Most recent issue published online in the International Journal of Mining and Mineral Engineering.
International Journal of Mining and Mineral Engineering
http://www.inderscience.com/browse/index.php?journalID=265&year=2023&vol=14&issue=4
Inderscience Publishers Ltd
en-uk
support@inderscience.com
International Journal of Mining and Mineral Engineering
1754-890X
1754-8918
© 2024 Inderscience Enterprises Ltd.
© 2023 Inderscience Publishers Ltd
editor@inderscience.com
International Journal of Mining and Mineral Engineering
https://www.inderscience.com/images/files/coverImgs/ijmme_scoverijmme.jpg
http://www.inderscience.com/browse/index.php?journalID=265&year=2023&vol=14&issue=4
-
New MIP model for short-term planning in open-pit mines considering loading machine performance: a case study in Iran
http://www.inderscience.com/link.php?id=137375
Effective short-term planning in open pit mines relies on factors like equipment performance, crucial for meeting predetermined goals. Improper planning can lead to delays, necessitating a proactive approach to predict and minimise production deviations. This paper introduces a mathematical mixed integer programming (MIP) model, factoring in uncertainties related to machine availability, a key metric reflecting the quality of machine performance. Implemented in an open-pit iron mine in Iran, the model employs a stochastic approach, optimising 30 times with different random seeds for availability distributions. Results indicate improved compliance with production goals, delivering ore of superior quantity and quality for processing. A 4% enhancement in ore attainment is observed when comparing stochastic and deterministic approaches to availability parameters, underscoring the impact on block sequencing and allocation to loading machines. This study highlights the model's significance in enhancing short-term planning and mitigating uncertainties in open-pit mining operations.
New MIP model for short-term planning in open-pit mines considering loading machine performance: a case study in Iran
Mohammad Mirzehi; Mojtaba Rezakhah; Amin Mousavi; Zohreh Nabavi
International Journal of Mining and Mineral Engineering, Vol. 14, No. 4 (2023) pp. 341 - 364
Effective short-term planning in open pit mines relies on factors like equipment performance, crucial for meeting predetermined goals. Improper planning can lead to delays, necessitating a proactive approach to predict and minimise production deviations. This paper introduces a mathematical mixed integer programming (MIP) model, factoring in uncertainties related to machine availability, a key metric reflecting the quality of machine performance. Implemented in an open-pit iron mine in Iran, the model employs a stochastic approach, optimising 30 times with different random seeds for availability distributions. Results indicate improved compliance with production goals, delivering ore of superior quantity and quality for processing. A 4% enhancement in ore attainment is observed when comparing stochastic and deterministic approaches to availability parameters, underscoring the impact on block sequencing and allocation to loading machines. This study highlights the model's significance in enhancing short-term planning and mitigating uncertainties in open-pit mining operations.]]>
10.1504/IJMME.2023.137375
International Journal of Mining and Mineral Engineering, Vol. 14, No. 4 (2023) pp. 341 - 364
Mohammad Mirzehi
Mojtaba Rezakhah
Amin Mousavi
Zohreh Nabavi
Department of Mining Engineering, Faculty of Engineering, Tarbiat Modares University, Jalal AleAhmad, Nasr, Tehran, Iran ' Department of Mining Engineering, Faculty of Engineering, Tarbiat Modares University, Jalal AleAhmad, Nasr, Tehran, Iran ' Department of Mining Engineering, Faculty of Engineering, Tarbiat Modares University, Jalal AleAhmad, Nasr, Tehran, Iran ' Department of Mining Engineering, Faculty of Engineering, Tarbiat Modares University, Jalal AleAhmad, Nasr, Tehran, Iran
short-term mine planning
optimisation
availability
equipment performance
mixed integer programming
MIP
Iran
2024-03-14T23:20:50-05:00
Copyright © 2024 Inderscience Enterprises Ltd.
14
4
341
364
2024-03-14T23:20:50-05:00
-
Investigations for the low gold recovery at Mpanda Mineral Field in Western Tanzania
http://www.inderscience.com/link.php?id=137370
This study investigated the main causes of low gold recovery obtained at the Mpanda Mineral Field (MMF) and recommended a potential treatment process. The ore samples were characterized to establish chemical, mineralogy, and total organic carbon (TOC) information. It was found that the main causes of low gold recovery are the presence of copper minerals (covellite, cuprite, and chalcocite), metallic copper (>0.5% Cu), and carbonaceous materials indicated by the TOC contents (>2.5%). The chemical analysis showed that the investigated ores contained greater than 2.9 ppm gold. Box-Behnken experimental design was adopted to investigate the effects of the experimental factors on gold recovery. The maximum gold recovery of 89.4% was achieved using the following parameter levels: 0.50 M Na<SUB align="right">2S<SUB align="right">2O<SUB align="right">3, 0.94 M NH<SUB align="right">3, and 0.06 M CuSO<SUB align="right">4. Generally, the problem faced at MMF is caused by the reactive copper minerals and carbonaceous materials. Thiosulphate leaching is recommended to be the treatment process.
Investigations for the low gold recovery at Mpanda Mineral Field in Western Tanzania
Jeremiah Mosingo; Alphonce Wikedzi
International Journal of Mining and Mineral Engineering, Vol. 14, No. 4 (2023) pp. 365 - 379
This study investigated the main causes of low gold recovery obtained at the Mpanda Mineral Field (MMF) and recommended a potential treatment process. The ore samples were characterized to establish chemical, mineralogy, and total organic carbon (TOC) information. It was found that the main causes of low gold recovery are the presence of copper minerals (covellite, cuprite, and chalcocite), metallic copper (>0.5% Cu), and carbonaceous materials indicated by the TOC contents (>2.5%). The chemical analysis showed that the investigated ores contained greater than 2.9 ppm gold. Box-Behnken experimental design was adopted to investigate the effects of the experimental factors on gold recovery. The maximum gold recovery of 89.4% was achieved using the following parameter levels: 0.50 M Na<SUB align="right">2S<SUB align="right">2O<SUB align="right">3, 0.94 M NH<SUB align="right">3, and 0.06 M CuSO<SUB align="right">4. Generally, the problem faced at MMF is caused by the reactive copper minerals and carbonaceous materials. Thiosulphate leaching is recommended to be the treatment process.]]>
10.1504/IJMME.2023.137370
International Journal of Mining and Mineral Engineering, Vol. 14, No. 4 (2023) pp. 365 - 379
Jeremiah Mosingo
Alphonce Wikedzi
Department of Mining and Mineral Processing Engineering, College of Earth Sciences and Engineering, The University of Dodoma, P.O. Box 259 Dodoma, Tanzania ' Department of Mining and Mineral Processing Engineering, School of Mines and Geosciences, University of Dar es Salaam, P.O. Box 35131, Dar es Salaam, Tanzania
vat leaching
thiosulphate leaching
reactive copper minerals
carbonaceous materials
total organic carbon
Box-Behnken experimental design
Mpanda Mineral Field
MMF
Tanzania
gold
copper-gold ores
2024-03-14T23:20:50-05:00
Copyright © 2024 Inderscience Enterprises Ltd.
14
4
365
379
2024-03-14T23:20:50-05:00
-
Flotation kinetics on upgraded rare earth bearing placer monazite, Bramhagiri coast, Odisha, India
http://www.inderscience.com/link.php?id=137373
This paper presents about the flotation kinetics on upgraded rare earth bearing placer monazite, Bramhagiri coast, Odisha, India. The feed for the flotation kinetics is the product obtained from placer sand after gravity, high-tension and magnetic separation which contains 52.3% monazite. The final results of the study showed that flotation required 10 min to collect -200 μm size (52.3% monazite). The -100 + 75 μm size fraction (90.57% monazite) also takes ten minutes to collect, while the -200 + 180 μm size fraction (0.06% monazite) takes six minutes to collect. Therefore, monazite kinetic data from this study confirm that flotation time varies with the feed level of monazite and also depends on the feed size.
Flotation kinetics on upgraded rare earth bearing placer monazite, Bramhagiri coast, Odisha, India
Deependra Singh; Bighnaraj Mishra; Sunita Routry; Raghupatruni Bhima Rao
International Journal of Mining and Mineral Engineering, Vol. 14, No. 4 (2023) pp. 380 - 396
This paper presents about the flotation kinetics on upgraded rare earth bearing placer monazite, Bramhagiri coast, Odisha, India. The feed for the flotation kinetics is the product obtained from placer sand after gravity, high-tension and magnetic separation which contains 52.3% monazite. The final results of the study showed that flotation required 10 min to collect -200 μm size (52.3% monazite). The -100 + 75 μm size fraction (90.57% monazite) also takes ten minutes to collect, while the -200 + 180 μm size fraction (0.06% monazite) takes six minutes to collect. Therefore, monazite kinetic data from this study confirm that flotation time varies with the feed level of monazite and also depends on the feed size.]]>
10.1504/IJMME.2023.137373
International Journal of Mining and Mineral Engineering, Vol. 14, No. 4 (2023) pp. 380 - 396
Deependra Singh
Bighnaraj Mishra
Sunita Routry
Raghupatruni Bhima Rao
AcSIR-Institute of Minerals and Materials Technology, Sachivalaya Marg, RRL Campus, Acharya Vihar, 751013, Bhubaneshwar, Odisha, India; Department of Atomic Energy, Indian Rare Earths Limited, Mumbai 400028, India ' Department of Atomic Energy, Indian Rare Earths Limited, Mumbai 400028, India ' C V Raman Global University, Bidyanagar, Mahura, Janla, Bhubaneswar 752054, India ' Department of Atomic Energy, Indian Rare Earths Limited, Mumbai 400028, India; Formerly: CSIR-Institute of Minerals and Materials Technology, Sachivalaya Marg, RRL Campus, Acharya Vihar, 751013, Bhubaneshwar, Odisha, India
Bramhagiri placer deposit
monazite
cerium
kinetics
collector
depressant
flotation
rare earths
Odisha,
India
2024-03-14T23:20:50-05:00
Copyright © 2024 Inderscience Enterprises Ltd.
14
4
380
396
2024-03-14T23:20:50-05:00
-
A new roof cutting technique to enhance the stability of underground tunnels and improve the recovery rate of coal resources: a case study
http://www.inderscience.com/link.php?id=137374
Narrowing the protective coal pillar width in roadways can enhance coal resource recovery rates. Yet, this adjustment leads to narrower coal pillars, triggering instability in the adjacent rock and significant area deformation issues. To optimise the coal pillar width and maintain the stability of underground roadway, a new directional roof cutting technique was proposed. This technique was used to form directional, continuous, glossy, long-distance crack through the cooperation of the perforating pipe, perforating charge, and dynamite for directional cracks made by composite blasting at different times and spaces. This technique as an integral part of the 'ground hydraulic fracturing + X' integrated technology, offers a pathway to stress relief underground. Due to its strong directional fracturing and excellent permeability in rock formations, it significantly expands the applicability of the 'ground hydraulic fracturing + X' technique in tunnelling and rock engineering. This technology provides scientific guidance for underground mining in ultra-thick coal seams.
A new roof cutting technique to enhance the stability of underground tunnels and improve the recovery rate of coal resources: a case study
Rui Gao; Yongqing Lin; Zengchao Feng; Xianglin Dai; Xiangbin Meng
International Journal of Mining and Mineral Engineering, Vol. 14, No. 4 (2023) pp. 397 - 420
Narrowing the protective coal pillar width in roadways can enhance coal resource recovery rates. Yet, this adjustment leads to narrower coal pillars, triggering instability in the adjacent rock and significant area deformation issues. To optimise the coal pillar width and maintain the stability of underground roadway, a new directional roof cutting technique was proposed. This technique was used to form directional, continuous, glossy, long-distance crack through the cooperation of the perforating pipe, perforating charge, and dynamite for directional cracks made by composite blasting at different times and spaces. This technique as an integral part of the 'ground hydraulic fracturing + X' integrated technology, offers a pathway to stress relief underground. Due to its strong directional fracturing and excellent permeability in rock formations, it significantly expands the applicability of the 'ground hydraulic fracturing + X' technique in tunnelling and rock engineering. This technology provides scientific guidance for underground mining in ultra-thick coal seams.]]>
10.1504/IJMME.2023.137374
International Journal of Mining and Mineral Engineering, Vol. 14, No. 4 (2023) pp. 397 - 420
Rui Gao
Yongqing Lin
Zengchao Feng
Xianglin Dai
Xiangbin Meng
College of Mines, Taiyuan University of Technology, Taiyuan, Shanxi 030024, China ' Key Laboratory of In-situ Property-Improving Mining of Ministry of Education, Taiyuan University of Technology, Taiyuan, Shanxi 030024, China ' Key Laboratory of In-situ Property-Improving Mining of Ministry of Education, Taiyuan University of Technology, Taiyuan, Shanxi 030024, China ' College of Mines, Taiyuan University of Technology, Taiyuan, Shanxi 030024, China ' College of Mines, Taiyuan University of Technology, Taiyuan, Shanxi 030024, China
coal resource
roadway stability
surrounding rock control
composite blast
directional crack forming
2024-03-14T23:20:50-05:00
Copyright © 2024 Inderscience Enterprises Ltd.
14
4
397
420
2024-03-14T23:20:50-05:00
-
Feasibility of pure calcium carbonate project at Zwizya, Central Jordan
http://www.inderscience.com/link.php?id=137379
Jordan has a substantial number of economically viable limestone deposits of 1.3 billion tonnes reserves which provide both comparative and competitive advantages on a worldwide scale. The goal of this paper is to determine whether or not the feasibility of the pure calcium carbonate project at Zwizya, Central Jordan has a chance of being successful if it is ever put into action. With an NPV of $US6.06 million, an Internal rate of return of roughly 52.19%, a discounted payback period of 2.35 years, and a capital efficiency index of 2.51, the project seemed to be feasible. According to the findings from the Monte Carlo simulation, it was determined that the Zwizya project has a 10.7% likelihood of encountering a negative net present value (NPV), while there is an 89.3% possibility of attaining a positive NPV. In turn, this will entice domestic and international financiers to engage in limestone-related endeavours.
Feasibility of pure calcium carbonate project at Zwizya, Central Jordan
Awwad Titi; Rami Al Rawashdeh
International Journal of Mining and Mineral Engineering, Vol. 14, No. 4 (2023) pp. 421 - 446
Jordan has a substantial number of economically viable limestone deposits of 1.3 billion tonnes reserves which provide both comparative and competitive advantages on a worldwide scale. The goal of this paper is to determine whether or not the feasibility of the pure calcium carbonate project at Zwizya, Central Jordan has a chance of being successful if it is ever put into action. With an NPV of $US6.06 million, an Internal rate of return of roughly 52.19%, a discounted payback period of 2.35 years, and a capital efficiency index of 2.51, the project seemed to be feasible. According to the findings from the Monte Carlo simulation, it was determined that the Zwizya project has a 10.7% likelihood of encountering a negative net present value (NPV), while there is an 89.3% possibility of attaining a positive NPV. In turn, this will entice domestic and international financiers to engage in limestone-related endeavours.]]>
10.1504/IJMME.2023.137379
International Journal of Mining and Mineral Engineering, Vol. 14, No. 4 (2023) pp. 421 - 446
Awwad Titi
Rami Al Rawashdeh
Department of Mining Engineering, College of Engineering, Al-Hussein Bin Talal University, P.O. Box (20) Ma'an, Jordan ' Department of Mining Engineering, College of Engineering, Al-Hussein Bin Talal University, P.O. Box (20) Ma'an, Jordan
pure limestone
Zwizya
feasibility study
Jordan
ore reserve
net present value
NPV
internal rate of return
IRR
discounted payback period
DPP
2024-03-14T23:20:50-05:00
Copyright © 2024 Inderscience Enterprises Ltd.
14
4
421
446
2024-03-14T23:20:50-05:00