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Vol. 22 N° 2 - Minerals engineering Janvier 2009 |
Vol. 22 N° 1 - Minerals engineering Janvier 2009 |
Vol. 22 N° 3 - Minerals engineering Fevrier 2009 |
Vol. 22 N° 4 - Minerals engineering Mars 2009 |
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Minerals engineering : an international journal devoted to innovation and developments in mineral processing and extractive metallurgy, Vol. 22 N° 3. Minerals engineering - Fevrier 2009
| Titre : | Minerals engineering : an international journal devoted to innovation and developments in mineral processing and extractive metallurgy, Vol. 22 N° 3. Minerals engineering - Fevrier 2009 |
| Type de document : | Bulletin |
| Paru le : | 15/11/2009 |
Dépouillements
Article : texte imprimé
A review of techniques for measurement of contact angles and their applicability on mineral surfaces
T. T. Chau, Auteur
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Knowledge of the wetting characteristic of mineral surfaces is paramount in enhancing the efficiency of separation of valuable minerals from gangue using froth flotation. The contact angle value is a useful indicator providing the hydrophobic ch[...]
Article : texte imprimé
G. Unland, Auteur ;
Y. Al-Khasawneh, Auteur
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The influence of the shape of limestone particles on impact crushing parameters has been investigated by testing single particles in a high-resolution impact analyzer. The measurements conducted included the contact time and force, the transferr[...]
Article : texte imprimé
E.M. Córdoba, Auteur ;
J.A. Muñoz, Auteur ;
M. L. Blázquez, Auteur
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The passivation of chalcopyrite in the presence of ferric sulphate solutions was investigated at 68 °C. The effect of different variables (pulp density, pH and the presence of oxygen) on both the copper dissolution rate and the formation of soli[...]
Article : texte imprimé
D. García, Auteur ;
C.L. Lin, Auteur ;
J.D. Miller, Auteur
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Direct determination of intergranular fracture during multiphase particle breakage is a difficult task to achieve. Perhaps the only method of analysis is measurement of interphase area before and after comminution. Conservation of interfacial ar[...]
Article : texte imprimé
Mohamed I. Al-Wakeel, Auteur ;
C.L. Lin, Auteur ;
Jan D. Miller, Auteur
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Phosphate flotation has been used by industry for more than a half century but still faces many technical challenges. Such challenges include not only the selection of the chemical reagents but the characteristics of the feed itself. This paper [...]
Article : texte imprimé
Denise Bevilaqua, Auteur ;
Heloisa A. Acciari, Auteur ;
Fabiana A. Arena, Auteur
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In this work, the monitoring of the bacterial and chemical dissolution of bornite was evaluated using cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS); the mineral surface was examined using scanning electron microscopy ([...]
Article : texte imprimé
Orhan Ozdemir, Auteur ;
Stoyan I. Karakashev, Auteur ;
Anh V. Nguyen, Auteur
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In this study, the equilibrium and dynamic surface tensions of sodium chloride and potassium chloride solutions have been measured as a function of concentration up to saturation (5.2 M for NaCl and 4.1 M for KCl) using sessile bubble tensiometr[...]
Article : texte imprimé
M. Massinaei, Auteur ;
M. Kolahdoozan, Auteur ;
M. Noaparast, Auteur
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In this investigation the froth zone of an industrial column (4 m “diameter” × 12 m “height”) in rougher circuit was characterized. Experiments were carried out at Miduk copper concentrator, Iran. Miduk is a unique copper processing plant which [...]
Article : texte imprimé
S. Gredelj, Auteur ;
M. Zanin, Auteur ;
S.R. Grano, Auteur
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Century Mine, operated by Zinifex, is one of the largest zinc and lead deposits in Australia. The ore contains sphalerite and galena as valuable minerals, and carbonaceous material is present among the gangue minerals. The presence of carbonaceo[...]
Article : texte imprimé
Junya Cao, Auteur ;
Guangji Zhang, Auteur ;
Zaisha Mao, Auteur
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The aim of this work was to explore the possibility of using sulfate-reducing bacteria for the retrieval of valuable metals from a bioleaching solution. Tests were conducted to determine whether the bacteria produced hydrogen sulfide that could [...]
Article : texte imprimé
Erik Hulthén, Auteur ;
C. Magnus Evertsson, Auteur
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Cone crushers are used in the mineral, mining, and aggregate industry for fragmentation of rock materials. Control systems for cone crusher settings are widely used for compensating for wear and protecting the machines from high pressure. Howeve[...]
Article : texte imprimé
Z. Xiao, Auteur ;
André R. Laplante, Auteur ;
James A. Finch, Auteur
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A protocol for predicting recovery of platinum group minerals (GRPGM) is adapted from the protocol for gravity recoverable gold. This paper introduces the methodology to characterize the content of GRPGM in samples using the 3-in. (7.5 cm) labor[...]
Article : texte imprimé
S. Mohapatra, Auteur ;
N. Pradhan, Auteur ;
S. Mohanty, Auteur
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The present study deals with the extraction of nickel from lateritic nickel ore of Sukinda mines, Orissa, through microbial leaching using Aspergillus niger. The presence of significant metals in oxidic nickel ores, are potential sources of nick[...]
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