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Membrane Technologies For Gold And Silver Processing Improvements
By Larry A. Lien
Membrane technology has been available for about 30 years, but has been used very sparingly within the general mining industry. However, recent developments in polymer chemistry, spiral wound element
Jan 1, 1998
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Cyanide Conservation: A Path To Maximized Public-Private Benefits
By G. Piegols, J. A. Lombardi
Substantial volumes of cyanide are consumed in precious metals mining due to the purposeful destruction of base metal cyanide complexes and free cyanide to meet surface discharge regulations. This des
Jan 1, 2004
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Oxidation-Precipitation Method to Treat Cyanide Effluents (47624545-3423-4139-b9bb-ca19a5be6837)
By H. Soto, J. Jara, F. Nava, J. B. Hiskey, B. J. Scheiner
Laboratory tests showed that ozone can destroy free cyanide and weakly complexed cyanide (copper and zinc cyanides). The iron cyanide complexes were resilient to ozonation but they were effectively el
Jan 1, 1993
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Gold Gravity Recovery At The Mill Of Les Mines Camchib Inc., Chibougamau, Quebec
By A. LaPlante, A. Cauchon
This gravity circuit at Les Mines Camchib Inc. consists of two pinched sluices to bleed a feed to one of two 76 cm (30") Knelson concentrator. The Knelson concentrate is upgraded to smeltable grade wi
Jan 1, 1990
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Pressure to High-Grade Mines
By Raymond L. Lowrie
Deregulation, as authorized by the Energy Policy Act of 1992 (PL102-486) allows free-market competition in the electric-utility industry. As the act unfolds, though, uncertainties abound about the ty
Jan 1, 1996
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Understanding the Agglomeration Behavior of Nickel Laterite and Gold Ores Using Statistical Design of Experiments
By M. L. Free, N. Dhawan, M. S. Safarzadeh, J. D. Miller, M. S. Moats
"The drum agglomeration of nickel laterite and gold ores has been optimized through the design of experiments (DOE) using a Taguchi L16 (45) orthogonal array to determine the optimum conditions for ma
Jan 1, 2015
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Comparative Real-Time Characterization Of Frother Bubble Thin Films
By M. Gouet-Kaplan, J. A. Finch, S. Gélinas
Methylisobutyl carbinol (MIBC) and methoxy polypropylene glycol (Dowfroth 250) bubble thin films were characterized by composition and thickness determinations, using FT-IR spectroscopy and UV-Visible
Jan 1, 2006
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Measurement Of Weak And Dissociable (Wad) Cyanide With A Modified Potentiometric Titration
By M. Botz
For leach solutions containing primarily free cyanide, the silver nitrate titration method is a rapid and acceptably accurate means of analyzing for cyanide. However, in leach solutions containing ele
Feb 27, 2013
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Biomineralization Of Manganese By Bacillus Spp Isolated From A Marine Biofilm
By H. Sarvamangala
Biomineralization of manganese on titanium condenser material exposed to seawater has been illustrated. Biom-ineralization occurs when the fouling components, namely, the microbes, are able to oxidize
Jan 1, 2008
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Freshly Fractured Silica Exerts Greater Toxicity To Lung Macrophages Than Aged Dust: Organosilane (Prosil 28) Coating Markedly Reduces Dust Toxicity To Cells
By N. S. Dalal, V. Castranova, K. Van Dyke, V. Vallyathan, J. H. Kang
Previously we reported crushing or grinding crystalline silica results in silica-based free radicals on the particulate surface which can generate hydroxyl radicals in aqueous solution (1). Now we fin
Jan 1, 1991
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The Penjom Process
By Gordon V. lewis
The Penjom gold mine treats highly preg-robbing carbonaceous ore by using relatively inexpensive gravity and hydrometallurgical methods. The mine is a joint venture between Avocet Gold Limited, a subs
Jan 1, 2000
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Clay Mineral Encapsulation Of Silica Minerals In Bentonites And Some Other Clays
By I. E. Odom
An electron optical and microprobe study was made to determine the physical and chemical nature of the silica minerals that occur as natural impurities in bentonite and montmorillonitic fuller's
Jan 1, 1998
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Dewatering of Mine Waste Using Geotextile Tubes
By Gökhan Çevikbilen, Ümit Karadoğan, Sevde Korkut, Berrak Teymur
This study proposes a methodology for dewatering of mine waste using a multistage process, combining geotextile tubes and anionic polyacrylamide (PAM), which accelerates the recycling process of water
Sep 29, 2022
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Power Relationships For Tumbling Mills
By R. Hogg
Based on a simplified model for the motion of particulate materials in horizontal, rotating cylinders, approximate expressions have been derived relating the power consumption of a tumbling mill to it
Jan 1, 1971
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GRAVITY CONCENTRATION AT W.M.C.'s ST IVES GOLD MINES
By Barry Cloutt
Western Mining Corporation Limited owns and operates the St Ives Gold Plant located near Kambalda, approximately 90 kilometres south of Kalgoorlie in Western Australia. Production commenced in March 1
Jan 1, 1995
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Industrial Minerals 2004 – Industrial Garnet
By D. W. Olson
Garnet has been used as a gemstone for centuries. However, garnet’s angular fractures, relatively high hardness and specific gravity, being chemically inert and non-toxic and free of crystalline silic
Jan 1, 2005
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Process Alternatives for the Treatment of Gold Tailings
By C. J. Ferron
Gold occurrence in operating plant tailings ranges from gold in solution, fine free gold, gold associated with sulphides/arsenides/tellurides and gold occluded within iron oxides or arsenates and sili
Jan 1, 1993
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Strategic Management by the Diverse Activities of Mining Enterprises
By Marina K. Peshkova, Izabell V. Pomorova
Computer modelling system for definition optimal way of in- vestment under condition of diverse directions of activities mining enterprises has been created. The main purpose of paper is to introduce
Jan 1, 1996
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Color Removal From Excavation Waters
By D. Royston
A novel low-cost technology is described that treats excavation waters in estuarine environments where water coloration due to humic material is present, along with acidity, turbidity, sediment and sa
Jan 1, 2003
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The Influence Of Oxygen Defect States On The Surface Charge Of Alkali Halides
By S. Veeramasuneni
The sign of the surface charge for alkali halides in their saturated brines has been established from non equilibrium electrophoresis measurements and on this basis the flotation response of alkali ha
Jan 1, 1996