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Study on the new technology of flotation separating of christophite and As-bearing sulfide ore
By Tong Guan, Guangqin Fu, Lihong Deng, Xiaotong Zhou
The raw ore contains many kinds of valuable metal elements. It is rich in valuable metal elements, such as Pb, Zn, Sb, Sn, Ag and is associated with S,Fe,As,In,Cd. A new technology which includes medi
Jan 1, 2014
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Recycling of non-ferrous metals, precious metals and rare earth metals from MSW
By Peter Ay, Bodo Müller, Jens Markowski, Manfred Kanthak, Florian Logsch
"Presently the global commodity situation for non ferrous-, precious- and rare metals is characterized by a strong increase in consumption and a simultaneous shortage of materials derived from primary
Jan 1, 2014
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Electrical Properties Of Composite Mineral Particles And Their Effect On Dielectrophoresis
Dielectrophoresis is a separation technique that uses a non-uniform electrical field to separate particles on the basis of their permittivity. There are many areas of mineral processing that might ben
Sep 1, 2012
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Oil Assisted Column Flotation of a Cassiterite-Bearing Complex Skarn Ore from the Ore Mountains, Germany
By Edgar Schach, Tom Leistner, Markus Buchmann, Urs A. Peuker, Martin Rudolph, Marius Kern
"In this study, the flotation characteristics of a cassiterite-bearing fine-grained and complex skarn ore from a deposit in the Ore Mountains is investigated. The tests are performed using an oil-assi
Jan 1, 2018
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Development of physically based tumbling mill models
By Hans-Åke Häggblad, Bertil I. Pålsson, Jan Stener, Kent Tano, Andreas Berggren, Pär Jonsén
Numerical modelling of grinding in tumbling mills is traditionally done with the discrete element method (DEM). The grinding balls are then represented by DEM particles and the mill structure is consi
Jan 1, 2014
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Continuous improvement in SAG mill liner design using new technologies
By Robinson Irarrazabal, Edison Collinao, Rodrigo de Carvalho, Patricio Davila, Marcelo Tavares
"In recent years, DEM (discrete element method) softwares, along with 3D laser measuring equipment, have become powerful tools to describe mill charge behavior, as well as forces acting on the liners
Jan 1, 2014
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Analysis Of Separation Results By Means Of The Grade-Recovery Halbich Upgrading Curve
By J. Drzymala
Ores and raw materials are subjected to mineral processing operations to increase the content of their useful components. Upgrading of these materials can proceed with different selectivity and theref
Sep 1, 2012
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Atmospheric Oxidation of a Gold-Copper Flotation Concentrate
By Yu. E. Emelyanov, A. V. Bogorodsky, R. N. Nabiulin, S. V. Balikov
"The paper describes the results of the study of gold-copper flotation concentrate atmospheric oxidation at different sizes of material, varying oxidation time, with air or oxygen blow. The study show
Jan 1, 2018
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Ball size effect analysis in SAG Grinding
By Miguel Becerra, Daniel Jordán, Jorge Soto, Luis Torres
"Most SAG grinding operations currently use ball sizes between 5.5 and 6 inch maximum size. However, in most cases the use of this ball sizes hasn’t been justified by a phenomenological analysis of th
Jan 1, 2014
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A Topographical Map of the Innovation Landscape
By Leon Lorenzen, Victor E. Ross, Anton W. Kleingeld
Key to successful innovation, whether at organization, industry or national level, is the alignment and utilization of resources in the most appropriate and efficient way. Innovation needs to be direc
Jan 1, 2003
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Catalytic Oxidation of Refractory Gold Concentrate with High Sulphur and Arsenic by Nitric Acid
To extract the gold from refractory gold concentrate with high sulfur and arsenic, the gold concentrate was catalytically oxidized to expose the gold for cyanide leaching. The effects of reaction temp
Jan 1, 2014
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Evaluation of phosphate depressants in the phosphate/dolomite system
By Robert Snow, Shibo Zheng, Wenyi Song, Xiaoqing Ma, Patrick Zhang
Numerous phosphate mineral depressants have been reported in the literature for use during anionic flotation of dolomite from carbonate fluorapatite in slightly acid circuits. In one part of this rese
Jan 1, 2014
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Outcome Analysis of Testwork Carried Out Using Various Separation Methods to Determine Oxidized Quartzite Properties
By I. N. Gridasov, T. V. Ignatova, E. V. Shelepov
"Mikhailovskoye Deposit is comprised of oxidized ferruginous quartzites among other minerals with the former widely spread across the ore field and mined along with unoxidized ferruginous quartzites.
Jan 1, 2018
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Characteristics of Secondary Copper Minerals Using Heat and Microwave Treatments for Physical Separation
By G. Dodbiba, T. Fujita, M. Kawata, S. Yamasaki, K. Mitsuhashi, J. Ponou, Y. Iwazaki, T. Atarashi
"The grade of copper ore and concentrate is recently decreasing and it will continues decrease further in the future. The effective liberation treatment for low grade copper ore and the removal of ars
Jan 1, 2018
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Application of pneumatic flotation machines CFM for dressing non-ferrous metals and zinc cakes
By Mark Viduetsky, Dmitry Tropnikov, Victor Maltsev, Victor Sokolov, Alexander Purgin, Andrey Panshin, Alexander Bondarev, Pavel Kozlov, Igor Garifulin
"CFM pneumatic flotation machines were developed by the Institute of Materials Science and Metallurgy, UrFU, and designed to concentrate a wide range of ores and man-made materials. A key principle of
Jan 1, 2014
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Flotation Performance of a New Chelating Collector
By W. G. Liu
Phenyl malonic acid (PMA), a new chelating collector, which contains a phenyl structure and a malonic acid chelating group, has been synthesized and its collecting capabilities to calamine, hematite,
Jan 1, 2014
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Optimized Combined Processing Technology for the Accumulated Refractory Copper Ore Tailings at Madneuli Deposit
By A. V. Abshilawa, D. G. Talakhadze, R. I. Sturua
"Processing of the tailings accumulated over the lifetime of Madneuli Copper Concentrator is an opportunity to extract additional salable copper and gold products. This paper presents a pre-concentrat
Jan 1, 2018
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Application Of Ordinary Kriging In Purpose Of Determination Of Ash Contents In Coal Dependably On Density And Particle Size Of Comminuted Material
By T. Niedoba
The ash contents in coal particles were examined in the paper dependably on particle size and its density. So, the two-dimensional regressive function Z=Z(?, D) was the searched object, where Z is ran
Sep 1, 2012
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The Study Of Kinetics Of Gold Leaching Using High Concentration Cyanide Solutions
By Andrey V. Yevdokimov
The results of the test work on gold leaching using high strength of cyanide solution in the presence of activators are presented. The major physical and chemical relationships of gold leaching were d
Sep 1, 2012
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Fine Coal Separation Using An Air Dense Medium Vibrated Fluidized Bed
By Yuemin Zhao
Pre-combustion cleaning of coal plays a key role in the process of efficient and clean utilization of coal resources. Recently, wet beneficiation of coal is predominant around the world. Nevertheless,
Sep 1, 2012