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Effect of Redox Conditions and Copper Ions on Pyrite Depression by Sodium Metabisulfite and Sodium Sulfite in Seawater
By S. Castro, L. Gutiérrez, L. Uribe
"Use of lime in seawater as a pyrite depressant decreases Mo recovery in flotation of Cu- Mo sulfide ores. When technology that uses sodium metabisulfite (MBS) to depress pyrite is applied, the proces
Jan 1, 2017
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St. Andrew Goldfields
By P. Massi
"Wholly owned by the Coniagas Mining Company, the oldest continuously listed mining company on the Toronto Stock Exchange, St. Andrew Goldfields is located on Hwy. 101 approximately 30 miles east of d
Jan 1, 1992
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Dorr-Oliver Application Driven Design of Flotation Cells
By Kallioinen Jouko
"Advanced Flotation Technology is the application driven design of Don-Oliver flotation cells to achieve the optimum performance for each type and grind of flotation. Optimum performance is the combin
Jan 1, 2000
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High Pressure Grinding Rolls (HPGR) - In Comparison to SAG Milling Technology
By Hassan Ghaffari
? HPGR Process/Overview ? HPGR vs. SAG ? The Manufacturers ? Mine Operations using HPGR ? Projects by Wardrop/Tetra Tech ? Economic Benefits ? Questions Main Operating Parameters ? Press Force
Aug 1, 2013
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100 Years of Blowing Bubbles for Profit
By Jan E. Nesset
It is just over 100 years since the practice of blowing small bubbles into a mixture of ground ore and water revolutionized the mining industry, resulting in uneconomic deposits becoming highlyprofita
Jan 1, 2009
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Where Did that Earbud Come From? Current Rare Earth Production Facilities
By J. R. Goode
Rare earth elements (REE) and their compounds are critical ingredients in numerous necessities of modern life including: the permanent magnets used in electric motors, generators, speaker and hard dri
Jan 1, 2016
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Was that Locked Cycle Test Any Good?
By Mike Ounpuu
"Locked cycle testing has become more common practice in the last 10 years. Reasons vary from a desire to avoid pilot plant testing, demand for more variability testing within deposits, and perhaps mo
Jan 1, 2001
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Optimization of the Xstrata Copper-Horne Smelter Operation Using Discrete Event Simulation
By J. M. Simard, S. Morissette, P. Coursol, P. Mackey
A new, powerful model is presented that focuses on plant logistics and scheduling aspects of the smelting, converting, fire refining and casting operations at the Horne smelter. This plant complex is
Jan 1, 2009
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Economic Optimisation of Pb-Zn Concentrates By Regrinding and Cyanidation of Silver from Zinc Concentrate
By Carlos Avalos Casillas, Saul Ortiz Landeros
The current work shows metallurgical results obtained at the Centro de Investigación y Desarrollo Tecnológico (Peñoles CIDT), as a continuation of the work first published in February 2012. With the a
Jan 1, 2014
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Computer process control for the Kudremukh Iron Ore Company Limited
By V. Balakrishnan, A. Hewitson
"The Kudremukh Iron Ore Company Limited, a government of India enterprise, has constructed iron ore mining, crushing, handling and concentrator facilities at Kudremukh, in southwest India. Concentrate
Jan 1, 1984
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The Finch-McIvor Functional Performance Based Grinding Circuit Modeling System
By James A. Finch, Robert E. McIvor
"This paper presents the development of a new grinding circuit steady-state modeling system. It is fundamentally based on the “functional performance equation”, which has now been used to improve the
Jan 1, 2007
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Root-Cause Analysis of the Lacy Copper Phenomenon
By R. Ramírez, N. Aslin, G. Ríos, T. Bravo, A. R. Almansa
Lacy copper has been an on-going concern at Atlantic Copper for at least 10 years and was first reported to Glencore Technology in mid-2010. Over the past 12 years, many of the plates were replaced du
Jan 1, 2019
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Iron Behavior in Nickel Laterite Inverse Leaching Process
By L. Su, S. Liu, K. Jiang, K. Xie
The reduction of iron dissolution and acid consumption is fairly important in the extraction of Ni and Co from laterite ores from both economic and efficiency perspectives. BGRIMM conducted detailed r
Jan 1, 2016
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SPOC Project Software and Manual
By R. F. Pilgrim
"This first chapter of the SPOC Manual 1s intended as a general introduction to all the other chapters in which the mineral process evaluation and optimization methodology is presented. This chapter a
Jan 1, 1986
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Simulation of a dragline operation in all eastern Kentucky mine
By R. V. Ramani
"A computer simulation model of a dragline has beer developed for the study of alternative dragline deployment schemes for varying geological and mining conditions. In this paper, the mathematical asp
Jan 1, 1985
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Evaluation of the Kelsey Centrifugal Jig at Rio Kemptville Tin
By H. Wyslouzil
"The Kelsey Centrifugal Jig is a gravity separation device which utilizes the principles of the conventional mineral jigs but with the additional feature of being able to vary the apparent gravitation
Jan 1, 1990
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The application of digital video plotter (DVP) systems to the location and orientation of open pit wall slope features
By S. Klingmann, G. Blackwell
"Terrestrial photogrammetry has been used for many years to build three-dimensional pictures for analytical purposes. Photographs can include images from open pit mine walls, ground topography, mine b
Jan 1, 2003
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Geostatistical resource estimation for the Poura narrow-vein gold deposit (4178b3ee-8316-4d7e-a069-b76cea76f353)
By P. K. Frempong, S. D. Butt
"A case study for the application of a novel geostatistical technique for resource estimation of a narrow steeply dipping, gold-silver mineralized quartz vein deposit is presented. The technique is no
Jan 1, 2004
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Geostatistical resource estimation for the Poura narrow-vein gold deposit
A case study for the application of a novel geostatistical technique for resource estimation of a narrow steeply dipping, gold-silver mineralized quartz vein deposit is presented. The technique is nov
Feb 1, 2004
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Nanoparticle Flotation Aids for Pentlandite Fines
By Manqiu Xu, Songtao Yang, Zongfu Dai, Robert Pelton, Carla Abarca
"Fine mineral particles are difficult to process by flotation because of their low collision efficiencies with air bubbles. Decreasing air bubble size and increasing mineral particle size through floc
Jan 1, 2015