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  • IMPC
    Activation/depression of sphalerite by calcium sulfate in flotation water

    By Alejandro Uribe-Salas, Fabiola Nava-Alonso, Gloria Dávila-Pulido

    This paper presents results of an experimental study performed on the role of calcium sulfate present in flotation water on sphalerite flotation in the Pb/Cu circuit (non Cu-activated sphalerite) and

    Jan 1, 2014

  • IMPC
    An investigation into the relationship between particle shape and entrainment

    By Megan Becker, Cyril O’Connor, Jenny Wiese, Gaynor Yorath

    The effect of particle shape on true flotation has been widely reported. The present paper presents results obtained in investigating the effect of particle shape on the entrainment of particles durin

    Jan 1, 2014

  • IMPC
    A mechanistic model of SAG mills

    By Rodrigo Carvalho, Marcelo Tavares

    "The accurate prediction of the outcomes in SAG grinding has been a great challenge to researchers and process operators. The use of Discrete Element Methods for modelling charge motion in tumbling mi

    Jan 1, 2014

  • IMPC
    The Experimental Research on Flotation of Low-grade Zinc Oxide Ore

    By B. Z. Wu

    The flotation of low-grade zinc oxide ore which from Guizhou has been researched by sulfuration- amine method. The experimental result indicated that when pH of pulp was 11, good flotation index can b

    Jan 1, 2014

  • IMPC
    Sensor-Based Separation Of Carbonates

    By M. R. Robben

    Carbonates have gained significant economic importance for the human kind. On one hand over a hundred uses are listed for carbonates. On the other hand, carbonates host base metal deposits. Although t

    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
    Closing The Skill Gaps And Labor Shortages: A Priority For Mining Companies And The Chilean Government

    By H. Araneda

    Throughout Chile?s history, mining has consistently been a leading industry in the country. The 1990s marked the beginning of a boom in Chile?s mining industry, especially in copper mining, due to bot

    Sep 1, 2012

  • IMPC
    Modelling of Galenite Flotation from a Dissaminated Pb-Zn Ore Using Central Composite Design Method

    By H. Koca, D. O. Aksoy, S. Koca

    "In this work, modelling of galena flotation from a disseminated Pb-Zn ore containing 0,83 % Pb was investigated. In the flotation experiments, collector type and amount, frother type and amount, part

    Jan 1, 2018

  • 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
    Plate type gangue minerals and their impact on flotation performance

    By P. Somasundaran, Tarun Bhambhani, D. R. Nagaraj, P. Patra

    "Certain non-sulfide gangue minerals are known to have a detrimental impact on flotation performance. When present in large amounts, they can negatively affect recoveries, grades and throughput at cur

    Jan 1, 2014

  • IMPC
    Characterising the deleterious effect of phyllosilicate minerals on the copper flotation via froth stability analysis

    By Bulelwa Ndlovu, Saeed Farrokhpay, Dee Bradshaw

    The effects of phyllosilicate minerals on the flotation performance and froth stability of a copper ore was investigated. It was found that various phyllosilicate minerals affect the copper recovery d

    Jan 1, 2014

  • IMPC
    A Training Simulator For Crushing Plant Operators

    By E. Hulthén

    Crushing plants are widely used around the world as a pre-processing step in the mineral and mining industries and as standalone processing plants in the aggregates industry. Despite automation and di

    Sep 1, 2012

  • IMPC
    Development and application of complex Flashing-field magnetic cleaner

    By Jiang Wenli, Zhang Yimin

    In order to enhance the quality of iron concentrate from magnetic separation, reverse-flotation technology is often applied in an iron ore dressing plant.However, this technology has disadvantages in

    Jan 1, 2014

  • IMPC
    Eneficiation of Low Grade Chromite Ores: Experiences at Tata Steel

    By O. N. Mohanty, S. Mohan Rao, N. D. Rao, T. Mukherjee, P. V. T. Rao

    "Tata Steel has its captive chromite resources at Sukinda, Orissa. They contain two ore types, i.e. (i) Ferruginous and (ii) Siliceous. The generation of off-grade ores is an increasing trend and simu

    Jan 1, 2003

  • IMPC
    The role of sampling and metallurgical test work during mining projects development

    By Leon Lorenzen, Nursen Guresin, Harald Muller

    The development of mining projects from discovery, exploration to actual production is a complex and time consuming process. Often poor process plant performance can be attributed to the use of non-re

    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
    Sustainable practices in water reuse in processing of ornamental stones

    By Bruno Miotto, Rômulo Faria, Juliano Tessinari

    Water has become a scarce resource in quality. Companies in the ornamental stones sector use water intensively in their processes. Given the current situation, it is imperative to rationalize this fea

    Jan 1, 2014

  • IMPC
    Real-Time Condition Management of Critical Plant Equipment and Processes

    By Rebecca Hope, Derick Moolman, Frikkie Malan

    "Despite the lip service that has been paid to pro-active plant maintenance processes over recent years, a significant portion of maintenance in industry is still reactive. The business driving force

    Jan 1, 2003

  • IMPC
    Experiments on the flotation of coarse composite particles

    By Graeme J. Jameson

    "When mineral particles are floated in a mechanical flotation cell, it is found that the rate constant, after reaching a maximum value, starts to decline as particle size increases. It had been though

    Jan 1, 2014

  • IMPC
    An Investigation of the Thermophilic Bioleaching of Pyrite

    By G. S. Hansford, G. E. Searby

    The rate of bioleaching of pyrite at 70ºC by a thermophilic archaeal culture was measured as a function of the solution redox potential by the staged addition of pyrite to a batch system. The results

    Jan 1, 2003