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Vol. 22 N° 4 - Minerals engineering Mars 2009 |
Vol. 22 N° 3 - Minerals engineering Fevrier 2009 |
Vol. 22 N° 2 - Minerals engineering Janvier 2009 |
Vol. 22 N° 1 - Minerals engineering Janvier 2009 |
Minerals engineering : an international journal devoted to innovation and developments in mineral processing and extractive metallurgy, Vol. 22 N° 11. Minerals engineering - Octobre 2009
| Titre : | Minerals engineering : an international journal devoted to innovation and developments in mineral processing and extractive metallurgy, Vol. 22 N° 11. Minerals engineering - Octobre 2009 |
| Type de document : | Bulletin |
| Paru le : | 15/11/2009 |
Dépouillements
Article : texte imprimé
Jiliang Xia, Auteur ;
Antti Rinne, Auteur ;
Sami Grönstrand, Auteur
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The present paper describes a comparative study of three turbulence models in predicting flows in an Outotec flotation cell. Detailed flow performance and pressure distributions are presented. Results show that two main recirculation zones are f[...]
Article : texte imprimé
C.T. Jayasundara, Auteur ;
R.Y. Yang, Auteur ;
B.Y. Guo, Auteur
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IsaMill™ is a high-speed stirred mill for a range of milling duties from ultra-fine to relatively coarse grinding in the mineral processing industry. This work investigated particle and slurry flow in a mill using a combined Discrete Element Met[...]
Article : texte imprimé
A mathematical model is developed to study the coal-medium flow in a dense medium cyclone (DMC) of 1000 mm body diameter. In the model, the motion of coal particles is obtained using the Discrete Element Method (DEM) facilitated with the concept[...]
Article : texte imprimé
K. J. Dong, Auteur ;
A. B. Yu, Auteur ;
I. Brake, Auteur
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Banana screen is an important innovation in screening process in the past decades to improve screen capacity. Although, it is increasingly employed in the mineral industry, the control and optimisation are still limited due to the lack of fundam[...]
Article : texte imprimé
K. J. Dong, Auteur ;
R. P. Zou, Auteur ;
R.Y. Yang, Auteur
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This paper presents a DEM study of cake formation and growth in sedimentation and filtration processes with constant flow rate or pressure. The liquid flow is assumed to be one-dimensional and the motion of particles is three-dimensional. Variou[...]
Article : texte imprimé
A mathematical approach is proposed to describe the multiphase flow in a 1000 mm industrial dense medium cyclone. A mixture multiphase model is employed to describe the flow of the dense medium (comprising finely ground magnetite contaminated wi[...]
Article : texte imprimé
C. W. Bakker, Auteur ;
C.J. Meyer, Auteur ;
D.A. Deglon, Auteur
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Certain mineral slurries used in the minerals processing industry have been shown to exhibit non-Newtonian rheologies, particularly with finer particle sizes and at higher solid concentrations. Research has also shown that a cavern containing yi[...]
Article : texte imprimé
Javier Vilcáez, Auteur ;
Chihiro Inoue, Auteur
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Previous studies have shown that the different preferences of thermophiles to oxidize S0 or Fe2+ is reflected by different [Fe3+]/[Fe2+] levels in solution. In those studies it was concluded that [Fe3+]/[Fe2+] governs the thermophilic bioleachin[...]
Article : texte imprimé
Spontaneous inter-particle percolation is a very important phenomenon related to the mixing/segregation of particulate materials. Many studies have been conducted to understand the mechanisms governing the percolation behaviours in the past. How[...]
Article : texte imprimé
E. Jorjani, Auteur ;
H. Asadollahi Poorali, Auteur ;
A. Sam, Auteur
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In this paper, the combustible value (i.e. 100-Ash) and combustible recovery of coal flotation concentrate were predicted by regression and artificial neural network based on proximate and group macerals analysis. The regression method shows tha[...]
Article : texte imprimé
C.A. Pickles, Auteur
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Electric arc furnace (EAF) dust is produced when automobile scrap is remelted in an electric arc furnace and about 10–20 kilograms are generated per ton of steel. The major elements present in the dust are usually zinc, iron and calcium with sma[...]
Article : texte imprimé
This paper presents an experimental and numerical study of the gouge formation related to burden distribution in a BF. Physical experiments are conducted using a simplified bell-less charging model. The results indicate that the burden distribut[...]
Article : texte imprimé
J. J. Bezuidenhout, Auteur ;
J.J. Eksteen, Auteur ;
S. M. Bradshaw, Auteur
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A complete three-dimensional computational fluid dynamic model has been developed to investigate the internal dynamics of a circular, three-phase electrical furnace as used for the smelting of Platinum Group Metal (PGM) concentrates. The model i[...]
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