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  • IMPC
    Dissecting grinding circuit efficiency using functional performance

    By Kyle Bartholomew, Robert McIvor

    "Functional performance analysis of closed circuit grinding provides valuable insight into the two components of ball mill circuit grinding efficiency: classification system efficiency and mill grindi

    Jan 1, 2014

  • IMPC
    Air Recovery: Its Significance and Prediction

    The air recovery from a flotation cell is the fraction of inlet air which overflows the weir as un-broken bubbles. The air recovery is an important factor in froth phase phenomena; such as gangue entr

    Jan 1, 2014

  • IMPC
    Raman analysis: Detection of minerals and measurement of concentration using reference spectra

    By Olli Haavisto, Heikki Häkkänen, Tommi Kauppinen, Navid Khajehzadeh

    Raman analysis is a well-established method for finding the abundant minerals in an ore sample. In this study, Raman spectroscopy is tested as a method for rapid and contactless on-line mineral analys

    Jan 1, 2014

  • IMPC
    Test Results and Development of a Technology of Gold-copper Ore Cyanidation

    By Olga D. Khmelnitskaya

    The paper presents the results of research on the development of gold recovery technology from oxidized gold-copper ore of one of deposits in Russian Federation. Gold and copper grades in the ore are

    Jan 1, 2014

  • IMPC
    Simulation of sensor-based sorting based on drill core analysis

    By Kilian Neubert, Hermann Wotruba, Henning Knapp

    Sensor-based sorting has been integrated into more and more applications in mineral processing over the past decades. Various sensor types, such as line scan cameras, near infrared sensors and X-ray t

    Jan 1, 2014

  • IMPC
    Irgiredmet?s Experience On Research, Development And Introduction Of Heap Leaching

    By Alexey P. Tatarinov

    Under modern economic conditions in Russia, gold heap leaching is the most effective way of investing into gold-mining industry. Gold is recoverable from small-size deposits, low-grade ores from oxida

    Sep 1, 2012

  • IMPC
    Electrokinetic behavior of egyptian coal in the presence of some nonionic surfactants

    By E. Kusaka, M. EL Salmawy

    "The electrokinetic behavior of EL Maghara coal has been investigated in the presence of nonyl and octyl nonionic surfactants containing polyethoxy of different sizes with trade names of Triton-X100 (

    Jan 1, 2014

  • IMPC
    Prospects creation technological systems electric pulse fracture ores based on new electrical base

    By H. Mengbing, A. Potokin, A. Usov

    "Revealed and analyzed in the study are the ways of significant perfection of specific characteristics of the equipment, such as use of high-frequency voltage transformation to create a charger; use o

    Jan 1, 2014

  • IMPC
    Optimizing Automatic Control Systems of Flotation Process by Application of Computerized Models

    By V. Avdochin

    The main reason of flotation process fluctuations is mixing ores of various properties from various sections of a deposit. Other, also important reasons are changes in parameters of facilities of tech

    Jan 1, 2014

  • IMPC
    Leaching of Gold and Silver with Ferricyanide-cyanide Solution

    By F. Xie

    Low gold and silver leaching kinetics has been commonly observed in traditional gold-silver cyanidation process, especially in those heap-leaching operations. The reactivity and availability of oxidan

    Jan 1, 2014

  • IMPC
    Surface Chemical Studies on Galena and Sphalerite Using Mineral-Adapted Bacillus Polymyxa (74686c29-3dc0-440f-856d-71337b05d999)

    By S. S. Indi, D. Santhiya, S. Subramanian, K. A. Natarajan

    The interaction of sphalerite- and galena-adapted Bacillus polymyxa (B. polymyxa) cells with sphalerite and galena has been investigated through adsorption, electrokinetic and flotation studies. The a

    Jan 1, 2003

  • IMPC
    Aggregation Effect of ZN and MG Ions in Sulphide Mineral Pulps

    By A. Buchanan, M. Mirnezami, A. L. Restrepo, J. A. Finch, M. S. Hashemi

    Settling rate studies on slurries from Cu/Zn flotation plants occasionally revealed two aggregation maxima at pH 8-10 and 10-12. From measurements on sphalerite and silica suspensions the double maxim

    Jan 1, 2003

  • IMPC
    Efficient Elimination of Stubborn Slimes Using a Hydrocyclone

    By P. Saha, D. M. Chakrabarti, J. P. Srivastavam, P. Bhattacharyya, B. R. Sarkhel, Banerjeem B.

    The phosphatic soil deposit at the Sukulu hills region of Uganda contains 10-12% P2O5. The ore occurs as a naturally degraded soil deposit containing a very sticky slime composed of earthy lateritic m

    Jan 1, 2003

  • IMPC
    Interpreting low energy attrition behaviour in a pilot mill using numerical modelling

    By Nirmal Weerasekara, Malcolm Powell, Mohsen Yahyaei

    "The conditions under which rocks become superficially damaged during the grinding process are not well understood. The main purpose of the work presented here is to understand how superficial breakag

    Jan 1, 2014

  • IMPC
    Effect of water composition on flotation of lead and zinc sulphide ore

    By Gülay Bulut, Ünzile Yenial

    "Water composition has a significant effect on flotation. A better understand the role of water composition in flotation is very important for process quality and performance. Based on source of proce

    Jan 1, 2014

  • IMPC
    Regulating galena deportment in a flotation poly-metallic plant by integrating continuous centrifugal technology

    By Bern Klein, Givemore Sakuhuni

    Flotation is the dominant base metal extraction technique and it requires ore to be ground below the liberation size for effective recovery due to its dependence on mineral surface properties. For a p

    Jan 1, 2014

  • IMPC
    Electrokinetic/Reactive Barrier System For The Treatment Of Nitrate In Ground Water

    By Tasuma Suzuki

    Electrokinetic/permeable reactive barrier system is a promising in situ soil and ground water remediation technique to reduce toxic NO3- into less toxic NH4+. Using granular zero-valent iron (Fe0) as

    Sep 1, 2012

  • IMPC
    Multi-Element Geochemistry for Bulk Mineral Characterization of Hydrothermal Alteration Associations in Porphyry Copper Deposits and Applications to Predictive Geo-Metallurgical Modeling

    By Pamela Castillo, Marcia Muñoz, Rodrigo Luca, Brian Townley, Fernando López

    In the present study we discuss the value of multi-element geochemistry as a tool for semi-quantitative to quantitative bulk mineral characterization in geological and geo-metallurgical modeling of po

    Jan 1, 2018

  • IMPC
    The Behaviour Of Cyanides And Thiocyanates Contained In Oxidized Gold-Bearing Ores During Their Disposal As Filtration Cakes

    By S. V. Petrov

    Oxidised ores possess a significant share among raw materials which are treated by traditional plant technology. As usual, the chemical composition of these ores is rather simple. They can be treated

    Sep 1, 2012

  • IMPC
    Coal Effects in Combined Direct Reduction - Electrical Smelting of Iron Ore

    By P. Chris Pistorius, Johannes Sono, Rossouw Sono, J. J. Kobus

    Different coal properties are important in SL/RN (coal-based rotary kiln) direct reduction of iron ore, and in electrical smelting of prereduced iron ore. These differences were highlighted when a pla

    Jan 1, 2003