 |
Vol. 22 N° 3 - Minerals engineering Fevrier 2009 |
Vol. 22 N° 2 - Minerals engineering Janvier 2009 |
Vol. 22 N° 1 - Minerals engineering Janvier 2009 |
Vol. 22 N° 4 - Minerals engineering Mars 2009 |
Minerals engineering : an international journal devoted to innovation and developments in mineral processing and extractive metallurgy, Vol. 22 N° 4. Minerals engineering - Mars 2009
| Titre : | Minerals engineering : an international journal devoted to innovation and developments in mineral processing and extractive metallurgy, Vol. 22 N° 4. Minerals engineering - Mars 2009 |
| Type de document : | Bulletin |
| Paru le : | 15/11/2009 |
Dépouillements
Article : texte imprimé
C.P. Massola, Auteur ;
A. P. Chaves, Auteur ;
J.R.B. Lima, Auteur
|
This paper reports an innovative development: concentrating gibbsite via reverse froth flotation in order to obtain a metallurgical-grade bauxite concentrate. Tailings from an industrial plant have undergone attrition scrubbing and desliming; th[...]
Article : texte imprimé
Zhi-shan Bai, Auteur ;
Hua-lin Wang, Auteur ;
Shan-Tung Tu, Auteur
|
Using a two-component laser Doppler velocimeter, the axial velocity, tangential velocity and fluctuation velocity were measured in a 35-mm deoiling hydrocyclone. Air core occurs in the hydrocyclone when inlet flow rate is more than 2.00 m3/h. Th[...]
Article : texte imprimé
O. Alonso-González, Auteur ;
F. Nava-Alonso, Auteur ;
A. Uribe-Salas, Auteur
|
Cyanidation is the most used method to recover gold and silver from their ores. In this process, other metals besides gold and silver may dissolve under certain circumstances and interfere with the efficiency of extraction. Copper is one of thes[...]
Article : texte imprimé
Hudson J. B. Couto, Auteur ;
Daniel G. Nunes, Auteur ;
Reiner Neumann, Auteur
|
The size distribution of microbubbles generated for the dissolved air flotation process could be assessed on a fast and reliable way by the application of laser diffraction technique. The bubble generation step could therefore be optimized, in o[...]
Article : texte imprimé
Silvio Roberto Taffarel, Auteur ;
Jorge Rubio, Auteur
|
This paper describes studies of preparation, activation and physical characterization of a Chilean zeolite (Ch-zeolite) employed as adsorbent for manganese ions from aqueous solutions. The zeolite sample, composed mainly of clinoptilolite and mo[...]
Article : texte imprimé
E. Amini, Auteur ;
M. Oliazadeh, Auteur ;
M. Kolahdoozan, Auteur
|
Froth flotation is commonly used in coal processing to selectively recover the organic material (coal) from inorganic waste material. Tabas coal, located in east Iran, contains fine disseminated pyrite which is floated with coal during flotation[...]
Article : texte imprimé
This article describes a methodology for analyzing zinc in zinc concentrates materials by wavelength-dispersive X-ray fluorescence (WD-XRF) spectrometry with gel for sample preparation. The sample was decomposed with aqua regia. The sample solut[...]
Article : texte imprimé
A.B. Holland-Batt, Auteur
|
In previous work an analysis of the primary flow and secondary circulation on a spiral was developed, based on the use of the Manning equation to describe the flow on the inner part of the spiral and the free vortex equation to characterise the [...]
Article : texte imprimé
M. Massinaei, Auteur ;
M. Kolahdoozan, Auteur ;
M. Noaparast, Auteur
|
In the present investigation the relationship between collection zone rate constant (kc) and gas dispersion parameters, viz. bubble size (db), superficial gas velocity (Jg), gas hold-up (εg) and bubble surface area flux (Sb) was evaluated. Exper[...]
Article : texte imprimé
Felipe Núñez, Auteur ;
Aldo Cipriano, Auteur
|
Image processing sensors are emerging as an important measurement option in mineral processing, mainly due to their non-intrusive characteristics. Their principal application areas have been the determination of ore size distributions in grindin[...]
Article : texte imprimé
Liping Deng, Auteur ;
Yang Zhang, Auteur ;
Qin, Jie, Auteur
|
Biosorption of Cr(VI) from aqueous solutions by nonliving green algae Cladophora albida was investigated in batch experiments. The influence of pH, algal dosage, initial Cr(VI) concentration, temperature and co-existing anions on removal efficie[...]
Article : texte imprimé
I.O. Ogunniyi, Auteur ;
M.K.G. Vermaak, Auteur
|
Froth flotation for beneficiation of printed circuit board comminution fines was investigated in this work, via reverse flotation under a scheme described as natural hydrophobic response. With no reagents, the scheme employed variation of kineti[...]
Article : texte imprimé
Stephen Grano, Auteur
|
This paper examines published and new experimental evidence on the effect of the grinding environment on fine (−10 μm) value mineral recovery in flotation. Reasons for increases in fine value mineral recovery from ores with fully electrochemical[...]
Article : texte imprimé
K. Lee, Auteur ;
D. Archibald, Auteur ;
J. McLean, Auteur
|
Sherwood Copper’s Minto Mine processes a high grade copper–gold deposit in Yukon, Canada. The ore mined is from a primary copper sulphide deposit with separate additional deposits of copper oxides. In conjunction with Ausmelt Chemicals, Minto is[...]
Article : texte imprimé
K.O. Hoal, Auteur ;
J.G. Stammer, Auteur ;
S. K. Appleby, Auteur
|
Developed for the mining industry and applied to oil and gas projects, quantitative mineralogy also has enormous potential as a research tool. The Advanced Mineralogy Research Center at Colorado School of Mines was developed for this purpose, an[...]
Article : texte imprimé
M.W. Ojeda, Auteur ;
E. Perino, Auteur
|
The feasibility to recover the gold present in alluvial material, by means of a chlorination process, using chlorine as a reactive agent, has been studied. The influence of temperature and reaction time was studied through changes in the reactan[...]
Article : texte imprimé
H.P. Pandit, Auteur ;
N.M. Shakya, Auteur ;
H. Stole, Auteur
|
Traditionally, settling basins have been used to exclude suspended sediment in hydropower plants. However, due to the inability of such basins to exclude fine sediment (predominantly hard minerals such as quartz and feldspar) and the excessive s[...]
Article : texte imprimé
J. Temuujin, Auteur ;
K.J.D. MacKenzie, Auteur ;
G. Burmaa, Auteur
|
A study of the mechanochemical activation of molybdenum ore concentrate (MoS2) with sodium peroxide (Na2O2) shows that sodium molybdate dihydrate (Na2MoO4 · 2H2O) is the final crystalline product. The mechanochemical formation of sodium molybdat[...]
Exemplaires(0)
| Disponibilité | ||||
|---|---|---|---|---|
| aucun exemplaire | ||||
