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Removal of Arsenic in Enargite from Copper Ores by Flotation and Leaching in NaHS Media
Removal of Arsenic in Enargite from Copper Ores by Flotation and Leaching in NaHS Media
Sep 13, 2010
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Tunneling Toronto Canada 1970
By G. F. Jenkins, P. S. Hobden
Toronto as a geographical area provides an exceptionally wide variety of subsoil stratiphication. Tunneling consequently required a very wide range of adaptabilities to meet its changing conditions. T
Jan 1, 1997
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The Candelaria Concentrator Expansion Project
By D. L. Ogonowski, J. O. Marsden
The Candelaria copper-gold mine is located approximately 25 km south and east of Copiapo in Region III, Chile. The original concentrator was designed to treat 28,000 t/d (30,800 stpd) of chalcopyrite
Jan 1, 1999
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OFR-100(3)-77 Design And Development Of A Machine Familiarization Trainer For Dragline Operators - Phase II Report
By Peter Murphy
This report (arid related appendices) provides a description of the functional design specifications, engineering design specifications, and program of instruction for development of a training system
Jan 1, 1976
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Role Of Gas Pressure In Underground Coal Mine Bursts And Bump
Face and pillar bursts, bumps and bounces are violent failures that occur in underground coal mines in response to a complicated interplay of face and pillar geometry, seam depth, coal properties and
Feb 27, 2013
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Global Approach to Managing Deep Mining Hazards
A series of fault slip seismic events have occurred at Garson mine. The events have occurred during development advancement exposing faults, after the extraction of single stopes due to mining induced
May 1, 2009
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Rock Cutting By Jets: A Promising Method Of Oil Well Drilling ? Introduction
By R. Feenstra
In the course of time, an increasing number of investigations on jet cutting all kinds of material, such as rocks1, 2, 3, metals4, 5, and wood6 have been reported to serve various applications. This p
Jan 1, 1974
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The Mineral Industry Of Other East African Countries - Burundi (c77845b7-c701-471e-a72b-f4781ee6c9c7)
By Kevin Connor
There was little change during 1988 in the production of minerals in Burundi. The Government of Burundi, which banned all commercial mining operations in the country in 1979, lifted the ban on mining
Jan 1, 1985
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Statnamic Load Testing; Overview And Case Histories Of Augered Cast-In-Place Piles
By Mike Muchard
Augered cast-in-place piles are one of the most cost effective deep foundation options available to designers but have been largely underutilized due to skepticism associated with quality assurance an
Jan 1, 2000
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Business Benefits Of An Integrated CFA Rig Instrumentation System
By Jason N. Scott
CFA piling is a ?blind? construction process that relies heavily on the rig instrumentation to produce sound piles. If the data measured and recorded during construction can be made available to engi
Jan 1, 2006
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Phelps Dodge, Caterpillar Use Technology to Lower Costs
By Steve Kral
For the past several years, copper producers have faced a tough business climate. Nagging low prices forced many them to reduce their production and make other drastic cutbacks just to breakeven. An
Jan 1, 2004
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Placer-Mining Methods And Costs In Alaska - Introduction
By Norman L. Wimmler
Active placer mining in Alaska began near Juneau in 1880, but the first gold rush did not start until 1896; then the discovery of the Klondike brought gold seekers from all parts of the world. A few o
Jan 1, 1927
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Geochemistry of ilmenite and applications to ilmenite provenance and Ti-mineral exploration
By Antonio Pineda, Roger K. McLimans, Felicity E. Lloyd
lmenite is a primary ore feed to the DuPont chloride process for the manufacture of titanium diox-ide pigment. We seek to determine ilmenite geochemistry as a function of original source and as-certai
Jan 1, 2005
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Wall-flow type diesel particulate filter system to replace existing wet element filter systems used in typical LHDs in underground coal operations
By N Coplin
Australian Coal Association Research Program (ACARP) project C25073 was proposed by industry stakeholders seeking a potential solution that improves underground air quality and reduces operational cos
Aug 28, 2017
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Evolución del método de minado de mina Chupa Unidad Minera Iscaycruz
By José Cuadros
"El presente trabajo señala el proceso de evolución del método de minado en la mina Chupa, perteneciente a la unidad minera de Iscaycruz. La evolución del método de minado se determinó por la búsqued
Jul 31, 2003
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The Effect Of Graphite Properties On The Rate Of MnO Reduction From High Carbon Ferromanganese Slag
By G. Tranell, L. Kolbeinsen, S. Gaal, J. Safarian
The effect of carbon material properties on the rate of MnO reduction from ferromanganese slag by solid graphite was investigated. A sessile drop technique was used to study the reduction rate of a sy
Jan 1, 2007
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Investigating the Potential of Hydrofloattm Coarse Particle Flotation Techniques on Copper Sulphide Ores
By P. J. Mehrfert
"Recovery of mineralized coarse particles is notoriously low in conventional concentrators that treat copper porphyry ores. The application of coarse particle flotation techniques has the potential to
Jan 1, 2017
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RI 3844 Performance of a Hydraulic Classifier Designed to Incorporate Four Hitherto Neglected Principles
By Will H. Coghill, I. L. Feld, G. D. Coe
The object of this paper . is to make known the superior classification accomplished in a hydraulic classifier designed to make use of principles determined by recent research ... The details of the d
Dec 1, 1945
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Cost value of High-angle conveying – 2011
By Joseph A. Dos Santos
"The subject of this writing was first published in 1998 with the emphasis on the hardware cost comparison. Other costs, such as the required land area and spatial volume, were mentioned but not empha
Sep 1, 2016
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In Situ Rehabilitation of Concentrate Tailings at Macraes Mine: A Contingency Option
By D Craw, D Wilson, D Chappell
Gold is extracted by cyanidation of a sulphide-rich concentrate at Macraes mine, and after cyanidation, the concentrate is discharged to tailings impoundments. The concentrate tailings were discharged
Jan 1, 1998