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  • IMPC
    Comperative experimental study of two grinding media

    By Kremena Dedelyanova, Tsvetan Damyanov, Nikolay Hristov, Evgeni Kostadinov, Lubomir Kuzev

    "Spherical grinding media (balls) are the most widely used media for comminution of ores by grinding. One way to optimize the grinding process in a tumbling mill is associated with the development and

    Jan 1, 2014

  • IMPC
    Preparation ZnO Nanoparticles Using Blendes as Raw Material

    By W. Z. Yin

    It is investigated systemically in this paper that the granularity of the precursor, ZnC2O4?2H2O, is influenced by synthetic conditions. Instantaneously adding of precipitation agent is able to contro

    Jan 1, 2014

  • IMPC
    On Bubble-Particle Detachment Mechanisms in Coarse Particle Flotation

    By S. Mitra1

    "This study aims to investigate coarse particle detachment mechanisms (particle diameter > 150 ?m) utilising both experimental and numerical technique. Two mechanisms were studied – (i) interactions o

    Jan 1, 2018

  • IMPC
    Development and Applications of HermesTM Metal Magnetic Liner

    By L. S. Zhou

    HermesTM metal magnetic liner (MML) has been invented and manufactured by China Metallurgy and Mining General Co. (CMMC). This paper describes its mechanism, structure, magnetic field distribution, ap

    Jan 1, 2014

  • IMPC
    Fine Particles Separation through Hydrophobic Agglomeration. Application on the System Magnesite/Quartz

    By N. Tsoni

    The separation and recovery of fine and ultra-fine particles during the processing of mineral commodities by conventional separation methods is difficult and inefficient. This is due to the problems p

    Jan 1, 2014

  • IMPC
    Physical Property Changes of Fe-Ti Oxides along Their Alteration: A Geometallurgical Study to Improve the Yield of a Mineralurgical Plant

    By T. Wallmach, S. B. Blancher, A. Delaporte, P. Goncalves

    "Fe-Ti oxides concentrates produced from heavy mineral sand deposits are widely used for the production of titanium dioxide pigments that are critical components of white paint, plastics and paper. Ac

    Jan 1, 2018

  • IMPC
    Application of Electrical Disintegration to Coal

    By Shuji Owada, Mayumi Ito, Takehiko Nishimura, Toru Yamashita, Sadayuki Shinozaki, Takashi Ando, Tomoe Ota

    Electrical disintegration (ED) was applied to Nantun coal (China) in order to improve liberation of coal substance for the pretreatment of producing “Hyper Coal” of which the combustion gas was planni

    Jan 1, 2003

  • IMPC
    Visualization of the Process of Raw Materials Separation in the Separator with Ferromagnetic Liquid

    By W. Pawlos

    "The paper will present the methods of visual observation and recording of movement paths of coal grains of different physical properties in the paramagnetic liquid. The paths were recorded with a vid

    Jan 1, 2003

  • IMPC
    The Economic And Environmental Case For Recovering Cyanide From Gold Plant Tailings

    By Chris A. Fleming

    "The ability to recover cyanide from gold plant tailings has been known almost as long as the cyanidation process has been practiced, but there has been little incentive to process tailings in this wa

    Jan 1, 2003

  • IMPC
    The Study on Metal Cyanide Complexes Adsorption onto Activated Carbon

    By A. V. Byvaltsev

    Adsorption of cyanide complexes of gold, silver, copper, mercury, nickel, cobalt, iron, zinc and cadmium has been studied. Adsorption isotherms of the mentioned metals from individual solutions for di

    Jan 1, 2014

  • IMPC
    Studies on Phanerochaete Chrysosporium by Ultraviolet Ray and Biodegradation of Lignite

    By J. Y. Xu

    A mutant of Phanerochaete chrysosporium, which is capable of degrading lignin, was bred by ul-traviolet ray irradiation and this mutant strain shows high capability of degrading of lignite. The degrad

    Jan 1, 2014

  • IMPC
    Process Mineralogy and Its Application to PGM Recovery from Low-grade Cu-Ni Sulfide Ore

    Deposit of Jinbaoshan platinum group metals (PGMs) ore ranks the second in Yunnan province, China. Study on process mineralogy shows that the grade of copper and nickel in the ore is just 0.16% and 0.

    Jan 1, 2014

  • IMPC
    Small Hydrocyclones for Classiffication of Particles in the Micron Range

    By D. Vega, P. R. Brito-Parada

    "Small diameter (10 mm) hydrocyclones have been applied successfully for the separation of particle suspensions in the micron size range. These hydrocyclones are attractive because they show a bypass

    Jan 1, 2018

  • IMPC
    Evaluation of reagents dispersing for sphalerite and galena particles system

    By Carlos Pereira, Fábio de São José, Francielle Nogueira

    Votorantim Metals Corporation is one of the leader companies in the extraction of zinc in Brazil. One of its mines, located in the city of Vazante - MG, was composed by zinc silicate ores, but recent

    Jan 1, 2014

  • IMPC
    Study on Hydration of Calcium Sulfate Hemihydrate Whiskers

    Calcium sulfate whiskers are considered to be a prosperous reinforced material in application due to their high mechanical properties. But the hydration occurs easily at moist atmosphere or in aqueous

    Jan 1, 2014

  • IMPC
    Effects of froth depth and gas rate on an estimate of flotation froth phase bubble sizes

    By Michael. H. Moys, Clayton Bhondayi

    An electro-resistive measuring technique developed by the authors was used to study the effects of superficial gas velocity and froth height on froth phase bubble sizes as a function of height above t

    Jan 1, 2014

  • IMPC
    Turkey?s Energy Affairs with European Union and Coal Trend

    By G. Atesok

    Turkey?s EU affairs started in 1963 with the Ankara Treaty. On 31 December 1995 the Customs Union between Turkey and the European Union came into effect. In order to achieve the Copenhagen Criteria?s,

    Jan 1, 2014

  • IMPC
    A novel, energy efficient, two stage heap leach process for the extraction and recovery of PGMs

    By Jochen Petersen, Steven Bradshaw, Guven Akdogan, Ngoie Mpinga, James Mwase, Jacques Eksteen, Cornelius Snyders

    "The platinum group metals (PGMs) and associated minerals are particularly refractory to most traditional direct leach processes. However, the remoteness of many new ore deposits, socio-political risk

    Jan 1, 2014

  • IMPC
    Break-up in formation of small bubbles: Salts and frothers

    By Pengbo Chu, James Finch

    Bubbles around 1 mm diameter provide the high interfacial area for capture and transport of hydrophobic particles in flotation. The formation of such fine bubbles is commonly achieved by addition of f

    Jan 1, 2014

  • IMPC
    Molecular Mechanics Analysis of Flotation Behavior in Chalcopyrite or Malachite-Xanthates System

    By C. Y. Sun

    Flotation of chalcopyrite and unactivated malachite with xanthates (ethylxanthate, butylxanthate, octylxanthate and dodecylxanthate) is studied in this paper. Minerals interacted with xanthates are de

    Jan 1, 2014