Academic literature on the topic 'Hydrométallurgie'
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Journal articles on the topic "Hydrométallurgie"
Meux, Eric, N. Leclerc, C. Hazotte, M. Schneider, and F. Lapicque. "Valorisation par voie hydrométallurgique de Matières Premières Secondaires." MATEC Web of Conferences 7 (2013): 03004. http://dx.doi.org/10.1051/matecconf/20130703004.
Full textRATSIMBA, Marie Hanitriniaina, Hoby Sandra RAKOTONDRANALY, and Rijalalaina RAKOTOSAONA. "Valorisation Des Déchets D’équipements Electriques Et Electroniques De Madagascar: Récupération Du Cuivre Issu Des Déchets De Cartes De Circuits Imprimés Par Voie HydrométallurgiqueValorisation Des Déchets D’équipements Electriques Et Electroniques De Madagascar: Récupération Du Cuivre Issu Des Déchets De Cartes De Circuits Imprimés Par Voie Hydrométallurgique." International Journal of Progressive Sciences and Technologies 34, no. 1 (October 4, 2022): 496. http://dx.doi.org/10.52155/ijpsat.v34.1.4562.
Full textVincent, Denis, Emmanuel Billy, and Richard Laucournet. "Récupération du platine contenu dans les piles à combustible basse température par voie hydrométallurgique." MATEC Web of Conferences 7 (2013): 03005. http://dx.doi.org/10.1051/matecconf/20130703005.
Full textBriseul, Jean-Paul. "Nouvelle-Calédonie. / Construction d'un complexe hydrométallurgique destiné au traitement du minerai de nickel. / Exploitation d'un émissaire marin de rejet des effluents de l'usine. / Autorisation, à titre précaire et révocable, d'occupation des dépendances du domaine public. / Indépendance des autorisations d'occupation du DPM et de l'autorisation de rejet d'effluents de l'usine de traitement du minerai. / Zone non située dans le périmètre du « grand lagon sud » qui fait l'objet d'une demande d'inscription au patrimoine mondial de l'UNESCO. Tribunal administratif de Nouvelle-Calédonie, 7 mai 2008, Association Action Biosphère, Association Coordination de défense Sud, nos 0863 et 0868. Avec conclusions." Revue Juridique de l'Environnement 34, no. 3 (2009): 317–27. http://dx.doi.org/10.3406/rjenv.2009.4884.
Full textCHESNÉ, André, and Dominique PAREAU. "Hydrométallurgie." Élaboration et recyclage des métaux, July 1988. http://dx.doi.org/10.51257/a-v1-m2235.
Full textCHAGNES, Alexandre. "Métallurgie extractive - Hydrométallurgie." Métallurgie extractive, June 2022. http://dx.doi.org/10.51257/a-v4-m2235.
Full textBLAZY, Pierre, and El-Aid JDID. "Hydrométallurgie du cuivre." Élaboration et recyclage des métaux, September 2002. http://dx.doi.org/10.51257/a-v1-m2242.
Full textRIZET, Laurent, and Pierre-Emmanuel CHARPENTIER. "Métallurgie extractive - Hydrométallurgie." Élaboration et recyclage des métaux, September 2000. http://dx.doi.org/10.51257/a-v3-m2235.
Full textRIZET, Laurent, and Pierre-Emmanuel CHARPENTIER. "Métallurgie extractive Hydrométallurgie." Élaboration et recyclage des métaux, June 2000. http://dx.doi.org/10.51257/a-v2-m2235.
Full textLeclerc, Nathalie, Éric Meux, and Jean Marie Lecuire. "Recherche d’un procédé hydrométallurgique de valorisation des poussières d’aciérie électrique." Déchets, sciences et techniques, no. 23 (2001). http://dx.doi.org/10.4267/dechets-sciences-techniques.1373.
Full textDissertations / Theses on the topic "Hydrométallurgie"
Saoud, El Mustapha. "Modélisation de l'extraction du cuivre et du cobalt en milieu chlorure par le chlorure de tri-iso-octylammonium." Lille 1, 1989. http://www.theses.fr/1989LIL10090.
Full textComel, Julien. "L’acide phytique : réactif de précipitation bio-sourcé pour une hydrométallurgie verte." Electronic Thesis or Diss., Université de Lorraine, 2021. http://www.theses.fr/2021LORR0067.
Full textAlthough many agro-resources reagents have already been studied for potential use in hydrometallurgy, very few have found industrial application. The possibility of using phytic acid as a selective precipitation reagent was investigated in this work. This acid, which is the main source of phosphorus present in cereals, is considered as an antinutritional agent, which is eliminated by simple water soaking. The precipitation of five metal cations (Al³⁺, Fe³⁺, Pb²⁺, Cu²⁺, and Zn²⁺) was studied, the first three metals being often considered undesirable in hydrometallurgy. First, the formulae of the metal phytates were established (Al₃C₆H9P₆O₂₄,7H₂O, Fe7C1₂H15P1₂O₄₈,15H₂O, Pb₆C₆H₆P₆O₂₄,10H₂O, Cu₆C₆H₆P₆O₂₄,8H₂O, Zn₆C₆H₆P₆O₂₄,6H₂O). Then, the solubility of these compounds was determined in water at 20°C to determine their solubility product and establish their conditional solubility diagram to consider two possible study cases: iron removal in calcine leachate (zinc hydrometallurgy) and removal of Fe³⁺, Al³⁺ and Pb²⁺ in nitric leachates from printed circuit board. These separations were optimized using design of experiment methodology. In both cases, only pH influences precipitation. In the case of the Iron/Zinc mixture, it is possible to remove more than 99,6 % of the trivalent iron with less than 0,6 % of the zinc co-precipitated. In the second case, a two-step precipitation allows to remove 100 % of the iron, 99 % of the aluminum, 98 % of lead with less than 2 % copper loss. Fe/Zn separation was studied at the pilot step. The results confirmed those obtained at the laboratory step. A comparison with the three main existing industrial processes demonstrated that phytic acid allowed to obtain better iron removal efficiency and reduced zinc in the precipitate, leading to solid waste with a less environmental impact than jarosite considered as hazardous waste
Desnoyer, Christophe. "Analyse physico-chimique de dispersions liquide-liquide concentrées en electrolytes : application aux procédés d'extraction en hydrométallurgie." Toulouse, INPT, 1998. http://www.theses.fr/1998INPT001G.
Full textArtese, Alexandre. "Caractérisation de ligands N,P pour le raffinage de l'uranium(VI) en milieu nitrique." Thesis, Montpellier, 2019. http://www.theses.fr/2019MONTS067.
Full textRefining plants of natural uranium concentrates use hydrometallurgical processes to produce uranium with a so-called "nuclear" purity. After dissolution in nitric acid to obtain an aqueous solution of uranium(VI), solvent extraction process is used to purify uranium. The commonly used extractant tri-n-butyl phosphate (or TBP) present however some drawbacks (accumulation of thorium, non-concentrating back-extraction, significant solubility in an aqueous phase).The goal of the study is to explore the ability of new N, P bifunctional extractants for the selective extraction of uranium(VI) in nitric media, and to understand the mechanisms involved in the extraction of uranium(VI) as well as in the extraction of the competing element zirconium(IV).Mechanisms underlying solvent extraction processes being not only based on the chelating properties of the extractant molecules, but also on their capacity to form supramolecular aggregates because of their amphiphilic nature, the extraction mechanisms were studied at both molecular and supramolecular scales.Thanks to the understanding of the extraction mechanisms, the difference of separation factor U/Zr obtained with two amidophosphonates extractants which differ only in the presence of a central alkyl chain could be explained. It was shown that this difference takes its origin in the ability of one of the extractants N, P to self-assemble and not in different affinities of the coordinating functions
Gouedard, Véronique. "Le lithium d'Echassières : développement d'un procédé de valorisation de la lépidolite par voie sulfurique." Orléans, 1987. http://www.theses.fr/1987ORLE2035.
Full textManfoumbi, Christian. "Précipitation des gels de silice en solution aqueuse sursaturée à forte acidité : mécanismes et mésostructures, application à la filtrabilité des pulpes dans les procédés hydrométallurgiques." Thesis, Toulouse 3, 2017. http://www.theses.fr/2017TOU30251/document.
Full textThe formation of silica gels in hydrometallurgical processes is very often problematic for the performance of the solid-liquid separation steps, due to clogging of the filters. These steps are carried out downstream of leaching aiming to solubilize the elements of interests, in particular in solutions with strong acidity. Also dissolved during acidic leaching, the silicon then precipitates in the form of silicon oxide and forms gels extremely detrimental to filtration. In collaboration with ERAMET Research, a research center of ERAMET, a french mining group that designs hydrometallurgical processes, we studied the influence of the leaching conditions of a specific ore on the dissolution kinetics of silicon as well as on the mechanisms of precipitation of silica in an acidic solution. We have shown that below a pH value of 2, silica polymerizes to form gels following mechanisms independent of the ionic composition of the solution. Based, on the structural study of the gels, carried out by small angle radiation scattering (SAXS) we proposed a model for the mesotructure, which explain the impact on filtration rates. Subsequently, strategies to modify the mesostructure of the gels by physical or physicochemical approaches were considered. The results have shown the potentialities of these strategies in the short term to improve the filterability of precipitated silica gels in a hydrométallurgical process
Isildar, Arda. "Biological versus chemical leaching of electronic waste for copper and gold recovery." Thesis, Paris Est, 2016. http://www.theses.fr/2016PESC1125/document.
Full textThe well-being of the society depends on a number of metals, including base metals, precious metals and increasingly rare earth elements (REE). The usage of these metals increased in numerous applications, including electrical and electronic equipment (EEE), and their interrupted supply is at stake. There is an increasing interest in the secondary sources of these metals, particularly waste electrical and electronic equipment (WEEE) in order to compensate their potential supply deficit. This PhD thesis demonstrates the advantages and bottlenecks of biological and chemical approaches, as well as the advances and perspectives in the development of sustainable processes for metal recovery from WEEE. Furthermore, a novel process for the recovery of metals from WEEE is described, and a techno-economic assessment is given. Discarded printed circuit boards (PCB) from personal computers (PC), laptops, mobile phones and telecom servers were studied. Following an extensive literature review, a novel characterization and total metal assay method is introduced and applied to waste board materials. Discarded PCB contained metals in the range of (%, by weight): copper (Cu) 17.6 - 39.0, iron (Fe) 0.7 - 7.5, aluminum (Al) 1.0 - 5.5, nickel (Ni) 0.2 - 1.1, zinc (Zn) 0.3 - 1.2, as well as gold (Au) (in ppm) 21 - 320. In addition, multi-criteria analysis (MCA) using the analytical hierarchical process (AHP) methodology is applied for selection of the best-suited technology. A proof-of-concept for a two-step bioleaching extraction was given, in which 98.4% and 44.0% of the Cu and Au, respectively, were extracted. The two-step extraction concept was applied to the chemical leaching of metals from PCB. Cu leaching was carried in an acidic oxidative mixture of H2SO4 and H2O2, whereas Au leaching for carried out by S_2 O_3^(2-) in a NH_4^+ medium, catalyzed by CuSO4. Under the optimized parameters, 99.2% and 96.6% of Cu and Au, respectively, were extracted from the board material. Selective recovery of Cu from the bioleaching leachate using sulfidic precipitation and electrowinning was studied. Cu was selectively recovered on the cathode electrode at a 50 mA current density in 50 minutes, with a 97.8% efficiency and 65.0% purity. The techno-economic analysis and environmental sustainability assessment of the new technology at an early stage of development was investigated
Perrin, Mathilde. "Récupération sélective de métaux à partir des mâchefers d'incinérateurs d'ordures ménagères." Electronic Thesis or Diss., Université Grenoble Alpes, 2023. http://www.theses.fr/2023GRALI118.
Full textThe thesis is part of a European project called Refina focused on the development of innovative processes for the valorization of the fine fraction of municipal waste incinerator bottom ashes. Indeed, the fine fraction of this residue issued from the incineration of our household waste is not valorized in Europe, mainly due its high content in leachable metals. At the same time, the surface of sites available for its landfilling decreases and the landfill costs increase. Moreover, the increase in metals and sand consumption has prompted the interest in this residue, which presents concentrations of certain metals such as copper close to the currently mined low-grade ores (around 0.3 wt%).The project partners worked on three different alternatives of this fine fraction valorization in order to evaluate their feasibility: the physical concentration of metals, the valorization of the solid in lightweight concretes (LWC), and the development of a hydrometallurgical process for recovery of metals of interest. It is this latter part that constitutes the project of this thesis. After characterization of the raw solid, the choice of metals of interest was focused first on copper, followed by zinc. In the case of the concentrated fraction provided by the project partners, nickel and silver recovery could be envisaged too.Firstly, the raw fraction issued directly from the incineration facility was processed by hydrometallurgy with severe constraints regarding the volumes to be treated and the abundance of various accompanying elements and carbonate minerals. In the second part of the thesis, the hydrometallurgical process was adapted to the use of physically pre-concentrated materials at the entry of the process. Finally, the environmental and economic analysis of the complete process developed by all the partners within the Refina project was carried out. The aim is to assess the environmental and economic benefits of the process and identify the areas for improvement. Copper and zinc leaching yields as high as 90% and 70% have been reached respectively both for the raw or the concentrated bottom ashes. Both elements are then recovered under the form of copper metal with a purity of over 99.6%, silver being its major impurity, and as ZnAl2O4 for zinc. Environmental and economic analysis shows that the direct valorization of the fine fraction in concrete is the most economically viable method but has no significant positive impacts on the environment. On the contrary, the recovery of metals in addition to the use of the light mineral fraction in concrete represents a higher economic cost, but generates a greater positive impact on the environment, notably in the resource scarcity impact categories
Noirot, Pierre-Antoine. "Logiciels d'étude et de prévision des extractions par solvants : application à la valorisation des solutions de chlorure de nickel." Lille 1, 1985. http://www.theses.fr/1985LIL10129.
Full textAit, Maamar Rachid. "Systeme expert temps réel pour l'hydrométallurgie des non ferreux." Paris 13, 1996. http://www.theses.fr/1996PA132023.
Full textBooks on the topic "Hydrométallurgie"
Principles of Extractive Metallurgy. Volume 3: Pyrometallurgy. Gordon & Breach, 1986.
Find full textHocheng, Hong, Mital Chakankar, and Umesh Jadhav. Biohydrometallurgical Recycling of Metals from Industrial Wastes. Taylor & Francis Group, 2017.
Find full textBiohydrometallurgical Recycling of Metals from Industrial Wastes. Taylor & Francis Group, 2017.
Find full textHocheng, Hong, Mital Chakankar, and Umesh Jadhav. Biohydrometallurgical Recycling of Metals from Industrial Wastes. Taylor & Francis Group, 2017.
Find full textHocheng, Hong, Mital Chakankar, and Umesh Jadhav. Biohydrometallurgical Recycling of Metals from Industrial Wastes. Taylor & Francis Group, 2017.
Find full textHocheng, Hong, Mital Chakankar, and Umesh Jadhav. Biohydrometallurgical Recycling of Metals from Industrial Wastes. Taylor & Francis Group, 2017.
Find full textBook chapters on the topic "Hydrométallurgie"
GAMBS, Pauline, Marie LEPAGE, and Hervé MUHR. "Récupération et recyclage des métaux contenus dans les DEEE." In Le recyclage, enjeu pour l’économie circulaire, 95–132. ISTE Group, 2023. http://dx.doi.org/10.51926/iste.9162.ch5.
Full textCHAGNES, Alexandre. "Recyclage des matériaux de la transition énergétique par voie hydrométallurgique." In Le recyclage, enjeu pour l’économie circulaire, 69–93. ISTE Group, 2023. http://dx.doi.org/10.51926/iste.9162.ch4.
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