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Optimized canopy air curtain dust protection using a two-level manifold and computational fluid dynamics
By Mirza Muhammad Zaid, Nana A. Amoah, Ping Chang, Guang Xu, Ashish R. Kumar
The key takeaway of this study is the significant improvement in dust protection for roof bolter operators in underground coal mines. The optimized canopy air curtain (CAC), with a redesigned two-leve
Dec 1, 2024
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A sustainable complexation leaching of critical metals from spent lithium-ion batteries by glycine in a neutral solution
By Jaeheon Lee, Junmo Ahn, Jiajia Wu
To reduce the environmental footprint of hydrometallurgical processing of black mass from spent lithium-ion batteries (LIBs), a green leaching system based on glycine and sodium metabisulfite (Gly-SMS
Dec 1, 2024
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Identifying the prone zones to initiation of unstable failure by numerical simulation of mining pillars under compression
By A. Doroudgar, H. Noferesti
Unstable rock failure or rock bursting is one of the most dangerous problems in deep hard rock mines. This type of failure, that occurs uncontrollably, is associated with a significant release of stra
Nov 27, 2024
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Investigating the effect of different loading scenarios on the performance of wheel loaders: A case study on Can Lignite Enterprises
By A. Çelik
Wheel loaders are widely used in many sectors due to their mobility, operational flexibility, and low costs. The literature is mainly focused on improving the hydraulic, mechanical, and electronic sub
Nov 27, 2024
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Fracturing of rock ahead of the face of an excavation and its relevance to mechanized excavation
By M. Mokgohloa, T. R. Stacey
Boring of tunnels and shafts in hard rock under high stress conditions is becoming more common as mines and tunnels are developed at greater depths. Under the high stress conditions, fracturing of the
Nov 27, 2024
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The role of leadership in technology adoption in the South African mining industry
By J. Uys, P. J. Mokganya, J. Olwagen, R. C. W. Webber-Youngman
This article discusses the critical role of leadership in the technology adoption process within organizations, particularly in industries like mining, where innovation is essential for maintaining co
Nov 27, 2024
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Back analysis of LG6/LG6A chromitite pillar strength using displacementn discontinuity modelling
By D. F. Malan, P. J. Le Roux
Almost no work has been published on the strength of pillars in mines exploiting the LG6/LG6A chromitite bands in the Western Bushveld Complex. The strength of these pillars is unknown, and the hard r
Nov 27, 2024
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Development of a physical separation pre-concentration process for the extraction of Rare Earth bearing ore
By A. Singh, K. Bisaka, G. Marape, T. Mokgomola
This paper investigated the pre-concentration amenability of sovite (carbonatite) ore to enhance the grade of rare earth elements (REE) bearing minerals by rejecting calcite, and to improve total rare
Nov 6, 2024
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An information entropy-based risk (IER) index of mining safety using clustering and statistical methods
By Snehamoy Chatterjee, Dharmasai Eshwar, Aref Majdara, Rennie Kaunda, HUGH MILLER
The U.S. mining industry has made progress in reducing accidents and injuries, but interpreting safety data remains difficult due to changes in workforce size and productivity. The Mine Safety and Hea
Nov 1, 2024
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Flyrock in surface mining–Part 3: Shock wave, stress wave, blasthole expansion
By T. Szendrei, S. Tose
The generally accepted view in rock blasting is that the sources of energy for the fracture and movement of rock reside in the shock wave and gas action resulting from the explosion, and yet the mecha
Oct 9, 2024
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Behaviour of paddled energyabsorbing rockbolts under complex loading laboratory conditions
By J. Hadjigeorgiou, G. Knox
Since their introduction in 2010, paddled energy-absorbing rockbolts have been widely used in seismically active hard rock mines. This paper provides new data and reviews previous work to quantify the
Oct 9, 2024
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Presidential Address: Metallurgical slags: A drive to circularity and search for new research agenda
By E. Matinde
Poor phase separation and fine dissemination of the desired components within congruous slag phases are key challenges limiting the recoverability of values from slags by conventional beneficiation me
Oct 9, 2024
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Paste Slot Raise Drilling, a Novel Alternative to Slot Drilling in Long Hole Stoping: A Case Study
By Gurupraveen Ramanathan
Slot raises are relief holes within a stope in longhole stoping methods, designed to provide a free face that facilitates the expansion of the blasted rock during blasting, ultimately achieving the de
Oct 1, 2024
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Assessing dilution, ore loss and profit differences from various hand-drawn dig limits compared to optimal ore-waste delineations in deposits of variable heterogeneity
By Fouad Faraj
For every blast pattern, zones of unique material types need to be classified before mining. Most material types can be summarized into different kinds of ore and waste. Blocks generated from blasthol
Oct 1, 2024
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Maximizing the processing of polymetallic concentrates via actinide separation and rare earth retrieval
By Mona M. Fawzy, Ahmed A. Eliwa, Ebrahim A. Gawad, Ahmed H. Orabi, Amal E. Mubark
The growing demand for rare earth elements (REEs) has led to numerous recent studies to recover these elements from various bearing ores and wastes. Therefore, the recovery of REEs from Ras Baroud pol
Oct 1, 2024
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Geochemical and mineralogical characterization and resource potential of the Namib Pb–Zn tailings (Erongo Region, Namibia)
By S. Lohmeier, D. Gallhofer, B. G. Lottermoser
In Southern Africa, historic mining and mineral processing of base metal deposits have almost exclusively focussed on the extraction of major metals, leading to the loss of remaining valuable raw mate
Sep 9, 2024
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Reducing mining tailings and operational dilution: a new application of the room-and-pillar mining method
By G. de Tomi, G. C. Teodoro, E. Rodovalho, T. M. El Hajj, J. A. S. Tenório
The selection of an underground mining method stems from a multivariate analysis that considers geomechanical, geological, economic, and operational parameters. Even after identifying the most compati
Sep 9, 2024
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Field-portable X-ray fluorescence analyzer for chemical characterization of carbonate-bearing base metal tailings: case study from Namib Pb–Zn Mine, Namibia
By S. Lohmeier, D. Gallhofer, B. G. Lottermoser
Reprocessing of historic gold tailings is a common activity in South Africa, while base metal tailings offer similar reprocessing potential. The historic base metal tailings of the Namib Pb–Zn mine (E
Sep 9, 2024
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Presidential Address: Metallurgical slags: A drive to circularity and search for new research agenda - Volume 124
By E. Matinde
Human beings have been dependent on metals and alloys for livelihoods since time immemorial. In fact, there is irrefutable evidence that successful ancient civilizations achieved supremacy over their
Sep 1, 2024
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Empowering mining communities – the importance of local business hubs for skills development
By L Mackinlay
The Apeketon Business Hub in Lihir, Papua New Guinea, emerged in 2019 through a partnership between Australian Business Volunteers (ABV) and Lihir Gold Limited (LGL), a subsidiary of Newmont Corporati
Sep 1, 2024