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Effect of phase volume ratio, extractant and surfactant concentration on the predispersed solvent extraction of copper
By Aysan Molaei, Kristian Waters
Solvent extraction is the one of the most common techniques for recovering metal ions from aqueous systems. However, solvent extraction is generally limited to relatively high concentrations and requi
Jan 1, 2014
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On The Selection of Technologies of Comprehensive Processing of Ores of Nonferrous and Rare Metals Based on Penetrative Disclosure of Minerals Comprehensive Processing
By V. A. Ignatkina, V. A. Bocharov, T. I. Yushina, I. M. Petrov, A. A. Kayumov
"The purpose of this research was aimed at increasing recovery of metals from rebellious sulfide polymetallic ores of nonferrous and rare metal deposits. The ores under consideration have common proce
Jan 1, 2018
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Biohydrometallurgical Extraction of Non-Ferrous and Noble Metals from Primary Mineral Ores and Spent Stacks of Heap Leaching of Oxided Ores
By I. H. Mukhametshin, E. N. Baranova, I. B. Fadina, E. A. Ashirbaeva
The purpose of the research is the development of a complex of solutions for the maximum extraction of non-ferrous and precious metals from persistent mineral raw materials by heap bioleaching from sp
Jan 1, 2018
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Recovery of Metals from Shredded Television Scrap
By J. R. Cui
The production of electric and electronic equipment (EEE) is one of the fastest growing areas. This development has resulted in an increase of waste electric and electronic equipment (WEEE). In view o
Jan 1, 2014
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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
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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
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A frother characterization technique using a lab mechanical flotation cell
By Paulo Castillo, Cesar Gomez, Jaime Alvarez
Operations using flotation to produce mineral concentrates require testing of frothers to characterize their ability to preserve bubble formation size and to build a stable froth. Many techniques have
Jan 1, 2014
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Preparing Strontium Carbonate with Celestite Concentrate by Agglomeration-reduction Roasting Process
By G. H. Li
Preparation strontium carbonate with celestite concentrate by flotation is studied by agglomeration-reduction roasting process. It is shown that, the drop strength of green pellet is greater than 4 ti
Jan 1, 2014
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The Immobilisation of Organic Waste by Geopolymerisation (764cbab5-1f7e-4bb2-a85c-b6d8c5cd88fb)
By Charlene Gokhale
Geopolymerisation has emerged during the last few years as an industrial and ecological approach to construction and waste management. By utilizing waste materials and their reactive properties, it is
Jan 1, 2003
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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
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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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HPGR Roller Life Extension with Wear Management System
By M. Pischtschan, S. Belz, M. Perrucci
In High Pressure Grinding Rolls (HPGR), the material grinding takes place between the fixed and floating rollers. In this regard, the rollers start to wear over a period of time, which is impacted by
Jan 1, 2018
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Exploring the different dispersion effect of anionic polymeric dispersant on clay minerals in the flotation using fresh and saline water
By Di Liu, Yongjun Peng
"It was identified that clay minerals adversely affect fine coal flotation through slime coatings. In the study, it was interesting to find that an anionic polymer dispersant, lignosulfonate, successf
Jan 1, 2014
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Physicochemical interactions of mineral fines and their effects on selective mineral separations
By P. Somasundaran, Tarun Bhambhani, S. Murthy Khandrika, Partha Patra, D. Nagaraj
Fine and ultrafine mineral particles, particularly if, altered mineralogically, can have detrimental effects on selective separation of minerals. Behaviour of altered mineral fines has been investigat
Jan 1, 2014
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Relating the Enthalpy of Immersion to Mineral Surface Hydrophobicity
By B. McFadzean, J. Taguta
The enthalpy of immersion is the heat change arising from the replacement of the solid-gas interface with the solid-liquid interface when a solid surface is immersed in a liquid. Although immersion ca
Jan 1, 2018
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Jojoba oil as an alternative collector in the selective flotation of apatite and calcite at slightly acid conditions
By Achilles Dutra, Everton Santos, José Oliveira
The beneficiation of phosphate ores by froth flotation is the most efficient process used to separate apatite from gangue minerals like calcite, dolomite and quartz. However, the similarity of surface
Jan 1, 2014
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SMART WIRELES Solutions - Process control and variables monitoring in the mining industry
By Hugo Barrientos
"The growing need to optimize the mining processes produces a need for users to have a simple, reliable, secure and cost-effective method to monitor the values of the variables measured in field. The
Jan 1, 2014
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A comparison of open multiple-pass and closed circuit tests in a laboratory scale HPGR
By Samira Rashidi, Robert Dunne, Raj Rajamani
"High Pressure Grinding Rolls (HPGR) are known for more energy saving, better particle weakening and higher tonnage compared to semi-autogenous/ball mill circuits. These machines are scaled up based o
Jan 1, 2014
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Influence of Nanoscale Roughness on Flotation
By Scott C. Brown, Brij M. Moudgil, Ivan U. Vakarelski
The manipulation of the apparent hydrophobicity of particlute surfaces is necessary to achieve optimal selectivity in flotation processes. Previously a number of works have investigated the role of mi
Jan 1, 2003
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The Influence of Acting Forces on Drainage and Rupture Of Wetting Films
By K. W. Stöckelhuber, A. Wenger, H. J. Schulze
"An important elementary step of the flotation process is the forming, drainage and rupture of a thin intervening liquid film between bubble and mineral particle.After the encounter of the bubble with
Jan 1, 2003