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  • IMPC
    Development of a froth model to assess the mass transport of particles reported to the concentrate

    By Paula Olea, Gonzalo Montes-Atenas

    Froth flotation operation is a large tonnage process aiming at selectively separate economically valuable minerals from gangue material. The wellbeing of an industrial froth flotation operation has be

    Jan 1, 2014

  • IMPC
    Environmental impact assessment of mining projects in Chile: A review

    By Verónica Fernández, Jaime Solari

    "The Chilean Environmental Impact Assessment System (EIAS) of investment projects was created in 1994, date in which the General Environmental Law was enacted. The compulsory environmental approval of

    Jan 1, 2014

  • IMPC
    Computer-Controlled Hydrocyclone Battery with Maximum Solids Recovery (ABSTRACT PAGE)

    By M. Schneider, J. Regler, Th. Neesse, AKW A. + V GmbH & Co., J. Dueck, F. Donhauser

    "In practice the advantages of high-quality hydrocyclone separation are often reduced due to varying feed suspension properties, solids concentrations and particle size distributions. Therefore, a new

    Jan 1, 2003

  • IMPC
    The optimization of copper-bearing slag flotation using a sulfidation stage at El Soldado mine site

    By Francisco Vicuña, Miguel Becerra, Gonzalo Montes-Atenas

    "The optimization of the copper recovery from smelting slag by a process of comminution / flotation has been a widely discussed topic during the last few decades. Several studies covering the characte

    Jan 1, 2014

  • IMPC
    Flotation In A Fluidized Bed ? A New Paradigm For Flotation

    By Graeme J. Jameson

    In conventional flotation machines, the recovery is strongly related to particle size. As particle size increases, the recovery also increases, reaching a maximum in the range 20 to 120µm. Beyond this

    Sep 1, 2012

  • IMPC
    Design of a cellular automaton to determine the particle size distribution exiting a SAG mill

    By Rodrigo Ladrón, Gonzalo Rund, Gonzalo Montes-Atenas

    Modelling ore comminution processes have been a highly fruitful scientific topic. The models have been proved to be largely dependent on the selected comminution technology. Among them, semiautogenous

    Jan 1, 2014

  • IMPC
    Towards the use of X-ray photoelectron spectroscopy data as a metallurgical tool in froth flotation

    By Nicolás Luis, Qi Liu, Gonzalo Montes-Atenas

    "The prediction of froth flotation performance is still an unresolved topic. Classic industrial models based on particle size, elemental and mineralogical information provides recovery results with de

    Jan 1, 2014

  • IMPC
    Leaching of sulfide ores: Will it ever replace the flotation-smelting route?

    By Tomás Vargas

    Treatment of copper sulphides minerals via leaching-solvent extraction-electrowining (lix-sx-ew) have been for years the process scheme proposed from hydrometallurgy as an alternative to the conventio

    Jan 1, 2014

  • IMPC
    Mechanisms of Thiobacillus Ferrooxidans Depressing the Floatability of Pyrite (ABSTRACT PAGE)

    By Yimin Zhu, Dezhou Wei, Haijun Liang, Zhifu Zhou

    Pyrite is one of sulfide minerals most widely distributed in the earth. During the flotating separation of metal sulfide and the floating desulfation of coal, it is often requaired to restrain pyrite.

    Jan 1, 2003

  • IMPC
    The Influence of Lead Additions to an Alkaline Aqueous Cyanide Solution on the Anodic Behaviour of Gold

    By Heinrich Hutchison, Thomas von Moltke, Roelof F. Sandenbergh, Katarina P. Cerovic

    Although the cyanidation process for gold leaching has been applied for more than a hundred years, some aspects of it, such as the passivation of the gold and the depassivating action of heavy metals,

    Jan 1, 2003

  • IMPC
    Effect of temperature gradients in column leach experiments

    By Sebastian Fredes, Williams Calderon, Mauricio Toledo, Gonzalo Montes-Atenas

    The influence of the temperature on leaching kinetics of copper-bearing minerals has been widely acknowledged: the leaching of copper oxide ores is generally described as exothermic reactions while co

    Jan 1, 2014

  • IMPC
    Modeling the impact of the dissolved oxygen on froth flotation performance

    By Daniela Campos, Aldo Casali, Gonzalo Montes-Atenas

    The understanding of the effect of the major variables influencing the froth flotation performance may allow both to predict and to identify best operating conditions towards optimizing the process ef

    Jan 1, 2014

  • IMPC
    Modeling the effect of the presence of seawater on the phenomena occurring in ball mills operations

    By Marianella Perez, Williams Calderón, Gonzalo Montes-Atenas

    The lack of fresh water sources, particularly in the Northern part of Chile, has driven the mine sites to search for new and sustainable paths to obtain water resources to run minerals processing oper

    Jan 1, 2014

  • IMPC
    Impact of seawater dilution on copper extraction via acid leaching

    By Ricardo Duque-Soto, Gonzalo Montes-Atenas

    The depletion of water resources has posed an enormous challenge to the continuity of many mine sites, particularly those located in arid zones worldwide. In Chile, the use of seawater has been forese

    Jan 1, 2014

  • IMPC
    The Use of Optical Sorting Devices in Mineral Processing

    By Hermann Wotruba, Günther Petzold, Fabian Riedel

    "Increased mechanisation in underground stoping operations results in higher waste percentages in the run of mine. A new method of reducing waste is optical sorting. Optical sorters have low maintenan

    Jan 1, 2003