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An Investigation into the Precipitation of Nickel(II) and Cobalt(II) as Sulphides
By Ashton M. Swartbooi, Robert van Hille, Alison E. Lewis
"Nickel production by precipitation using hydrogen reduction generates an ammonium sulphate solution containing approximately 2g/L of nickel, and 1g/L of cobalt as an impurity of the process. Sulphide
Jan 1, 2003
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Flow field analysis of the impeller and stator region in KYF flotation cell
By Wu Tao, Lu Shijie, Xia Xiaoou, Zhang Ming
The impeller and stator are the most important components that can significantly influence the performance of flotation cells directly. The performance of the impeller and stator of KYF flotation cell
Jan 1, 2014
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Frothing and Surface Tension Effects in the Fatty Acid / Nonionic (Collector/Frother) System
By Katarina Theander, Robert J. Pugh
In the flotation process, control of the stability of the froth is extremely critical. In the case where the froth is too stable then mechanical entrainment of particles can occur but in the opposite
Jan 1, 2003
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The Application of Power Ultrasound to Surface Cleaning and Activation in Mineral Processing
By A. Collings, A. Farmer
"Power ultrasound may be used in the processing of mineral suspensions to clean the particle surfaces of oxidation products and fine coatings, mainly through the large, but very localised forces, prod
Jan 1, 2003
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Evaluating classic froth washing technology to increase the concentrate grade: Theory and experiments
By Williams Calderon, César Arredondo, Gonzalo Montes-Atenas
The quality of final concentrate in froth flotation circuits is largely dictated by the correct implementation of the froth washing operation in flotation cleaning stages, which are commonly installed
Jan 1, 2014
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Study on the Adsorption Behaviors of Metal Ions and the Floatability of the Silicate Minerals
By Jia Muxin
The adsorption behaviors of metal ions on a silicate mineral and the flotability of a metalized silicate mineral with sodium oleate as collector are closely related to the structure of the silicate mi
Jan 1, 2003
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Problem of Process-Related Damage to Diamonds and Possible Ways of Its Solution. Instrumental Assessment Method
By I. V. Makarskii, D. N. Nikitin, L. G. Tarasova
"The extent and nature of the damage to diamonds at processing plant is largely determined by the design features of the equipment, the characteristics of the feed ore and the parameters of the ore di
Jan 1, 2018
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Intensification of Non-Ferrous Metals Leaching From Low-Grade Copper-Nickel Ores and Tailings
By V. A. Masloboev, A. V. Svetlov, D. V. Makarov
"The methods of heap leaching are considered to be the most promising for the low-grade copper-nickel raw materials. The article presents intensification capabilities of the process. Objects of resear
Jan 1, 2018
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High energy milling in a planetary ball mill: Discrete element and population balance modelling
By Venkataramana Runkana, Shantanu Maheshwari
As the world reserves of high quality ores are getting depleted at a rate higher than ever, the liberation of valuable minerals from low grade ores is becoming more and more relevant and imperative. B
Jan 1, 2014
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Quantitative analysis of sub-microscopic and surface preg-robbed gold in gold deportment studies
By Brian Hart, Stamen Dimov
"In refractory ores, a substantial part of the gold content may be present as a sub-microscopic component within the mineral matrix of the various carriers. This type of gold may be present as finely
Jan 1, 2014
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The Role of Product Design and Liberation in the Optimisation of Recycling Passenger Vehicles
By Markus A. Reuter, Bernardete Castro, Antoinette van Schaik, Han Remmerswaal
"INTRODUCTIONThis paper describes the inseparable relation between product design, liberation, and metallurgical recovery in the optimisation of the recycling of passenger vehicles. This is illustrate
Jan 1, 2003
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Pressure oxidation of refractory gold-bearing concentrates using halide-based lixiviants and an adsorbent
By Sergey Gudkov, Yuri Yemelianov, Stanislav Balikov, Andrey Boldyrev, Andrey Bogorodsky
"The results of POX of refractory gold-bearing concentrates using halide-ion as a lixiviant for precious metals and activated carbon as an adsorbent are given. It was found that gold did not recover t
Jan 1, 2014
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An Investigation on Polyelectrolyte Adsorption on Kaolin Correlated with Zeta Potential and Rheology Studies
By M. S. Eygi
This study covers the investigations based on the electrokinetic and rheological properties to explain the interactions between kaolin minerals and commercially available polyelectrolyte in anionic ch
Jan 1, 2014
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The effect of the bubble and particle size distributions on the kinetic rate constant
By C. Suazo, N. Mora
"The bubble size distribution plays a fundamental role in flotation kinetics. Nowadays it is possible to measure the bubble size distribution, gas holdup and superficial gas velocity by using speciali
Jan 1, 2014
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Characterization of the Centrifugal Mill by Lumped Kinetic Math Model and Discrete Element Model
By Katsunori Okaya, Toshio Inoue
"Movement of mill charge in the centrifugal mill is essentially dissimilar from that in the vibration mill with circular path despite the apparently similar mode in the motion of mill body. This dissi
Jan 1, 2003
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The Influence of Acting Forces on Drainage and Rupture of Wetting Films (ABSTRACT PAGE)
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
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Assessing the segregation in the built of column leach porous structure: Theory and simulations
By Camilo Uribe, Williams Calderón, Gonzalo Montes-Atenas
In industrial hydrometallurgical operations, the leaching process is often implemented via heap or dump leaching operations. During the pile up of these massive amounts particles a porous material is
Jan 1, 2014
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Study Of Charge Dynamics And Reaction Milling In A High Energy Horizontal Axis Planetary Mill
By P. Prakash
A dual-drive planetary mill, which has a rotating shaft that sweeps a circle of diameter 750 mm, has been designed. The planetary mill is powered by a 5 hp motor to rotate the main shaft and a 3 hp mo
Sep 1, 2012
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Frother effect on bubble size in the presence of structure making and structure breaking salts
By Nóra Schreithofer, Zoltán Jávor, Kari Heiskanen
"One of the challenges the mineral processing industry is facing is caused by the fact that water resources in mining areas are becoming very limited and the cost of water is increasing. The water sou
Jan 1, 2014
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Remediation of sediments contaminated with heavy metals and organic matter by environment-friendly leaching process
By Sung. Hyejin, Kyoungkeun Yoo, Oh-hyeok Kown
The sediments near coasts and ports in Korea have been found to be contaminated with heavy metals and organic matters. So far the sediments have been dumped to landfill sites or ocean. However, the nu
Jan 1, 2014