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A Simple Estimation Method of Materials Handling Specific Energy Consumption in HPGR Circuits
By A. G. Doll
"Multi-stage crushing plants, including high pressure grinding roll (HPGR) circuits, require more materials handling equipment than SAG and ball mill circuits. A temptation exists to neglect the energ
Jan 1, 2015
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Arsenic Sulfide Oxidation At Acid pH Values (2002 SME Annual Meeting Feb. 25 - 27, Phoenix, Arizona)
By R. N. Tempel, M. Lengke
Arsenic sulfide [orpiment, realgar, amorphous AsS and As2S3] oxidation rates were measured in mixed flow reactors at pH~2 and temperature of 25-30oC. The measured oxidation rates for arsenic sulfide s
Jan 1, 2002
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RI 6054 Performance Of Tables In Cleaning Alaska Coals ? Introduction And Summary
By M. R. Geer
Information on the performance of coal-cleaning equipment is necessary to provide a basis for evaluating the performance of existing plants and projecting that of new plants. Performance data can cont
Jan 1, 1962
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In Memoriam (dc0b46dd-9cb1-4690-b9f2-613d55cf21c5)
CAPTAIN JOHN H. BALLAMY John H. Ballamy, Captain on the Regimental Staff of the 103d Engineers, was killed near Fismes, on August 9, 1918. Captain Ballamy was born at Plymouth, Pa., in 1886 and gra
Jan 11, 1918
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Silicomanganese Production - Process Understanding
By S. E. Olsen, M. Tangstad
The main source of Mn in raw materials for SiMn production is Mn-ore and Mn-rich slag from the high carbon FeMn production. The amount of slag per tonne of SiMn metal is mainly determined by the ore/s
Jan 1, 2004
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The REP experiment at the Bure underground research laboratory: objectives, programme and design
By A. Thoraval, K. B. Slimane, O. Ozanam
The REP experiment is part of the research programme conducted by Andra to investigate the possibility of reversible radwaste disposal in a Jurassic (Callovo-Oxfordian) argillite formation at the Meus
Jan 1, 2003
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Case Studies on Circuit Design Using Flotation Columns
By Glenn S. Dobby, Glenn A. Kosick
"Column flotation circuit engineering has matured to a good level of understanding regarding testing, scale-up and design. Some of the factors important to the process of implementing columns are addr
Jan 1, 1995
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Understanding the Hazard Potentials of Toxic Fumes
By Michael S. Wieland
Toxic fumes cause fatal and nonfatal incidents in underground mining, where the working environment tends to trap the fumes, hindering the restoration of nonharmful conditions. Workers can underestima
Jan 1, 1998
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Pyrrhotite ù An Important Gangue and a Source for Environmental Pollution
By W T. Yen
Pyrrhotite crystallises as either a hexagonal or monoclinic structure, both of which can occur in ore deposits. In general, pyrrhotite is not considered as a valuable mineral unless it contains consid
Jan 1, 2002
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Kinetic Dependence of Refractory Gold Sulfide Biooxidation Using Different Microorganism Association
Kinetic Dependence of Refractory Gold Sulfide Biooxidation Using Different Microorganism Association In this investigation, refractory sulfide concentrate from a deposit located in northern Russia wa
Sep 13, 2010
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RI 4700 Data On Pumping At The Anthracite Mines Of Pennsylvania
By S. H. Ash
The Pennsylvania anthracite region is composed of four fields, namely, the Northern, Eastern Middle, Western Middle, and Southern. It is in the eastern part of Pennsylvania and is shown on figure 1.
Jan 1, 1950
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IC 7269 Marketing Magnesite And Allied Products ? Introduction
By Charles L. Harness
Magnesia (MgO) has a variety of uses, and it has become increasingly important as a war material because of the imperative demand for refractories to line metallurgical furnaces, and because magnesia
Jan 1, 1943
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Deep Soil Mixed Wall And Jet Grouting For An Excavation Support System At The Museum Of Fine Arts In Boston, Massachusetts
By Harry Schnabel
A 6200 m² cement deep soil mixed (CDSM) wall was constructed for an addition to the Museum of Fine Arts in Boston, Massachusetts. The addition was located along the east side of the existing museum wi
Jan 1, 2011
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Science And Technology Education And The New South African School Curriculum
By R. L. Gibson
Manpower competencies in the mining, minerals processing and energy industries in South Africa into the next century will, to a large extent, derive from the nature and quality of the teaching which p
Jan 1, 1997
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Waterproofing of a Subsea Tunnel with a Unique Sprayable Membrane— The Nordöy Road Tunnel, Faroe Islands
By Sigurd L. Lamhauge, Karl Gunnar Holter, Svein E. Kristiansen
An innovative sprayable waterproofing membrane in combination with the traditional Nordic method of waterproofing with polyethylene foam sheets was used for the waterproofing of the tunnel. The spraya
Jan 1, 2007
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Improving Fluorine-Bearing Minerals Rejection in the Flotation of a Brazilian Sulphide Copper Ore
By Keila Gonçalves, Aline Tavares, Danielly Couto
"The sulphide copper deposits from the Carajás area (North region of Brazil) were generated by the percolation of hydrothermal fluids in volcanic and granitic rock and are denominated as IOCG deposits
Jan 1, 2011
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Statistical Thermodynamic Approach to Chain Polymers in Binary Silicate Melts
By Mehrotra G. M, Frohberg M. G
Based on the concepts of statistical thermodynamics of athermal mixtures, an approach is developed which is capable of quantitatively explaining the thermodynamic properties of binary silicate systems
Jan 1, 1975
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Some Aspects of the Oxidation of Sulphide Minerals in Aqueous Suspension
The oxidation of sulphide minerals in aqueous suspension is discussed from several viewpoints. Limitations of our present knowledge are pointed out, and several points where further information would
Jan 1, 1961
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Competencies: Engineers As Managers - An Australian Case Study - Introduction
By R. Thomason
Thank you Dr Barcza, President of the South African Institute of Mining and Metallurgy, for inviting me to share our experiences in Australia as regards the competency movement and my Association?s ex
Jan 1, 1997
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The Geological Setting, Mineralogy, and Paragenesis of Gold-Bearing Polymetallic (Cu+Co+Ag+Au+Bi±Pb±Ni±U) Veins of the Merico-Ethel Property, Elk Lake, Northeastern Ontario, Canada
By I. Campbell, P. C. Jones, E. G. Potter, R. P. Taylor
"The Cobalt embayment is a large domain of Paleoproterozoic clastic sedimentary rocks that unconformably overlies the Archean Abitibi greenstone belt. Regionally extensive sills and dikes of Nipissing
Jan 1, 2009