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Thermodynamic Analysis Of Gold Leaching By Ammoniacal Thiosulfate Using Eh/Ph And Speciation Diagrams (1b00c1b6-1d3c-49da-aa8d-881dd0b4bd68)
By D. M. Muir
Thiosulfate offers a non-toxic alternative to cyanide for processing gold ores. The mechanism of leaching gold using ammoniacal thiosulfate solution is driven by the Cu(II)-Cu(I) redox couple and is c
Jan 1, 2001
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On the Role of Dixanthogen in Froth Flotation
On the Role of Dixanthogen in Froth Flotation
Sep 13, 2010
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Rubber Liners in the Service of Large Diameter Ball Mill at Hudbay, Constancia Mine, Peru
By Manuel Sanchez, Marcial Medina, Matt Hurley, Hugo Granados, Pramod Kumar, Raj Rajamani, Jose A. Delgadillo
"Large-diameter ball mills have traditionally used steel liners—steel being a highly durable material that can be shaped into any desired geometry, among which the double-wave has been the preferred d
Jan 1, 2017
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Analysis of the Uncertainty by the Random Finite Elements Method of a Vertical Load Test of a Piled Raft Founded in Tropical Soil
By Cristhian C. Mendoza, Renato da Cunha, Bernardo Caicedo, Max Barbosa
"Abstract This paper shows that a raft alone is not sufficiently appropriate to address the uncertainty of underlying soil variability; therefore, a piled raft system is a better option for mitigating
Jan 1, 2014
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Minerals In Man's Future
By Zay Jeffries
From the title of this chapter the reader could expect an attempt to outline the anticipated shape of things to come, mineralwise. We have no crystal ball and if we possessed one we could claim no exp
Jan 1, 1959
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Geochemical types of sulfide ore as indicators of mineral evolution at the hydrothermal vent field Jubileynoye (MAR)
By Anna Sukhanova, Svetlana Babaeva, Sergey Andreev, Victor Beltenev
"The Zenith-Victoria /1/ and Jubileynoye /2/ hydrothermal fields have symmetrical structural position on the Mid Atlantic Ridge (Fig. 1). In order to compare the evolution of hydrothermal systems, we
Sep 1, 2014
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The Next Milestone . . . . . .AccessDirectTM
By Frank G. Wickert
One key to maintaining successful mining operations in today?s global economy is in having the ability to access real-time machine operating data ([1] G. Brown, B. Ebacher, W. Koellner,2000)([2] Broch
May 1, 2002
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Assessing Vertimill Ultrafine Grinding Performance: The Gibraltar Mine Case
By Keith Merriam, Jim McDonnell, Peter Radziszewski, Rob Rotzinger, Ian DeHart
"Taseko Mines Limited Gibraltar copper-molybdenum mine recommenced operation in 2004 with the initiation of a series of development projects to increase throughput capacity as well as modernize the mi
Jan 1, 2015
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Continuous Grouting In Embedding Of Sheet Piles
By Jouko L. Lehtonen
Sheet pile walls can be sealed watertightly using various methods. The objective of this paper is to introduce a new innovation comprising the use of continuous cement grouting during embedding. The m
Jan 1, 2006
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Stress And Deformation Of Pile Foundation Of Sutong Bridge
By Yin Zongze
The pile foundation of Sutong bridge pylons is an extra large pile foundation. The length of piles is 115m, and the diameter of the piles is 2.5-2.8m. Since the traditional design method may not deter
Jan 1, 2006
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Vendors Show Off Latest in Mining Technology at SME Exhibit
By Georgene Renner, William R. Yernberg, Steve Kral
ABB offers complete electrical revamps of mining shovels with ac or dc drives, drive control, frequency converters with insular gate bi-polar transistor technology, intelligent control packages and vi
Jan 1, 2005
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Barrick Goldstrike Grinding Expert System
By Steve Custer, Tim Kahl, Sue Parker
"The primary objective of the Barrick Goldstrike expert system is to achieve the desired liberation size for the autoclave circuit while maximizing throughput. In addition, when downstream limitations
Jan 1, 2001
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Necessity Driving Change and Improvement to the Cleaner Circuit at Lumwana Copper Concentrator
By G. Cordingley, A. Mwanza
Lumwana is an open pit Copper mine located in the Northwestern Province of Zambia approximately 80 km west from the provincial capital of Solwezi, approximately 300 km northwest from the Copperbelt an
Jan 1, 2014
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The Future of Sustainability
By Bruce Conard
For many years, Bruce Conard has been engaged in reading about and discussing the desired sustainability of the mining and metals resource industry. He has, however, become concerned that there is a g
Jan 1, 2014
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Ferrochrome Smelting And Smelting Capacity Investment In Zimbabwe
By J. Chirasha
Keywords: Pyrometallurgy, ferrochrome, smelting, investment, Zimbabwe Four smelting plants currently make up the ferrochrome smelting capacity in Zimbabwe. Zimbabwe Alloys and Zimasco represent m
Jan 1, 2011
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Adjusted Real Option Valuation to Maximise Mining Project Value - A Case Study Using Century Mine
By M Nehring, E Topal
Nowadays mining projects are seeking new versions of evaluation that are based on the flexibility in the project. Real option valuation (ROV) is one of the modern evaluation methods that provides a to
Jan 1, 2009
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Minimole: Development And Field Testing Of A Narrow-Vein Hard Rock Mechanical Mining Machine
By E. Jackson
This paper describes highlights of the Placer Dome MiniMole project - the development and testing of a robotic machine for mining narrow ore veins. A prototype hydraulically controlled robotic machin
Jan 1, 2007
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Settlement Of Tall Buildings Supported On Deep Foundations In Southeast Florida, USA
By Rudolph P. Frizzi
This paper presents different deep foundation systems and associated settlement records for high-rise building projects in the coastal areas of southeastern Florida. An introduction to the sedimentary
Jan 1, 2003
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Mine Development Modeling at Mina Santa Rosa in Panama
By M. D. Johnson
Mina Santa Rosa, in west central Panama, is the first large-scale gold mine in Panama and will soon be the largest single-mine gold producer in central America (Fig. 1). At full production, the mine
Jan 1, 1996
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RI 3322 Progress Reports - Metallurgical Division ? 13. Electrometallurgical Investigations ? Foreword
By J. Koster
In the western United States occurs deposits of low-grade chromite which, when concentrated, may be reduced to ferrochromiun in electric furnaces that derive energy from dams and hydro plants now in c
Jan 1, 1936