultrasound on the leaching of gallium and zinc from corundum flue dust (CFD). The results showed that ultrasound could significantly increase the leaching efficiencies of gallium and zinc. The enhancement of ultrasound was attributed to the breaking of particle agglomerates, improving sulfuric acid diffusion, and accelerating the reaction between sulfuric acid and amorphous silicate.
MINERALS ENGINEERING
(2022)
Article
Mining & Mineral Processing
Manchao He, Qiru Sui, Mengnan Li, Zhijiao Wang, Zhigang Tao
Summary: In recent years, the mine tunneling method and the new Austrian tunneling method have been considered the main theories of tunneling approaches in China. The traditional technique faces difficulties in dealing with the large deformation problems caused by complex geological conditions in mountain soft rock tunneling. Therefore, the compensation excavation method has been proposed to address this issue by using supportive strategies to counteract the excavation effects.
INTERNATIONAL JOURNAL OF MINING SCIENCE AND TECHNOLOGY
(2022)
Article
Mining & Mineral Processing
Zhenyu Han, Diyuan Li, Xibing Li
Summary: Filled inclusions in rock discontinuities have a significant impact on the mechanical characteristics and stability of rock engineering. Experimental results show that the interlayer strength influences wave propagation and fracture processes. Increasing interlayer stiffness leads to higher transmission coefficient, strength, closure, and stiffness. The cement mortar layer acts as a buffer, while a weaker interlayer causes slabbing near the rock-mortar interface.
INTERNATIONAL JOURNAL OF MINING SCIENCE AND TECHNOLOGY
(2022)
Article
Geochemistry & Geophysics
Jiajian Li, Shuai Cao, Erol Yilmaz
Summary: This study investigated the macro and micromechanical properties of backfilling materials made using solid wastes. The findings identified factors that affect the mechanical properties of these materials. The research results provide valuable scientific reference for the preparation of backfilling materials.
Article
Metallurgy & Metallurgical Engineering
Wei Ding, Shenxu Bao, Yiming Zhang, Junhui Xiao
Summary: This study explores the highly selective process steps for extracting Scandium from red mud, and achieves high leaching efficiency under optimal conditions. The sulfation-roasting-water leaching process proves to be a promising and commercially viable technique.
MINERAL PROCESSING AND EXTRACTIVE METALLURGY REVIEW
(2023)
Article
Mining & Mineral Processing
Kun Du, Xuefeng Li, Rui Su, Ming Tao, Shizhan Lv, Jia Luo, Jian Zhou
Summary: In this study, the influence of shape ratios on the mechanical properties of rectangular prism rock specimens and isolated pillars under uniaxial compressive stress was investigated. The results showed that the height to width ratio and width to thickness ratio had a significant influence on the bearing ability of rocks. A novel strength prediction model of isolated pillars based on the shape ratios was proposed.
INTERNATIONAL JOURNAL OF MINING SCIENCE AND TECHNOLOGY
(2022)
Article
Energy & Fuels
Zhiping Wen, Changchun Zhou, Jinhe Pan, Shanshan Cao, Tingting Hu, Wanshun Ji, Tiancheng Nie
Summary: Coal fly ash contains rare-earth elements mainly trapped in the glassy phase, making their recovery challenging. This research focuses on grinding and alkali pre-treatment to enhance the leaching recovery of rare-earth elements from coal fly ash.
INTERNATIONAL JOURNAL OF COAL PREPARATION AND UTILIZATION
(2022)
Article
Energy & Fuels
Anupama Routray, Pradipta Kumar Senapati, Mamata Padhy, Debadutta Das
Summary: This study uses a medium ash coal and prepares four different samples with varying ratios of fine and coarse fractions. The flow behavior of the coal water slurry is characterized, and the Bingham plastic model is applied to analyze its non-Newtonian behavior. Sample 1 exhibits the highest coal loading in the presence of additive solution.
INTERNATIONAL JOURNAL OF COAL PREPARATION AND UTILIZATION
(2022)
Review
Engineering, Chemical
Deniz Talan, Qingqing Huang
Summary: Rare earth elements (REEs) are crucial for technology and defense industries, but the environmental impact of rare earth mining has not been thoroughly studied. This review summarizes the environmental consequences of rare earth extraction processes and discusses separation techniques for radioactive materials from rare earths.
MINERALS ENGINEERING
(2022)
Article
Engineering, Chemical
Jamal Ait Brahim, Sara Ait Hak, Brahim Achiou, Rachid Boulif, Redouane Beniazza, Rachid Benhida
Summary: This review focuses on the kinetics of extracting REEs from secondary resources, providing insights into leaching kinetics and mechanisms. The study reviews various kinetics approaches, models, and parameters influencing kinetics. Comparative analysis of different REEs secondary resources is also conducted.
MINERALS ENGINEERING
(2022)
Article
Materials Science, Multidisciplinary
Huazhe Jiao, Weilin Chen, Aixiang Wu, Yang Yu, Zhuen Ruan, Rick Honaker, Xinming Chen, Jianxin Yu
Summary: This research analyzes the effects of turbulence intensity and flocculant adding method on the size, strength, and movement characteristics of tailings flocs. A pilot-scale continuous thickening test was conducted to validate the results and the findings have significant implications for optimizing thickener operation.
INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
(2022)
Article
Mining & Mineral Processing
Hao Shi, Lei Song, Houquan Zhang, Wenlong Chen, Huasheng Lin, Danqi Li, Guozhu Wang, Huayun Zhao
Summary: Understanding the progressive debonding mechanism of bolts is crucial for underground safety. This paper conducted laboratory experiments and numerical simulations of pull-out tests. The relationship between the pull-out strength of the bolt and the uniaxial compressive strength of the cement mortar material was established, and the locations of cracks were identified using the acoustic emission technique. The results revealed that the axial displacement of the cement mortar material at the peak load was approximately 5 mm, and the peak load of the bolt increased with the strength of the confining medium.
INTERNATIONAL JOURNAL OF MINING SCIENCE AND TECHNOLOGY
(2022)
Article
Engineering, Chemical
Lei Zhang, Xue-yi Guo, Qing-hua Tian, Dong Li, Shui-ping Zhong, Hong Qin
Summary: Non-cyanide gold leaching combined with mechanical activation and the addition of sodium lignosulfonate proved to be an efficient and promising method for gold extraction, showing potential for scaling up.
MINERALS ENGINEERING
(2022)
Article
Engineering, Chemical
Yan Zhang, Mingyao Cui, Jianguo Wang, Xiaoliang Liu, Xianjun Lyu
Summary: Cyanide is highly toxic and poses environmental risks in gold extraction. Extensive research has been conducted to find eco-friendly alternatives, leading to the successful development of novel synthetic gold lixiviants (NESGLs) such as Jinchan. These NESGLs are less toxic compared to cyanide and have achieved comparable gold recoveries without altering the cyanidation process. The growing industrial applications of NESGLs suggest a potential shift away from cyanide dominance.
MINERALS ENGINEERING
(2022)
Article
Engineering, Chemical
Wenjuan Zhao, Meili Wang, Bin Yang, Qicheng Feng, Dianwen Liu
Summary: Copper-ammonium species were introduced to improve surface sulfidization and flotation performance, showing superior activation compared to individual copper ions. This improved reactivity between the mineral surface and sulfide and xanthate species. The research results provide a potential technology for efficient recovery of zinc oxide minerals through sulfidization xanthate flotation.
MINERALS ENGINEERING
(2022)
