Search Documents
Search Again
Search Again
Refine Search
Refine Search
-
A model for the leaching of non-porous particles
By B. K. Loveday
A model for the leaching of non-porous particles by B. K. LOVEDAY*, Ph.D. (Fellow) A model has been developed for the prediction of the rate of leaching for an assemblage of non-porous particles in te
Jan 9, 1975
-
A novel flotation collector for desilicication from magnesite by reverse flotation, X.X. Hu, Y.G. Zhu, and G.B. Zheng
By Y. G. Zhu, G. B. Zheng, X. X. Hu
Reverse flotation by cationic collectors is the classical method to reduce the silicon content in magnesite. But because of the low selectivity, there is a large loss of magnesite in the reverse flota
Jan 1, 2020
-
Evaluating destress blasting for rock fracture and rockburst prediction in deep level hardrock mining
By C. Yi, M. Onifade, B. Genc, S. Dineva, T. Zvarivadza, M. Khandelwal
Deep level hardrock mining faces increasing challenges from elevated in situ stresses and associated rockbursts. This study aims to develop a systematic framework for evaluating destress blasting effe
Jun 27, 2025
-
Development of a beneficiation process in bench scale for chromite tailings, L. Petzold
By L. Petzold
The demand for stainless steel is ever-increasing. As an essential element in stainless steel-making process, so is the demand of chromite concentrate. At the same time, the industry proven technologi
Jan 1, 2020
-
Development Of Innovative Funding Mechanisms For Mining Start-Ups: A South African Case
By J. Mothomogolo
Mining projects are capital-intensive and are also characterized by high technical and economic risks. These factors pose challenges to mining entrepreneurs when they seek to raise seed capital for mi
Jan 1, 2012
-
Identification of structures capable of hosting the ML 5.5 Orkney South Africa earthquake and factors controlling the physics and mechanics of dynamic rupture
By R. J. Durrheim, Y. Yabe, M. S. D. Manzi, DSeis team, N. Z. Nkosi, S. B. Mngadi, Jr. H. Ogasawara
On 5 August 2014, the Orkney M5.5 earthquake, the largest in South African gold mining districts, occurred with an unusual strike-slip mechanism at great depth of 4.78 km below the surface. In a rare
Jan 12, 2025
-
The Application Of Viscometry To The Hydraulic Transport Of Backfill Material
By P. T. Slatter
The role of viscometers for rheological characterization in the hydraulic transport of solids is discussed, and rheological models and phenomena pertinent to the hydraulic transport of backfill materi
Jan 1, 1988
-
Development of a novel soft sensor for flotation process of copper ore with neural network and variable selection, X. Ning, Z. Guihong, Y. Hu, S. Kai, M. Shiyi, L. Xianjie, W. Junpenga, and Duan Weijie
By D. Weijie, S. Kai, Y. Hu, X. Ning, M. Shiyi, W. Junpeng, Z. Guihong, L. Xianjie
Flotation is one of the most important processes in the copper production industry. The copper grade in the concentrate is a pivotal indicator of the flotation process performance. However, it is diff
Jan 1, 2020
-
Improvement of iron-ore processing performance and inclusion of ores with low concentrating ability in processing, R.I. Ismagilov, A.V. Kozub, T.V. Ignatova, D.N. Golenkov, E.V. Shelepov, D.O. Sharkovskiy, N.I. Lomaka, and A.V. Chanturiya
By D. N. Golenkov, N. I. Lomaka, A. V. Kozub, T. V. Ignatova, E. V. Shelepov, D. O. Sharkovskiy, A. V. Chanturiya, R. I. Ismagilov
The modern Russian iron ore mining industry is faced with multiple challenges from everincreasing requirements of steel-making, the value of iron ore concentrates, depletion of high-grade ore reserves
Jan 1, 2020
-
Complex ores need comprehensive solutions: Las Tórtolas case study, J.A. Sweet, G.E. Sandoval, T.M. Hauyon, T. Bachmann, and F.A. Contreras
By J. A. Sweet, T. BACHMANN, G. E. Sandoval, T. M. Hauyon, F. A. Contreras
In many respects a porphyry copper ore concentrator plant can be considered as a simple system. Chalcopyrite typically liberates well at relatively coarse sizes, and even low grade ores are amenable t
Jan 1, 2020
-
Microstructural, Mechanical, And Oxidation Property Evolution Of Gamma-TiAl Alloy With Addition Of Precious Metals ? Synopsis (0ae4f2fd-7a1b-44dc-a031-f9b1ef44288c)
By I. A. Mwamba
Titanium aluminide of composition Ti-47.5 at.% Al was prepared by melting titanium and aluminium of commercial purity with additions of precious metals of 0, 0.2, 1, 1.5 and 2 at.% content. The micros
Jan 1, 2012
-
Base metals recovery from zinc hydrometallurgical plant residues by digestion method
By R. B. Ngenda
The ?Kolwezi Zinc Plant?, in French ?Usines à Zinc de Kolwezi? (UZK), has produced about 910 000 dry metric tons of residues during the hydrometallurgical treatment of calcines from sulphide zinc conc
Jan 1, 2009
-
HPGR circuit and overall plant efficiency optimization through addition of crushing and dry cobbing in Jalal Abad iron ore concentrate plant L. Hosseini, R. Hejazi, M. Saghaeian, and M.V. Sheikhzadeh
By M. Saghaeian, R. Hejazi, L. Hosseini, M. V. Sheikhzadeh
HPGR equipment has been well proven to be energy-efficient in the first stage of grinding in iron ore beneficiation plants. Numerous advantages of utilising HPGR grinding prior to ball mill grinding,
Jan 1, 2020
-
The use of seawater in copper hydrometallurgical processing in Chile: A review
By V. Quezada, Á. Astudillo, L. Valásquez, M. Garcia
Seawater has become a viable alternative for different uses in copper hydrometallurgy. In this paper we review the main physical and chemical characteristics of seawater and how these influence copper
Jul 5, 2023
-
The Effect of Particle Size on the Rate and Depth of Moisture Evaporation from Coal Stockpiles
By C. B. Espag de Klerk, J. de Goede, M. Le Roux, Q. P. Campbell
"Excessive amounts of moisture in product coal can influence the efficiency of downstream utilization processes due to a decreased calorific value and handling problems. Stockpiles can be used to decr
Jan 1, 2016
-
Comparing a “low density cut-point” and a conventional spiral in a two-stage circuit on a semi-soft coking coal plant, P. Ramsaywok and G. Legodi
By P. Ramsaywok, G. Legodi
Spiral concentrators are widely used in the coal industry treating fine (-1mm) coal. Their application was a limitation to the product quality until the introduction of low-cut spirals which allow a l
Jan 1, 2020
-
Prediction of Copper Recovery from Geometallurgical Data using D-vine Copulas
By A. Adeli, A. V. Metcalfe, E. Addo, E. Sepulveda
"The accurate modelling of geometallurgical data can significantly improve decision-making and help optimize mining operations. This case study compares models for predicting copper recovery from thre
Mar 1, 2019
-
Process Design Of A Regrind Facility At The Leinster Nickel Operations To Improve Concentrator Recovery (730f9c77-ea3f-4530-b6a8-5498efccd480)
This paper presents the development of a regrind facility design at BHP Billiton's Leinster Nickel Operations (LNO) in Western Australia. The recovery opportunity was identified from an analysis
Jan 1, 2007
-
Enhancing performance metrics of an electrical-powered subsea robotic dredging crawler across varied inclination angles
By A. K. Raji, E. F. Orumwense, M. O. Ojumu
This research paper introduces a novel passive method for ocean mining using an electricpowered robotic subsea dredging crawler designed to operate in various subsea conditions, including unstructured
Oct 2, 2025
-
A Bayesian network approach for geotechnical risk assessment in underground mines
By L. Uotinen, M. Rinne, R. Mishra
Underground mining gives rise to geotechnical hazards. A formal geotechnical risk assessment can help to forecast and mitigate these hazards. Frequentist probability methods can be used when the hazar
Jun 1, 2021