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1+1/4 Necessary and Sufficient Conditions of Organic Che-lating Agents as Depressors or Activators
By W. G. Wu
More and more researches and applications of organic chelating agents as depressors or activators are carried out in the course of research and application of modern flotation. The paper puts forward
Jan 1, 2014
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Economic impact due to absenteeism on coal mining: Coopracarcegua Ltda. case
By Carlos Gualdron, Elizabeth Gomez, Rafael Bolivar
The productivity index of the Coopracarcegua Ltda., a mid-size coal mining company of Norte de Santander, Colombia, was related absenteeism using accident, productivity and profit data four years. The
Jan 1, 2014
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Comparison of ANN and RSM in modeling the VP-WHIMS process parameters
By M. Saghaeian, R. Hejazi, H. Abedini
Vertical ring and Pulsating Wet High Intensity Magnetic Separator (VP-WHIMS) is widely used for week magnetic mineral beneficiation or ferrous impurity removal from non-metallic minerals. Because of t
Jan 1, 2014
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Leaching of Nickel and Cobalt from Low-grade Nickel Laterite Ores Using Organic Acids by Aspergillus Niger Excreted
With shortage of sulfide nickel ores, laterite ore was paid more attention by scientists. Because its grade is commonly lower than sulfide nickel ores, laterite ore can not be utilized effectively be-
Jan 1, 2014
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Mossbauer Study of Iron Sulphides in Mining Ores
By Stephen J. Harker, John Knights, Randolph A. Pax, Glen A. Stewart
"Mineral samples were obtained from different stages of a mineral processing circuit used to extract the copper and gold rich mineralogical phases. The aim of this work is to characterise the quality
Jan 1, 2003
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Optimization And Modeling On Acidic Leaching Of Low Grade Copper Oxide Ore Using D-Optimal
By D. Moradkhani
Copper metal has important role in the basic industrials, as if it did not exist, modern human life would not develop! Copper leaching, as the first step, is important step in copper production proces
Sep 1, 2012
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Study on Beneficiation and Dephosphorization of Refractory Oolitic Hematite Ore
Beneficiation and dephosphorization of refractory oolitic hematite ore are investigated in this paper. It is shown that single magnetic separation, gravity separation or flotation is unable to recover
Jan 1, 2014
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The Effect Of Using Thiol Collector Mixtures On The Flotation Of Pyrite And Galena
By B. McFadzean
Thiol collector mixtures are commonly used in the flotation of base metal sulfides and platinum-bearing ores. There are synergistic benefits claimed for these collector mixtures, with mixtures lowerin
Sep 1, 2012
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Effect of particle size on flotation of polysulfide copper sedimentary ore
By Andrzej Luszczkiewicz, Aleksandra Potulska
"Flotation is a basic process of beneficiation of mineral raw materials which requires very fine grinding for liberation of valuable minerals. Probably flotation will also play this role in the future
Jan 1, 2014
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On the Preparation of Ultrafine Calcium Sulfate Whiskers with Hydrothermal Method and Application Research in Polypropylene
By X. L. Wang
Hydrothermal method was applied in the preparation of calcium sulfate whiskers in airtight re-actor using gypsum as primary materials. The optimum conditions of preparation are as follows: pH value 9.
Jan 1, 2014
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Magnetic separation between the paramagnetic mineral particles by changing the magnetization of the medium
By Kunihiko Yamaguchi, Gjergj Dodbiba, Toyohisa Fujita
Usually magnetic separation is performed to separate ferromagnetic, paramagnetic and diamagnetic particles by controlling magnetic field strength. In this research the wet high gradient magnetic separ
Jan 1, 2014
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Beneficiation of hematite iron ore containing goethite impurity
By Milind Chikhale, Ranjeev Kumar, Keshav Tyagi
Ore characterisation including mineralogy and beneficiation testwork of an ore is very important for determination of possible products and their quality. The results of such study help in ascertainin
Jan 1, 2014
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Optimal Selection Of Grinding Medium For A Drum Mill
By M. Vulkov
The paper is focused on the optimal selection of grinding medium for a drum mill. The decision-making is based on the fuzzy multiple attribute approach. One way to optimize the grinding process in a t
Sep 1, 2012
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Increased Metal Recovery Using Targeted Process Water Treatment
By Janne Kauppi, Kaj Jansson, Piia Suvio, Saara Hagnäs
"Historically the focus at the mineral processing sites has been to improve the production operations, while little focus has been set on how factors, such as the quality of water used in the process
Jan 1, 2018
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Testing the High Frequency Fine Screen Model Using Industrial Data
By S. Gomez, P. A. Bebswa, A. N. Mwale
"The research aimed at improving the way screen performance analysis is conducted using a model that accounts for most feed and design parameters in its formulation. Thus, the aim was to validate the
Jan 1, 2018
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Beneficiation Techniques for the Production of Battery Grade Manganese Concentrate from Mine Waste Dumps (Dongri-Buzurg Manganese Mine, India)
By A. T. Sutaone
"Battery grade Mn ore is not found in India except in Dongri-Buzurg Mine, Dist. Bhandara, Maharashtra. The mine located in central India is operated by a premier company viz. Manganese Ore India Ltd.,
Jan 1, 2003
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Some Applications Of Tóth-Isotherm In Mineral Processing
By l. Bokányi
The Tóth adsorption isotherm-model was derived and has been widely used for the inhomogeneous solid surfaces. The three-parameter isotherm incorporates the effect of the interaction between the adsorb
Sep 1, 2012
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Use of flotation to recover carbon matter from coal tailings
By Gorki Davila, Irineu Brum
"Brazil has large reserves of coal (32 billion tons) located predominantly in the south of the country. Despite the relative ease of exploitation, these resources have been underestimated as a source
Jan 1, 2014
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Improvement in product of silica plant by modification of size classifying unit and application of attrition scrubber
By Mahdi Shevrini, Hamed Haghi
"In this research, the operation of screen classifying in silica processing circuits was investigated and modified by replacement of available trommel screens with teetered bed separator (TBS). In add
Jan 1, 2014
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Pareto Based Optimization Of Flotation Cells Configuration Using An Oriented Genetic Algorithm
By D. Pirouzan
It is customary to use more than one stage of flotation to obtain an acceptable level of separation of valuables. Flotation circuit design is usually accomplished by applying empirical rules which usu
Sep 1, 2012