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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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