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Galena Flotation with Metabisulphite: Solutions to Problems from Xanthate Sulphoxy Ion Reactions
By Johnson N. W
After an unsuccessful transfer from the laboratory to the pilot plant of galena flotation technology which used sodium metabisulphite and ethyl xanthate, laboratory flotation tests were conducted to i
Jan 1, 1988
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Desarrollo De Toberas De Cohete En Material Ablativo De Matriz Polimérica Reforzada Estructuralmente Con Fibras De Vidrio Y Carbono
By Jorge Maldonado Villa
Se desarrollaron materiales compuestos de matriz polimérica para toberas en cohetes; con dos zonas: una térmica para soportar elevadas temperaturas de combustión y una estructural que resista los esfu
Aug 17, 2017
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Evaluación multicriterial optimizada (Modelo IMCA) para ayudar a alcanzar una gestión sostenible: Un caso de estudio en la actividad minera peruana
By Julio G. Poterico
La minería es una actividad económica de desarrollo sostenible que requiere de una adecuada gestión para garantizar el funcionamiento de los proyectos. En ese sentido, el presente trabajo describe el
Jul 1, 2012
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Energy efficiency in the industry: A step to increase productivity
By Elizabeth Cruz
The paper point out innovative energy management techniques that lead to energy recovery and uses it back in the process as heat, mechanical work or power with a consequent impact on operating cost
Sep 14, 2009
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Net Present Value Maximization Model For Optimum Cut-Off Grade Policy Of Open Pit Mining Operations ? Synopsis
The optimum cut-off grade policy maximizes the net present value (NPV) of an open pit mining operation subject to the mining, processing, and refining capacity constraints. The traditional approaches
Jan 1, 2011
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Pulsating High-Gradient Magnetic Separation Of Fine Hematite From Tailings
By Luzheng Chen
Pulsating high-gradient magnetic separation (PHGMS) of fine hematite from tailings was studied using a pilot PHGMS separator to investigate the possibility of its application in industry. The results
Jan 1, 2009
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Broken Hill Vughs-Occurrence and Some Probable Causes
Although these subterranean cavities are common to the Broken Hill big lode, yet the Broken Hill Proprietary is the most prolific in their occurrence, loud they have been found of various dimensions a
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Cedazos DSM. Su operación en la Concentradora Paragsha
By Elmer Peña Matta
Un estudio anterior sobre la mena Pb. Zn en la concentradora de Paragsha determinó que los finos encontrados en la alimentación de los molinos, se podía separar, evitando la remolienda y la alimentaci
Jul 20, 1960
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The Dirt on Mining Information
By Michael W. Russnak
Productivity and operating expenses are everything when it comes to judging how well your mine and company are doing. Stakeholders are always looking at these numbers and trying to understand if produ
May 1, 2007
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Risk Indexing Tool for Mine Planning
By W. Abdellah
The purpose of this paper is to establish a qualitative method to estimate the risk level (e.g. rating and ranking) resulting from mining activity. Risk is the product of two factors: probability of f
Jan 1, 2014
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OFR-34-79 Automatic Fire Sensing And Suppression Systems For Mobile Mining Equipment
By Ralph B. Stevens
The objective of the Automatic Fire Sensing and Suppression Systems for Mobile Mining Equipment program is to document the design, fabrication, factory testing, 11-month in-mine testing, and final dem
Jan 1, 1978
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Factor humano y organizacional en la seguridad
By Alberto Pacheco
El presente trabajo es un análisis del sistema de organización del sistema de seguridad a través del modelo Reason de causalidad o de "queso suizo", donde se identifica qué aspectos y decisiones se c
Sep 13, 2001
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Back Injury Control Measures For Manual Lifting And Seat Design
By S. Gallagher, A. G. Mayton
Back injuries account for a high proportion of lost workdays in the mining industry and are a leading cause of disability in mine workers. Two risk factors for low back injuries are manual lifting and
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Physical and numerical modelling of a four-strand steelmaking tundish using flow analysis of different configurations (0c3edd99-7ca7-481d-91c3-d7b7b8a277a8)
By J. H. Cloete, S. M. Bradshaw, D. K. Chibwe
"Modern tundishes have evolved as vessels to serve as the final step in refining of molten steel by removing inclusions and promoting thermochemical homogeneity.In this study the flow behaviour in a f
Jan 1, 2015
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Timbering and its Importance in Making Estimates of Cost
The importance of timbering, not only from a financial point of view but from an actual mining point of view, is so often overlooked or slightly glossed over by the average expert and investor, that I
Jan 1, 1901
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New Blasting Techniques to Eliminate Subgrade Drilling, Improve Fragmentation, Reduce Explosive Consumption and Lower Ground Vibrations
By R. Frank Chiappetta
A new blasting technique has been developed by International Technologies, LLC. to eliminate subgrade drilling, lower ground vibrations, improve fragmentation and reduce explosive consumption. The new
Jan 1, 2004
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A Novel Approach To The Performance Evaluation Of Driven Prestressed Concrete Piles And Bored Cast-In-Place Piles
By Sridhar Krishnan
This paper presents the results of a comprehensive pre-production pile testing programme for the US$ 800 million 1400MW Coal-Fired Jimah Power Plant Project in Negeri Sembilan, Malaysia. The testing p
Jan 1, 2006
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Trends In Deep Foundations In Europe ? Synopsis
By R. Stenne
This paper presents the trends in deep foundations in Europe, both in terms of design and construction. Eurocode 7 which is a design code for geotechnical engineering will be introduced in the Eur
Jan 1, 2000
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Rehabilitation of a Brick-Lined Aqueduct
By Taehong Kim, Carl Pannuti, Nikolas Sokol, Walter Herrick
BACKGROUND This paper discusses work performed as part the rehabilitation of the gravity flow section of the New Croton Aqueduct (NCA) during an approximately two year period between 2004 and 2006
Jan 1, 2007
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Presidential Address, 1955
The first mention of gold in Western Australia was in 1848 when some specimens of copper ore, which are believed to have come from the Murchison district, were sent to Adelaide for assay. Gold was pre
Jan 1, 1956