Article
Engineering, Geological
Chaolin Wang, Yu Zhao, Lin Ning, Jing Bi
Summary: This study investigated the influence of stress on the evolution of coalbed methane permeability through compaction-permeability tests and in-situ nuclear magnetic resonance measurements. The results showed that permeability is closely related to coal pores, with an increase in damage leading to nonlinear permeability growth.
INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES
(2022)
Review
Materials Science, Multidisciplinary
Xiaoyu Zhang, Chunquan Li, Shuilin Zheng, Yonghao Di, Zhiming Sun
Summary: This paper introduces the physicochemical properties, synthesis process, application characteristics, and common application fields of zeolite derived from coal-based solid wastes. An efficient method of alkaline fusion-assisted supercritical hydrothermal crystallization is proposed, and the importance of alkaline waste liquid recycling and the application of zeolite in volatile organic compound adsorption removal is emphasized.
INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
(2022)
Article
Engineering, Geological
Junbao Wang, Qiang Zhang, Zhanping Song, Xinrong Liu, Xiaopeng Wang, Yuwei Zhang
Summary: This study conducted fatigue tests on salt rock specimens under different maximum cycling stresses to investigate the microstructural variations and damage evolution of salt rock under cyclic loading. The results showed that the pore radii varied with an increase in the number of cycles, and the porosity and permeability of the salt rock exhibited two-stage changes. The damage evolution process of the salt rock specimens consisted of three stages, with significant damage occurring near failure.
INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES
(2022)
Article
Metallurgy & Metallurgical Engineering
Marcelo Borges Mansur, Alexandre Silva Guimaraes, Martina Petranikova
Summary: This study reviews the methods and technologies used for recovering cobalt from end-of-life Li-ion batteries, highlighting the technical feasibility and importance of such recycling in meeting global demand for the metal with the rise of electric vehicles. Various recovery methods with different efficiency levels are described, some of which can be combined to enhance cobalt separation and recovery performance.
MINERAL PROCESSING AND EXTRACTIVE METALLURGY REVIEW
(2022)
Article
Engineering, Chemical
Ahmad Hassanzadeh, Mehdi Safari, Duong H. Hoang, Hamid Khoshdast, Boris Albijanic, Przemyslaw B. Kowalczuk
Summary: This paper critically evaluates the two different strategies in ore flotation processing: the classical mechanical flotation cells and the new flotation apparatuses. Through a comprehensive comparative study, it is found that the traditional mechanical cells are suitable for fine particle flotation, while the new apparatuses such as Jameson and RefluxTM flotation cells are highly efficient in recovering fine particles. In addition, fluidized bed and HydroFloatTM cells are suitable for coarse particle recovery.
MINERALS ENGINEERING
(2022)
Article
Engineering, Geological
Zhaofei Chu, Zhijun Wu, Zhiyang Wang, Lei Weng, Quansheng Liu, Lifeng Fan
Summary: The study found that the anisotropy of specimens significantly increases during creep, with a 30% difference in axial and lateral P-wave velocities at the onset of tertiary creep. Tensile cracks dominate the transient creep stage and the early part of the steady creep stage, while shear cracks dominate thereafter. The porosities of specimens increase with loading stages, with greater increments in porosity corresponding to small pores than those corresponding to large pores for all creep stages. Specimens with different degrees of creep damage exhibit greater deformability, with significant changes in short-term and creep mechanical parameters, except for uniaxial strength.
INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES
(2022)
Article
Mining & Mineral Processing
Quanle Zou, Zihan Chen, Zhiheng Cheng, Yunpei Liang, Wenjie Xu, Peiran Wen, Bichuan Zhang, Han Liu, Fanjie Kong
Summary: Coordinated exploitation of coal and coalbed methane is crucial for the safe extraction of both resources. This study proposes the concept of coupling coordinated exploitation and develops an evaluation model and an optimization algorithm to achieve intelligent deployment of coal and coalbed methane operations. The results demonstrate that this method promotes the safe and efficient exploitation of coal and coalbed methane resources.
INTERNATIONAL JOURNAL OF MINING SCIENCE AND TECHNOLOGY
(2022)
Article
Engineering, Chemical
Jianhua Chen, Yuqiong Li
Summary: The selectivity of reagents to minerals is crucial, but the mechanism behind it is not fully understood. This study used density functional theory calculations to investigate the orbital symmetry matching between flotation reagents and metal ions on mineral surfaces. The results show that the symmetry matching plays a significant role in determining the collecting ability of the reagents.
MINERALS ENGINEERING
(2022)
Article
Materials Science, Multidisciplinary
Dongyao Zhang, Chuanchang Li, Niangzhi Lin, Baoshan Xie, Jian Chen
Summary: In this study, mica was used as a supporting matrix for composite phase change materials (PCMs), and its interaction with polyethylene glycol (PEG) was investigated. The results showed that mica could stabilize PEG, and the composite PCM exhibited improved thermal properties, indicating its potential application in building energy conservation.
INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
(2022)
Review
Materials Science, Multidisciplinary
Zhuo Cheng, Shuize Wang, Guilin Wu, Junheng Gao, Xusheng Yang, Honghui Wu
Summary: Tribology, the study of friction, wear, and lubrication, is crucial for understanding the service performance of structural materials. High-entropy alloys (HEAs), with their excellent hardness and wear resistance, show great potential in enhancing the tribological properties. This review provides insights into the tribological behavior of HEAs and strategies for improving their performance, both at room temperature and elevated temperatures.
INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
(2022)
Article
Mining & Mineral Processing
Jiayao Chen, Hongwei Huang, Anthony G. Cohn, Dongming Zhang, Mingliang Zhou
Summary: This paper proposes a hybrid ensemble classifier that combines SMOTE, RS hyper-parameters optimization algorithm, and GBT for efficient and accurate rock trace identification. A thirteen-dimensional database is established from image samples to classify data points as trace or non-trace. Experimental results show that the proposed classifier outperforms other classifiers for both trace and non-trace classifications. Discussions on feature importance, generalization ability, and classification error are conducted.
INTERNATIONAL JOURNAL OF MINING SCIENCE AND TECHNOLOGY
(2022)
Article
Mining & Mineral Processing
Tao Zhang, Liyuan Yu, Haijian Su, Qiang Zhang, Shaobo Chai
Summary: This study investigates the degradation mechanism of static tensile mechanical behaviors in marble containing dynamic damage. Multiple impact loading tests and numerical simulations were conducted to observe the surface changes, such as white patches, microcracks, macro-fractures, and pulverized grains. The static tensile strength decreases with the increase of dynamic damage, leading to enhanced grain interactions, increased strain, and larger fragment volumes. Stress concentration and force chain breakage are identified as the root causes of the degradation of static tensile strength.
INTERNATIONAL JOURNAL OF MINING SCIENCE AND TECHNOLOGY
(2022)
Article
Mining & Mineral Processing
Shibing Huang, Yingbo He, Shilin Yu, Chen Cai
Summary: Sandstone strength loss under freeze-thaw actions is influenced by water content, with higher water content leading to more severe damage. The UCS loss of sandstones is mainly caused by water weakening within a specific saturation range. The proposed strength prediction model accurately and easily estimates the UCS loss of sandstones after any freeze-thaw cycle without the need for experiments.
INTERNATIONAL JOURNAL OF MINING SCIENCE AND TECHNOLOGY
(2022)
Article
Engineering, Geological
Zhenyu Han, Diyuan Li, Xibing Li
Summary: This study investigates the effects of axial pre-force and loading rate on the dynamic fracture behavior of rocks through coupled static-dynamic tests. The results show that both pre-force and loading rate have an impact on fracture parameters, with loading rate having a more significant effect. A new method based on the DIC technique is proposed to calculate crack opening distance (COD) and crack propagation velocity (CPV), improving efficiency and accuracy compared to traditional methods. The findings provide important insights into rock fracture dynamics and crack propagation.
INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES
(2022)
Article
Geology
N. K. Libeesh, K. A. Naseer, S. Arivazhagan, A. F. Abd El-Rehim, Ghada ALMisned, H. O. Tekin
Summary: The Pakkanadu Ultramafic-Alkaline-Carbonatite complex in Salem district has been studied using geochemical and remote sensing methods. The study found that the dunite sample, with the highest Fe2O3 content, exhibited superior shielding properties. This suggests that the composition and density of the studied materials directly impact their properties, and that the superior shielding properties of dunite are worth investigating for other radiation types.
ORE GEOLOGY REVIEWS
(2022)
Article
Energy & Fuels
Bilal Acemioglu
Summary: The study focused on using activated biochar produced from peanut shell wastes to remove the reactive dye RO-RGB from aqueous solution. It was found that the adsorption capacity increased with higher initial dye concentration and temperature, while decreasing with higher pH.
INTERNATIONAL JOURNAL OF COAL PREPARATION AND UTILIZATION
(2022)
Article
Mining & Mineral Processing
Gang Wang, Yanqing Li, Enmao Wang, Qiming Huang, Shibin Wang, Huaixing Li
Summary: This study investigates the influence of nanofluids on the wettability of coal surface. The experiments show that composite nanofluids can enhance the wettability of coal, and the effects are related to the metamorphic degree and particle size of coal.
INTERNATIONAL JOURNAL OF MINING SCIENCE AND TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Jinshu Xie, Zhi Zhang, Shujuan Liu, Jinghuai Zhang, Jun Wang, Yuying He, Liwei Lu, Yunlei Jiao, Ruizhi Wu
Summary: Two new low-alloyed Mg-2RE-0.8Mn-0.6Ca-0.5Zn alloys with excellent extrudability and superior mechanical properties, especially high-temperature strength, have been developed.
INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
(2023)
Article
Geochemistry & Geophysics
Aqsa Anees, Hucai Zhang, Umar Ashraf, Ren Wang, Kai Liu, Ayesha Abbas, Zaheen Ullah, Xiaonan Zhang, Lizeng Duan, Fengwen Liu, Yang Zhang, Shucheng Tan, Wanzhong Shi
Summary: The estimated tight gas reserves in the Hangjinqi area are 700 billion cubic meters. This study focuses on the depositional framework and sedimentary facies analysis of the first member of the lower Shihezi formation. Geological modeling, seismic attributes, and petrophysical modeling are used to identify the presence of braided channels and channel-bars. The results confirm favorable reservoir quality for gas production in the Hangjinqi area.
Article
Geosciences, Multidisciplinary
Lucie Novakova, Lenka Novotna, Michaela Prochazkova
Summary: The paper evaluates the mutual relationship of copper and zinc prices between 2011 and 2021 and predicts their future prices. The results suggest a slight decrease in copper price and a slight increase in zinc price, with a price convergence between the two commodities.
ACTA MONTANISTICA SLOVACA
(2022)
