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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 rechercheEffectiveness of iron reducing bacteria for the removal of iron from bauxite ores / Nymphodora Papassiopi in Minerals engineering, Vol. 23 N° 1 (Janvier 2010)
[article]
in Minerals engineering > Vol. 23 N° 1 (Janvier 2010) . - pp. 25-31
Titre : Effectiveness of iron reducing bacteria for the removal of iron from bauxite ores Type de document : texte imprimé Auteurs : Nymphodora Papassiopi, Auteur ; Katerina Vaxevanidou, Auteur ; Ioannis Paspaliaris, Auteur Article en page(s) : pp. 25-31 Note générale : Génie Minier Métallurgie Langues : Anglais (eng) Mots-clés : Biobeneficiation Bauxites Iron reducing bacteria (IRB) Index. décimale : 622 Industrie minière Résumé : Current study investigates the possibility of obtaining the removal of iron from bauxite ores, by exploiting the metabolism of iron reducing microorganisms.
The experiments were carried out using the microorganism Desulfuromonas palmitatis.
The effectiveness of the treatment was evaluated on six different bauxite samples, containing the alumina oxide in the form of diaspore or boehmite.
The Fe2O3 content of the samples varied between 16.3% and 22.3% and occurred mainly in the form of goethite or hematite, with one sample containing also chamosite.
For comparison reasons the same treatment was also applied on three samples of synthetic Fe(III)-oxides, namely ferrihydrite, goethite and hematite.
The removal of iron from the six bauxite samples was found to vary between 7% and 29% and the highest extraction corresponded to the sample containing the Fe(II) rich compound, chamosite.
The bioavailability of Fe in the three synthetic oxides was highly dependant on their crystallinity.
The amorphous ferrihydrite was almost completely dissolved, up to 95%, whereas dissolution of crystalline goethite and hematite did not exceed 9% and 1.2% respectively.DEWEY : 622 ISSN : 0892-6875 En ligne : http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VDR-4XDKC9K-1&_user=6 [...] [article] Effectiveness of iron reducing bacteria for the removal of iron from bauxite ores [texte imprimé] / Nymphodora Papassiopi, Auteur ; Katerina Vaxevanidou, Auteur ; Ioannis Paspaliaris, Auteur . - pp. 25-31.
Génie Minier Métallurgie
Langues : Anglais (eng)
in Minerals engineering > Vol. 23 N° 1 (Janvier 2010) . - pp. 25-31
Mots-clés : Biobeneficiation Bauxites Iron reducing bacteria (IRB) Index. décimale : 622 Industrie minière Résumé : Current study investigates the possibility of obtaining the removal of iron from bauxite ores, by exploiting the metabolism of iron reducing microorganisms.
The experiments were carried out using the microorganism Desulfuromonas palmitatis.
The effectiveness of the treatment was evaluated on six different bauxite samples, containing the alumina oxide in the form of diaspore or boehmite.
The Fe2O3 content of the samples varied between 16.3% and 22.3% and occurred mainly in the form of goethite or hematite, with one sample containing also chamosite.
For comparison reasons the same treatment was also applied on three samples of synthetic Fe(III)-oxides, namely ferrihydrite, goethite and hematite.
The removal of iron from the six bauxite samples was found to vary between 7% and 29% and the highest extraction corresponded to the sample containing the Fe(II) rich compound, chamosite.
The bioavailability of Fe in the three synthetic oxides was highly dependant on their crystallinity.
The amorphous ferrihydrite was almost completely dissolved, up to 95%, whereas dissolution of crystalline goethite and hematite did not exceed 9% and 1.2% respectively.DEWEY : 622 ISSN : 0892-6875 En ligne : http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VDR-4XDKC9K-1&_user=6 [...] Effects of intensive grinding on the dissolution of celestite in acidic chloride medium / Murat Erdemoğlu in Minerals engineering, Vol. 22 N° 1 (Janvier 2009)
[article]
in Minerals engineering > Vol. 22 N° 1 (Janvier 2009) . - pp. 14–24
Titre : Effects of intensive grinding on the dissolution of celestite in acidic chloride medium Type de document : texte imprimé Auteurs : Murat Erdemoğlu, Auteur ; Salih Aydoğan, Auteur ; Eberhard Gock, Auteur Année de publication : 2009 Article en page(s) : pp. 14–24 Note générale : Génie Minier Langues : Anglais (eng) Mots-clés : Celestite Dissolution Intensive grinding Planetary ball mill Index. décimale : 622 Industrie minière Résumé : Effect of intensive grinding on the dissolution of celestite in acidic barium chloride and sodium chloride solutions was studied by investigating structural changes occurred during milling. Complete dissolution of the celestite was achieved within 25 min by milling in a planetary ball mill in which ball to ore ratio is 10. But, increasing grinding time and ball to ore ratio diminished the dissolution rate. X-ray amorphous phase content and XRD breadths increased and XRD line reflection intensity decreased with increasing of grinding time, and celestite does not undergo a considerable phase transformation during milling. SEM micrographs showed that how prolonged milling results in an increasing degree of agglomeration and a reduced amount of fines. Additionally, the ground samples were heated at elevated temperatures and then re-ground under earlier grinding conditions. Structural, morphological and dissolution characteristics of the samples obtained by each of the three treatments were also evaluated. It was concluded that high energy milling for short times increases the dissolution rate of celestite. But, increase in the particle size due to agglomeration or compactness of the particles as a result of impact stress predominant in planetary ball milling decreased the leaching rate, as grinding time and ball to ore ratio in the mill were increased. DEWEY : 622 ISSN : 0892-6875 En ligne : http://www.sciencedirect.com/science/article/pii/S0892687508000733 [article] Effects of intensive grinding on the dissolution of celestite in acidic chloride medium [texte imprimé] / Murat Erdemoğlu, Auteur ; Salih Aydoğan, Auteur ; Eberhard Gock, Auteur . - 2009 . - pp. 14–24.
Génie Minier
Langues : Anglais (eng)
in Minerals engineering > Vol. 22 N° 1 (Janvier 2009) . - pp. 14–24
Mots-clés : Celestite Dissolution Intensive grinding Planetary ball mill Index. décimale : 622 Industrie minière Résumé : Effect of intensive grinding on the dissolution of celestite in acidic barium chloride and sodium chloride solutions was studied by investigating structural changes occurred during milling. Complete dissolution of the celestite was achieved within 25 min by milling in a planetary ball mill in which ball to ore ratio is 10. But, increasing grinding time and ball to ore ratio diminished the dissolution rate. X-ray amorphous phase content and XRD breadths increased and XRD line reflection intensity decreased with increasing of grinding time, and celestite does not undergo a considerable phase transformation during milling. SEM micrographs showed that how prolonged milling results in an increasing degree of agglomeration and a reduced amount of fines. Additionally, the ground samples were heated at elevated temperatures and then re-ground under earlier grinding conditions. Structural, morphological and dissolution characteristics of the samples obtained by each of the three treatments were also evaluated. It was concluded that high energy milling for short times increases the dissolution rate of celestite. But, increase in the particle size due to agglomeration or compactness of the particles as a result of impact stress predominant in planetary ball milling decreased the leaching rate, as grinding time and ball to ore ratio in the mill were increased. DEWEY : 622 ISSN : 0892-6875 En ligne : http://www.sciencedirect.com/science/article/pii/S0892687508000733
[périodique]
Titre : Euro abstracts: Section two : Coal and steel Type de document : texte imprimé Auteurs : Scherff, H. L., Directeur de publication, rédacteur en chef ; Office for Official Publications of the European Communitie, Editeur scientifique ; Jay, B., Editeur scientifique Editeur : Luxembourg [Belgique] : Office for Official Publications of the European Communitie Année de publication : 1975- ISBN/ISSN/EAN : 0378-3472 Note générale : Périodicité : Mensuelle
1977-1984Langues : Anglais (eng) Mots-clés : Acier ; Charbon Index. décimale : 622 Industrie minière DEWEY : 001.4 RAMEAU : Euro abstracts section two En ligne : http://www.sudoc.abes.fr/DB=2.1/SET=1/TTL=2/CLK?IKT=12&TRM=039555313 [périodique] Euro abstracts: Section two : Coal and steel [texte imprimé] / Scherff, H. L., Directeur de publication, rédacteur en chef ; Office for Official Publications of the European Communitie, Editeur scientifique ; Jay, B., Editeur scientifique . - Luxembourg (4611 Assembly Dr. Lanham MD, L-2985, Belgique) : Office for Official Publications of the European Communitie, 1975-.
ISSN : 0378-3472
Périodicité : Mensuelle
1977-1984
Langues : Anglais (eng)
Mots-clés : Acier ; Charbon Index. décimale : 622 Industrie minière DEWEY : 001.4 RAMEAU : Euro abstracts section two En ligne : http://www.sudoc.abes.fr/DB=2.1/SET=1/TTL=2/CLK?IKT=12&TRM=039555313 Evaluation of flotation technology for the trona industry / O. Ozdemir in Minerals engineering, Vol. 23 N° 1 (Janvier 2010)
[article]
in Minerals engineering > Vol. 23 N° 1 (Janvier 2010) . - pp. 1-9
Titre : Evaluation of flotation technology for the trona industry Type de document : texte imprimé Auteurs : O. Ozdemir, Auteur ; A. Jain, Auteur ; V. Gupta, Auteur Article en page(s) : pp. 1-9 Note générale : Génie Minier Métallurgie Langues : Anglais (eng) Mots-clés : Trona Soda ash Soluble minerals Flotation Index. décimale : 622 Industrie minière Résumé : Trona ore consists mainly of trona, sodium sesquicarbonate dihydrate (Na2CO3·NaHCO3·2H2O), including minor undesirable insoluble materials.
With the present industrial practice, there is no particle separation process to remove these insoluble minerals prior to thermochemical processing.
In this current research appropriate conditions for trona flotation technology were established from exploratory bench-scale experiments, and the conditions obtained from the bench-scale experiments were also applied to pilot scale flotation tests.
In this regard various process variables such as amine dosage, flotation percent solids, amine to oil ratio, pH of amine solution, collector structure, brine composition, feed particle size, etc. were studied to establish the preferred conditions and operating variables for pilot-plant testing.
Additional information regarding the mineralogy of the system and collector characteristics is also reported to provide further analysis and explanation.DEWEY : 622 ISSN : 0892-6875 En ligne : http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VDR-4XDKC9K-1&_user=6 [...] [article] Evaluation of flotation technology for the trona industry [texte imprimé] / O. Ozdemir, Auteur ; A. Jain, Auteur ; V. Gupta, Auteur . - pp. 1-9.
Génie Minier Métallurgie
Langues : Anglais (eng)
in Minerals engineering > Vol. 23 N° 1 (Janvier 2010) . - pp. 1-9
Mots-clés : Trona Soda ash Soluble minerals Flotation Index. décimale : 622 Industrie minière Résumé : Trona ore consists mainly of trona, sodium sesquicarbonate dihydrate (Na2CO3·NaHCO3·2H2O), including minor undesirable insoluble materials.
With the present industrial practice, there is no particle separation process to remove these insoluble minerals prior to thermochemical processing.
In this current research appropriate conditions for trona flotation technology were established from exploratory bench-scale experiments, and the conditions obtained from the bench-scale experiments were also applied to pilot scale flotation tests.
In this regard various process variables such as amine dosage, flotation percent solids, amine to oil ratio, pH of amine solution, collector structure, brine composition, feed particle size, etc. were studied to establish the preferred conditions and operating variables for pilot-plant testing.
Additional information regarding the mineralogy of the system and collector characteristics is also reported to provide further analysis and explanation.DEWEY : 622 ISSN : 0892-6875 En ligne : http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VDR-4XDKC9K-1&_user=6 [...] Experimental study of flow patterns in deoiling hydrocyclone / Zhi-shan Bai in Minerals engineering, Vol. 22 N° 4 (Mars 2009)
[article]
in Minerals engineering > Vol. 22 N° 4 (Mars 2009) . - pp. 319–323
Titre : Experimental study of flow patterns in deoiling hydrocyclone Type de document : texte imprimé Auteurs : Zhi-shan Bai, Auteur ; Hua-lin Wang, Auteur ; Shan-Tung Tu, Auteur Année de publication : 2009 Article en page(s) : pp. 319–323 Note générale : Génie Minier Langues : Anglais (eng) Mots-clés : Hydrocyclone Laser Doppler velocimetry Velocity Index. décimale : 622 Industrie minière Résumé : 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. The fluctuation velocities with air core are greater than without air core. The velocity magnitudes are dependent on the inlet flow rate and the flow character is not change by changes in the inlet flow rate in hydrocyclone. The velocity fluctuations are greater near the core and near the wall. The results show that air core in the hydrocyclone will arose turbulence fluctuation. These studies are helpful to understand the separation mechanism of deoiling hydrocyclone. DEWEY : 622 ISSN : 0892-6875 En ligne : http://www.sciencedirect.com/science/article/pii/S0892687508002288 [article] Experimental study of flow patterns in deoiling hydrocyclone [texte imprimé] / Zhi-shan Bai, Auteur ; Hua-lin Wang, Auteur ; Shan-Tung Tu, Auteur . - 2009 . - pp. 319–323.
Génie Minier
Langues : Anglais (eng)
in Minerals engineering > Vol. 22 N° 4 (Mars 2009) . - pp. 319–323
Mots-clés : Hydrocyclone Laser Doppler velocimetry Velocity Index. décimale : 622 Industrie minière Résumé : 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. The fluctuation velocities with air core are greater than without air core. The velocity magnitudes are dependent on the inlet flow rate and the flow character is not change by changes in the inlet flow rate in hydrocyclone. The velocity fluctuations are greater near the core and near the wall. The results show that air core in the hydrocyclone will arose turbulence fluctuation. These studies are helpful to understand the separation mechanism of deoiling hydrocyclone. DEWEY : 622 ISSN : 0892-6875 En ligne : http://www.sciencedirect.com/science/article/pii/S0892687508002288 Extraction of indium from zinc plant residues / S. M. Javad Koleini in Minerals engineering, Vol. 23 N° 1 (Janvier 2010)
PermalinkExtraction of titanium (IV) from acidic media by tri-n-butyl phosphate in kerosene / S. Seyfi in Minerals engineering, Vol. 22 N° 2 (Janvier 2009)
PermalinkFerric leaching of copper slag flotation tailings / F. Carranza in Minerals engineering, Vol. 22 N° 1 (Janvier 2009)
PermalinkFine coal preparation using novel tribo-electrostatic separator / R.K. Dwari in Minerals engineering, Vol. 22 N° 2 (Janvier 2009)
PermalinkFractal evaluation of particle size distributions of chromites in different comminution environments / A. Taşdemir in Minerals engineering, Vol. 22 N° 2 (Janvier 2009)
PermalinkFroth zone characterization of an industrial flotation column in rougher circuit / M. Massinaei in Minerals engineering, Vol. 22 N° 3 (Fevrier 2009)
PermalinkGAS holdup and RTD measurement in an industrial flotation cell / Juan Yianatos in Minerals engineering, Vol. 23 N° 2 (Janvier 2010)
PermalinkGas phase extraction of iron from its oxide in a fluidized bed reactor / L. Van Dyk in Minerals engineering, Vol. 23 N° 1 (Janvier 2010)
PermalinkGeometallurgical modelling of the Collahuasi flotation circuit / C. J. Suazo in Minerals engineering, Vol. 23 N° 2 (Janvier 2010)
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