Les Inscriptions à la Bibliothèque sont ouvertes en
ligne via le site: https://biblio.enp.edu.dz
Les Réinscriptions se font à :
• La Bibliothèque Annexe pour les étudiants en
2ème Année CPST
• La Bibliothèque Centrale pour les étudiants en Spécialités
A partir de cette page vous pouvez :
Retourner à l'écran de résultat de la dernière recherche | Consulter l'historique des recherches | Retourner au premier écran avec les recherches... |
Détail de l'indexation
622 : Industrie minière
622.05
622.2 Industrie minière. Exploration, préparation, découverte, développement des gisements miniers
622.279 Extraction de gaz naturel (hydrocarbures gazeux)
622.324 Gaz. Gaz naturel. Méthane. Dioxyde de carbone. Gaz inertes, rares ou nobles (par ex. hélium)
622.7 Préparation, traitement de minerais
622/549
622/658
622/665
622/669
622.2 Industrie minière. Exploration, préparation, découverte, développement des gisements miniers
622.279 Extraction de gaz naturel (hydrocarbures gazeux)
622.324 Gaz. Gaz naturel. Méthane. Dioxyde de carbone. Gaz inertes, rares ou nobles (par ex. hélium)
622.7 Préparation, traitement de minerais
622/549
622/658
622/665
622/669
Ouvrages de la bibliothèque en indexation 622
Affiner la rechercheThe effect of hydrodynamic parameters on probability of bubble–particle collision and attachment / B. Shahbazi in Minerals engineering, Vol. 22 N° 1 (Janvier 2009)
[article]
in Minerals engineering > Vol. 22 N° 1 (Janvier 2009) . - pp. 57–63
Titre : The effect of hydrodynamic parameters on probability of bubble–particle collision and attachment Type de document : texte imprimé Auteurs : B. Shahbazi, Auteur ; B. Rezai, Auteur ; S. M. Javad Koleini, Auteur Année de publication : 2009 Article en page(s) : pp. 57–63 Note générale : Génie Minier Langues : Anglais (eng) Mots-clés : Flotation Coarse particle Dimensionless parameters Collision Attachment Index. décimale : 622 Industrie minière Résumé : In this study the dependence of the impeller speed on the particle size variation was investigated on the quartz particles using laboratory mechanical flotation cell. Maximum recovery was obtained at 1100 rpm. For either more quiescent (impeller speed <900 rpm) or more turbulent (impeller speed >1300 rpm) conditions, flotation recovery decreased steadily. Furthermore, amount of collision probabilities is calculated using various equations. According to this study, maximum collision probability was obtained around 48.35% with impeller speed of 1100 rpm, air flow rate of 15 l/h and particle size of 545 μm and minimum collision probability was obtained around 2.43% with impeller speed of 700 rpm, air flow rate of 15 l/h and particle size of 256 μm. Maximum attachment probability was obtained around 44.16% with impeller speed of 1300 rpm, air flow rate of 75 l/h and particle size of 256 μm. With using some frothers such as poly propylene glycol, MIBC and pine oil, probability of collision increased, respectively. Maximum collision probability was obtained around 65.46% with poly propylene glycol dosage of 75 g/t and particle size of 545 μm. DEWEY : 622 ISSN : 0892-6875 En ligne : http://www.sciencedirect.com/science/article/pii/S0892687508000812 [article] The effect of hydrodynamic parameters on probability of bubble–particle collision and attachment [texte imprimé] / B. Shahbazi, Auteur ; B. Rezai, Auteur ; S. M. Javad Koleini, Auteur . - 2009 . - pp. 57–63.
Génie Minier
Langues : Anglais (eng)
in Minerals engineering > Vol. 22 N° 1 (Janvier 2009) . - pp. 57–63
Mots-clés : Flotation Coarse particle Dimensionless parameters Collision Attachment Index. décimale : 622 Industrie minière Résumé : In this study the dependence of the impeller speed on the particle size variation was investigated on the quartz particles using laboratory mechanical flotation cell. Maximum recovery was obtained at 1100 rpm. For either more quiescent (impeller speed <900 rpm) or more turbulent (impeller speed >1300 rpm) conditions, flotation recovery decreased steadily. Furthermore, amount of collision probabilities is calculated using various equations. According to this study, maximum collision probability was obtained around 48.35% with impeller speed of 1100 rpm, air flow rate of 15 l/h and particle size of 545 μm and minimum collision probability was obtained around 2.43% with impeller speed of 700 rpm, air flow rate of 15 l/h and particle size of 256 μm. Maximum attachment probability was obtained around 44.16% with impeller speed of 1300 rpm, air flow rate of 75 l/h and particle size of 256 μm. With using some frothers such as poly propylene glycol, MIBC and pine oil, probability of collision increased, respectively. Maximum collision probability was obtained around 65.46% with poly propylene glycol dosage of 75 g/t and particle size of 545 μm. DEWEY : 622 ISSN : 0892-6875 En ligne : http://www.sciencedirect.com/science/article/pii/S0892687508000812 The influence of particle shape on parameters of impact crushing / G. Unland in Minerals engineering, Vol. 22 N° 3 (Fevrier 2009)
[article]
in Minerals engineering > Vol. 22 N° 3 (Fevrier 2009) . - pp. 220–228
Titre : The influence of particle shape on parameters of impact crushing Type de document : texte imprimé Auteurs : G. Unland, Auteur ; Y. Al-Khasawneh, Auteur Année de publication : 2009 Article en page(s) : pp. 220–228 Note générale : Génie Minier Langues : Anglais (eng) Mots-clés : Crushing Impact Particle shape Index. décimale : 622 Industrie minière Résumé : 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 transferred energy, the fragment size and shape distribution as well as the energy utilization. The particles tested were classified in seven different shape classes that ranged from spheres and cubes to plate-shaped and acicular bodies. The results show that the measured parameters are significantly influenced by the particle shape. These differences are caused by an additional orientation phase of an irregularly shaped particle prior to the main impact. Usually, the impact bar of the crusher hits one of the corners first, accelerates, rotates the particle and disintegrates a part of it occasionally.
For spherical and cubical particles the contact forces and transferred energy are the highest and the contact time is the lowest. These results suggest that the mechanical design of impact crushers could be made on the basis of testing spheres or cubes, which would provide a safety factor in the design. Regarding the size distribution of the fragments, both the upper diameter and size modulus of a truncated Rosin–Rammler–Sperling–Bennet distribution are the lowest for spherical particles while no clear trend was found in respect to the distribution modulus. The comparison of the fragment shape distributions shows, except for the coarser fragments, hardly an influence of the initial particle shape on the smaller fragments. The energy utilization is the lowest with spherical and cubical bodies and rises with increased elongation and flatness of the feed particles.DEWEY : 622 ISSN : 0892-6875 En ligne : http://www.sciencedirect.com/science/article/pii/S0892687508002094 [article] The influence of particle shape on parameters of impact crushing [texte imprimé] / G. Unland, Auteur ; Y. Al-Khasawneh, Auteur . - 2009 . - pp. 220–228.
Génie Minier
Langues : Anglais (eng)
in Minerals engineering > Vol. 22 N° 3 (Fevrier 2009) . - pp. 220–228
Mots-clés : Crushing Impact Particle shape Index. décimale : 622 Industrie minière Résumé : 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 transferred energy, the fragment size and shape distribution as well as the energy utilization. The particles tested were classified in seven different shape classes that ranged from spheres and cubes to plate-shaped and acicular bodies. The results show that the measured parameters are significantly influenced by the particle shape. These differences are caused by an additional orientation phase of an irregularly shaped particle prior to the main impact. Usually, the impact bar of the crusher hits one of the corners first, accelerates, rotates the particle and disintegrates a part of it occasionally.
For spherical and cubical particles the contact forces and transferred energy are the highest and the contact time is the lowest. These results suggest that the mechanical design of impact crushers could be made on the basis of testing spheres or cubes, which would provide a safety factor in the design. Regarding the size distribution of the fragments, both the upper diameter and size modulus of a truncated Rosin–Rammler–Sperling–Bennet distribution are the lowest for spherical particles while no clear trend was found in respect to the distribution modulus. The comparison of the fragment shape distributions shows, except for the coarser fragments, hardly an influence of the initial particle shape on the smaller fragments. The energy utilization is the lowest with spherical and cubical bodies and rises with increased elongation and flatness of the feed particles.DEWEY : 622 ISSN : 0892-6875 En ligne : http://www.sciencedirect.com/science/article/pii/S0892687508002094 The influence of rock characteristics on acid leach extraction and re-extraction of Cu-oxide and sulfide minerals / S. Helle in Minerals engineering, Vol. 23 N° 1 (Janvier 2010)
[article]
in Minerals engineering > Vol. 23 N° 1 (Janvier 2010) . - pp. 45-50
Titre : The influence of rock characteristics on acid leach extraction and re-extraction of Cu-oxide and sulfide minerals Type de document : texte imprimé Auteurs : S. Helle, Auteur ; O. Jerez, Auteur ; U. Kelm, Auteur Article en page(s) : pp. 45-50 Note générale : Génie Minier Métallurgie Langues : Anglais (eng) Mots-clés : Leaching Reactive gangue Copper ore Index. décimale : 622 Industrie minière Résumé : The response of Cu-oxide and sulfide ores is studied by the leaching of sulfuric acid.
Exotic and supergenic enrichment samples were contrasted by assaying three Chilean copper deposits in order to develop a predictive methodology of the industrial process.
The mineralogical and chemical characteristics of the ores were described, including clay-size fraction X-ray diffraction, cation exchange capacity and hydraulic conductivity.
Leaching experiments included the re-extraction of Cu remaining in the heap and were performed in stages of rinsing and elution in order to quantify the Cu physically or chemically retained in the residues.
The integral characterization and the assays permit to predict the leaching behavior of the studied units and make possible the necessary blend of them in the industrial process.
A relevant conclusion was to confirm that the removal of clay minerals from the rock framework during leaching is dependent of the rock texture which resulted as the limiting variable for the final copper liberation or retention.DEWEY : 622 ISSN : 0892-6875 En ligne : http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VDR-4XDKC9K-1&_user=6 [...] [article] The influence of rock characteristics on acid leach extraction and re-extraction of Cu-oxide and sulfide minerals [texte imprimé] / S. Helle, Auteur ; O. Jerez, Auteur ; U. Kelm, Auteur . - pp. 45-50.
Génie Minier Métallurgie
Langues : Anglais (eng)
in Minerals engineering > Vol. 23 N° 1 (Janvier 2010) . - pp. 45-50
Mots-clés : Leaching Reactive gangue Copper ore Index. décimale : 622 Industrie minière Résumé : The response of Cu-oxide and sulfide ores is studied by the leaching of sulfuric acid.
Exotic and supergenic enrichment samples were contrasted by assaying three Chilean copper deposits in order to develop a predictive methodology of the industrial process.
The mineralogical and chemical characteristics of the ores were described, including clay-size fraction X-ray diffraction, cation exchange capacity and hydraulic conductivity.
Leaching experiments included the re-extraction of Cu remaining in the heap and were performed in stages of rinsing and elution in order to quantify the Cu physically or chemically retained in the residues.
The integral characterization and the assays permit to predict the leaching behavior of the studied units and make possible the necessary blend of them in the industrial process.
A relevant conclusion was to confirm that the removal of clay minerals from the rock framework during leaching is dependent of the rock texture which resulted as the limiting variable for the final copper liberation or retention.DEWEY : 622 ISSN : 0892-6875 En ligne : http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VDR-4XDKC9K-1&_user=6 [...] The use of collectors mixture in the reverse cationic flotation of magnetite ore / L. O. Filippov in Minerals engineering, Vol. 23 N° 2 (Janvier 2010)
[article]
in Minerals engineering > Vol. 23 N° 2 (Janvier 2010) . - pp. 91-98
Titre : The use of collectors mixture in the reverse cationic flotation of magnetite ore : the role of Fe-bearing silicates Type de document : texte imprimé Auteurs : L. O. Filippov, Auteur ; I. V. Filippova, Auteur ; V. V. Severov, Auteur Article en page(s) : pp. 91-98 Note générale : Génie Minier Métallurgie Langues : Anglais (eng) Mots-clés : Iron ores Amphiboles Reverse flotation Zeta-potential Etheramines Index. décimale : 622 Industrie minière Résumé : The paper describes effective reagent combinations for removal of silicates by reverse cationic flotation from magnetic concentrate in magnetite ores processing.
This work is based on a hypothesis that a further development in reverse cationic flotation of iron ores implies, a more detailed consideration of the nature of the Fe-bearing gangue minerals.
Thus, the choice of reagent regime has been determined by the similar physicochemical properties of iron oxides and silicates such as amphiboles due to inclusion of iron into their crystal lattice.
Zeta-potential studies of Fe-oxides, quartz and Fe-bearing amphibole samples have shown that amines of different molecular structure are equally well adsorbed both on the surface of Fe-oxides and on the surface of silicates within рН range of 4–10.
Flotation studies of quartz and Fe-bearing amphibole samples have revealed that the use of starch as a depressant of Fe-oxides has a hydrophilic effect on the surface of Fe-bearing silicates and significantly decreases their flotation by ether amines.
Flotation of these minerals is not possible by primary monoamines in the presence of starch due to the adsorption layer formation.
The experimentally selected mixtures of ether amines with primary monoamines or with alcohols provide formation of a hydrophobic adsorption layer on the surface of amphiboles and magnetite–silicate aggregates, even in the presence of starch in the system.
A total hydrophobic effect is sufficient for an effective flotation of the entire silicate complex and producing of magnetite concentrates with SiO2 content <1.0% and Fe content up to 70.3% from magnetic concentrate with SiO2 content not, vert, similar3%.DEWEY : 622 ISSN : 0892-6875 En ligne : http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VDR-4XDKC9K-1&_user=6 [...] [article] The use of collectors mixture in the reverse cationic flotation of magnetite ore : the role of Fe-bearing silicates [texte imprimé] / L. O. Filippov, Auteur ; I. V. Filippova, Auteur ; V. V. Severov, Auteur . - pp. 91-98.
Génie Minier Métallurgie
Langues : Anglais (eng)
in Minerals engineering > Vol. 23 N° 2 (Janvier 2010) . - pp. 91-98
Mots-clés : Iron ores Amphiboles Reverse flotation Zeta-potential Etheramines Index. décimale : 622 Industrie minière Résumé : The paper describes effective reagent combinations for removal of silicates by reverse cationic flotation from magnetic concentrate in magnetite ores processing.
This work is based on a hypothesis that a further development in reverse cationic flotation of iron ores implies, a more detailed consideration of the nature of the Fe-bearing gangue minerals.
Thus, the choice of reagent regime has been determined by the similar physicochemical properties of iron oxides and silicates such as amphiboles due to inclusion of iron into their crystal lattice.
Zeta-potential studies of Fe-oxides, quartz and Fe-bearing amphibole samples have shown that amines of different molecular structure are equally well adsorbed both on the surface of Fe-oxides and on the surface of silicates within рН range of 4–10.
Flotation studies of quartz and Fe-bearing amphibole samples have revealed that the use of starch as a depressant of Fe-oxides has a hydrophilic effect on the surface of Fe-bearing silicates and significantly decreases their flotation by ether amines.
Flotation of these minerals is not possible by primary monoamines in the presence of starch due to the adsorption layer formation.
The experimentally selected mixtures of ether amines with primary monoamines or with alcohols provide formation of a hydrophobic adsorption layer on the surface of amphiboles and magnetite–silicate aggregates, even in the presence of starch in the system.
A total hydrophobic effect is sufficient for an effective flotation of the entire silicate complex and producing of magnetite concentrates with SiO2 content <1.0% and Fe content up to 70.3% from magnetic concentrate with SiO2 content not, vert, similar3%.DEWEY : 622 ISSN : 0892-6875 En ligne : http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VDR-4XDKC9K-1&_user=6 [...] The use of microscopy techniques to analyze microbial biofilm of the bio-oxidized chalcopyrite surface / Jiang Lei in Minerals engineering, Vol. 22 N° 1 (Janvier 2009)
[article]
in Minerals engineering > Vol. 22 N° 1 (Janvier 2009) . - pp. 37–42
Titre : The use of microscopy techniques to analyze microbial biofilm of the bio-oxidized chalcopyrite surface Type de document : texte imprimé Auteurs : Jiang Lei, Auteur ; Zhou Huaiyang, Auteur ; Peng Xiaotong, Auteur Année de publication : 2009 Article en page(s) : pp. 37–42 Note générale : Génie Minier Langues : Anglais (eng) Mots-clés : Biofilm Chalcopyrite Bio-oxidation Acidithiobacillus ferrooxidans Index. décimale : 622 Industrie minière Résumé : This paper deals with the biofilm formed on the surfaces of chalcopyrite during the bio-oxidation process, with microscopy techniques (scanning electron microscope, fluorescence stereo microscope and transmission electron microscope) and in situ chemical analyzes (energy dispersive spectrometer). SEM images showed that this type of structured community of Acidithiobacillus ferrooxidans was made up of some bacteria and floccules. Moreover, TEM images indicated that these bacteria were wrapped by EPS. However, almost no EPS can be found in the suspending bacteria in the solution. In addition, large amounts of jarosite and element sulfur were determined in the bio-oxidation process, and the biofilm was covered with the deposition. DEWEY : 622 ISSN : 0892-6875 En ligne : http://www.sciencedirect.com/science/article/pii/S0892687508000794 [article] The use of microscopy techniques to analyze microbial biofilm of the bio-oxidized chalcopyrite surface [texte imprimé] / Jiang Lei, Auteur ; Zhou Huaiyang, Auteur ; Peng Xiaotong, Auteur . - 2009 . - pp. 37–42.
Génie Minier
Langues : Anglais (eng)
in Minerals engineering > Vol. 22 N° 1 (Janvier 2009) . - pp. 37–42
Mots-clés : Biofilm Chalcopyrite Bio-oxidation Acidithiobacillus ferrooxidans Index. décimale : 622 Industrie minière Résumé : This paper deals with the biofilm formed on the surfaces of chalcopyrite during the bio-oxidation process, with microscopy techniques (scanning electron microscope, fluorescence stereo microscope and transmission electron microscope) and in situ chemical analyzes (energy dispersive spectrometer). SEM images showed that this type of structured community of Acidithiobacillus ferrooxidans was made up of some bacteria and floccules. Moreover, TEM images indicated that these bacteria were wrapped by EPS. However, almost no EPS can be found in the suspending bacteria in the solution. In addition, large amounts of jarosite and element sulfur were determined in the bio-oxidation process, and the biofilm was covered with the deposition. DEWEY : 622 ISSN : 0892-6875 En ligne : http://www.sciencedirect.com/science/article/pii/S0892687508000794 Thiosulphate leaching of gold in the presence of ethylenediaminetetraacetic acid (EDTA) / D. Feng in Minerals engineering, Vol. 23 N° 2 (Janvier 2010)
PermalinkUpscaling laboratory results for water quality prediction at underground collieries in South Africa’s Highveld Coalfields / Brent Herbert Usher in Minerals engineering, Vol. 22 N° 1 (Janvier 2009)
PermalinkUse of lignosulfonate for elemental sulfur biooxidation and copper leaching / Sylvie C. Bouffard in Minerals engineering, Vol. 22 N° 1 (Janvier 2009)
PermalinkUtilization of electrochemical impedance spectroscopy for monitoring bornite (Cu5FeS4) oxidation by Acidithiobacillus ferrooxidans / Denise Bevilaqua in Minerals engineering, Vol. 22 N° 3 (Fevrier 2009)
PermalinkValidation of the generalised Sutherland equation for bubble–particle encounter efficiency in flotation / Phong T. Nguyen in Minerals engineering, Vol. 22 N° 2 (Janvier 2009)
Permalink