Dissertations / Theses on the topic 'Cuivre i chlorure'
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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 textWeber, Guy. "Contribution a l'étude des conditions de formation du compose Cu::(3)Si par réduction du chlorure cuivreux solide gazeux ou fondu en présence de silicium monocristallin ou polycristallin en poudre : influence de divers additifs : PBCL::(2), MGCL::(2), KCL, ALCL::(3)." Dijon, 1988. http://www.theses.fr/1988DIJOS013.
Full textTomasini, Franco. "Contribution à l'étude des non-linéarités optiques du chlorure de cuivre." Grenoble 2 : ANRT, 1986. http://catalogue.bnf.fr/ark:/12148/cb37601559n.
Full textFALLER, PAUL. "Dynamique des nonlinearites optiques dans les nanocristallites de chlorure de cuivre." Université Louis Pasteur (Strasbourg) (1971-2008), 1994. http://www.theses.fr/1994STR13123.
Full textTomasini, Franco. "Contribution a l'etude des non-linearites optiques de chlorure de cuivre." Université Louis Pasteur (Strasbourg) (1971-2008), 1986. http://www.theses.fr/1986STR13111.
Full textTchoumou, Martin. "Hydrométallurgie du cuivre en milieu chlorure attaques de minerais, dosages polarographiques des solutions, résultats de l'attaque et dépôt cathodique du cuivre /." Grenoble 2 : ANRT, 1986. http://catalogue.bnf.fr/ark:/12148/cb37601463m.
Full textTchoumou, Martin. "Hydrometallurgie du cuivre en milieu chlorure : attaques de minerais dosages polarographiques des solutions resultant de l'attaque et depot cathodique du cuivre." Université Louis Pasteur (Strasbourg) (1971-2008), 1986. http://www.theses.fr/1986STR13154.
Full textMANAR, ABDELKRIM. "Dynamique des proprietes optiques nonlineaires du chlorure de cuivre au voisinage des resonances electroniques." Université Louis Pasteur (Strasbourg) (1971-2008), 1989. http://www.theses.fr/1989STR13054.
Full textGilliot, Pierre. "Etude des non-linearites optiques de microcristaux de chlorure de cuivre disperses dans du verre." Université Louis Pasteur (Strasbourg) (1971-2008), 1990. http://www.theses.fr/1990STR13121.
Full textPardessus, Laurence. "Contribution à l'étude du mécanisme de corrosion du cupronickel en milieu chlorure de sodium à 3%." Aix-Marseille 1, 1986. http://www.theses.fr/1986AIX11005.
Full textKhiati, Zoulikha. "Inhibition de la corrosion du cuivre en milieux chlorure et sulfate neutres par une nouvelle molécule dérivée du 1,2,4-triazole." Paris 6, 2013. http://www.theses.fr/2013PA066222.
Full textInhibition of copper corrosion in 3% NaCl and 0. 5 M Na2SO4 mediums by a novel bis-(4-amino-5-mercapto-1,2,4-triazol-3-yl) butane has been investigated using voltammetry, chronoamperometry and electrochemical impedance spectroscopy. The inhibitor decreases both anodic and cathodic reactions (mixed inhibitor). The measurement of the polarization resistance (Rp) shows an increase in protective rate of the inhibitor as a function of the immersion. The inhibition efficiency exceeds 99%. This inhibitor is more efficient than the benzotriazole. The effect of pH and the addition of KI on the corrosion of copper in these two media alone and with addition of BAMTB were investigated. The inhibitor is very effective in acidic medium. The addition of KI plays a beneficial effect on the protection of copper. The more increase in efficiency is due to a synergistic effect. The surface analysis by Raman spectroscopy, XPS spectroscopy scanning electron microscopy (SEM) and energy dispersive X-ray (EDX) analysis showed the presence of a film of Cu (I)-BAMTB
Martins, Mennucci Marina. "Etude de la corrosion du cuivre en milieu sulfate et chlorure au moyen de la microélectrode à cavité et de la microcellule électrochimique." Paris 6, 2011. http://www.theses.fr/2011PA066039.
Full textViale, Dominique. "Influence de divers additifs ou impuretés, principalement l'aluminium, sur les conditions de formation du compose Cu3Si au cours de la réaction du silicium avec le chlorure cuivreux : rôle de l'épaisseur de la couche de silice sur la réactivité d’une face (100) du silicium." Dijon, 1988. http://www.theses.fr/1988DIJOS041.
Full textMourad, Mahmoud Mahmoud. "Application des solvants eutectiques à basse température pour la valorisation du cuivre par sonoélectrochimie." Thesis, Besançon, 2014. http://www.theses.fr/2014BESA2022.
Full textThe copper is actually an essential element in the industrial world; its consumption and purchase continue to growth because of its major component of printed circuits board and the electronics equipment. It's recycled from the electronic waste; this is the only way to avoid shortage risk. If the copper is easily recycled in aqueous solution, the commercial baths currently in use (cyanide and acid solution) present important environmental risk during their use and their treatments. Several research orientate to a new electrolytes from an ionic liquid, which offer an alternative ecologically viable to the actual solution. In this study we were interested in a recent class of ionic liquid, the eutectic solvent in a low temperature so called Deep eutectic solvent (DES). In fact the DES presents an easy use because there are less sensitive to the water and has a compatible cost for the industrial application in a large scale. If the characteristics physico-chemicals of DES (conductivity, solubilisation of a metallic salt, electrochemical window...) are satisfied to consider the copper recovery, the major inconvenient of these solvent are their higher viscosities which lead to an important reduce of the electrodeposition kinetics and in consequent for lesser efficient process. To avoid this problem the use of ultrasound is a solution to consider. The ultrasound is known to be an effective stirring method to promote mass transport to the electrode and thus the rate of recovery in the DES. It has also an advantage for the metal dissolution. In the first time, our studies were about the characterization of physic-chemical and electrochemical properties of three DES. After this preliminary studies, the mixture of choline chloride (ChCI) and ethylene glycol (EG) appears to be the most appropriate because the whole physic-chemical and electrochemical proprieties will make an electrolyte solution adapted to the recovery of the copper. The second part of this thesis consist of the electrochemical study of the reduction of ions copper (I) and (II) in a Deep Eutectic Solvent (ChCl+EG). To complete this part a comparison with the obtained results in aqueous solvent (Ha 0,01 M) is performed. The mechanism reduction of Cu (II) seems to be in two steps within the DES, but an important modification of the kinetic parameters of these two steps has been seen. During the chemical dissolution of the copper chip in the DES, in addition we discovered that this solvent allowed to stabilize a soluble form Cu(I), which present a considerable advantage in term of Faradic yield for next stage of redeposition. Finally we have determined the kinetic parameters of reaction when we combine an ultrasonic stirring and an increase of the temperature. Rising the temperature at 50c, which allowed reducing the viscosity of the solution, will make more efficient the ultrasonic stirring and the measured coefficient of mass transport are optimum. This study has also allowed us to determine the best experiments conditions elaboration coating of copper and its recovery. To respond to these requirements of global process of copper recovery, we have proceeded in dissolution of metal copper experiments within the DES using the ultrasound to accelerate this step. The leaching of the copper intervenes by corrosion mechanism kinetically limited by the diffusion of the oxidant in the solution, which is accelerated by the ultrasound. In this part of the copper electrodeposition, the deposits elaborated under ultrasound present a thin morphology with a decrease of the grain size. Finally the first recovery experiments, made in a pilot reactor, have been done. The use of ultrasound (20 kHz) permitted to reduce the electrolysis time of 30% to a recovery rate of 90 %
Samson, Yves Edmond. "Etude des propriétés de la surface du siliciure de cuivre Cu3Si : phénomènes de ségrégation superficielle, interaction avec les alcalins sodium et césium, interaction avec le chlorure de méthyle." Lyon 1, 1994. http://www.theses.fr/1994LYO10199.
Full textNEUMANN, RICHARD. "Analyse cinétique de croissances cristallines hors-équilibres : mesure de l'avancée du front et détermination de la structure de croissance ; application aux croissances cristallines de chlorure de cuivre en présence d'impuretés." Université Joseph Fourier (Grenoble), 2000. http://www.theses.fr/2000GRE10016.
Full textLe, Gars Pierre. "Synthese directe de chlorures d'acide par carbonylation de derives halogenes aliphatiques." Toulouse 3, 1987. http://www.theses.fr/1987TOU30199.
Full textFliyou, Mohammed. "Contribution a l'etude des excitons profonds." Université Louis Pasteur (Strasbourg) (1971-2008), 1986. http://www.theses.fr/1986STR13167.
Full textPetkovic, Milan. "Adsorption du benzotriazole sur les électrodes cuivre(111) et cuivre(100) en absence et en présence de chlorures." Sherbrooke : Université de Sherbrooke, 1999.
Find full textFrindi, Mohammed. "Etude dynamique des nonlinearites optiques de cucl en regime impulsionnel nanoseconde." Université Louis Pasteur (Strasbourg) (1971-2008), 1987. http://www.theses.fr/1987STR13116.
Full textDuthil, Jean-Philippe. "Corrosion par piqûres du cuivre : synergie entre les ions chlorures, sulfates et nitrates." Toulouse, INPT, 1994. http://www.theses.fr/1994INPT024G.
Full textGourgouillon, Noëlle. "Influence de divers additifs sur la germination-croissance de la phase Cu3Si formée par réaction Si-CuC." Dijon, 1985. http://www.theses.fr/1985DIJOS057.
Full textSouha, Hammou. "Détermination par thermogravimétrie des principaux facteurs d'action sur la formation du composé Cu3Si à partir de la réaction du silicium et du chlorure cuivreux pulvérulents : role des impuretés et des additifs." Dijon, 1989. http://www.theses.fr/1989DIJOS032.
Full textQafsaoui, Wafaa. "Sensibilité du cuivre pur ou faiblement allié à la germination des piqûres dans des solutions tampons contenant des ions chlorures, sulfates ou nitrates." Toulouse, INPT, 1992. http://www.theses.fr/1992INPT054G.
Full textBeloucif-Bonnet, Luisa. "Comportement à températures élevées du cuivre et de l'argent en présence de chlore gazeux sec et de mélanges chlore-vapeur d'eau." Grenoble 2 : ANRT, 1986. http://catalogue.bnf.fr/ark:/12148/cb375958354.
Full textBeloucif, Bonnet Luisa. "Comportement à températures élevées du cuivre et de l'argent en présence de chlore gazeux sec et de mélanges chlore-vapeur d'eau." Paris 6, 1986. http://www.theses.fr/1986PA066497.
Full textLavigne, André. "Oxydations cupro-catalysees des amines aliphatiques : etudes mecanistiques et applications synthetiques." Paris 6, 1987. http://www.theses.fr/1987PA066470.
Full textAlami, Mouâd. "Addition conjuguee de composes organomanganeux sur divers composes carbonyles alpha -beta ethyleniques." Paris 6, 1987. http://www.theses.fr/1987PA066232.
Full textBoulares, Asma. "Élaboration électrochimique des films composites à base d’oxyhydroxyde de titane et d’oxyde de manganèse TiO(OH)2/MnO2 sur le cuivre. : Caractérisation, propriétés et application anticorrosion en milieu chloruré." Thesis, Bourgogne Franche-Comté, 2019. http://www.theses.fr/2019UBFCD038.
Full textCopper and its alloys are frequently used in heating and cooling plants as well as in electrical and mechanical systems. Despite its semi-noble character, copper undergoes severe corrosion in urban, industrial or marine environments. The use of metallic and polymeric coatings has revealed considerable efficacy against copper corrosion. However, metal oxides and oxyhydroxides coatings haven't yet been used due to their powdery appearance and delicate synthesis.The objective of this work is to electrochemically elaborate composite films based on titanium oxyhydroxide and manganese oxide on an oxidizable copper substrate and to evaluate their effectiveness against corrosion in chloride medium.TiO(OH)2/MnO2 composite film presents minimum protection against copper corrosion in chloride medium. Hence the necessity to adopt other alternatives to improve its performances.The use of polyethylene glycol PEG12000 and the change of the solvent nature allows the elaboration of TiO(OH)2/MnO2/PEG12000 and TiO(OH)2(SM)/MnO2(SA) composites with attractive physicochemical and anticorrosive properties. This improvement over the reference composite TiO(OH)2/MnO2 is attributed to the formation of PEG-CuCl and TiO(OH)2(SM)/ MnOOH barrier layers, respectively, which prevent the penetration of chloride ions on the copper surface, thus minimizing pitting corrosion
Vu, Van Hinh. "Combustion catalytique de COV et COV chlorés sur oxydes mixtes de cuivre et de manganèse supportés sur TiO2." Compiègne, 2009. http://www.theses.fr/2009COMP1805.
Full textThe aim of this work was to develop an effective, durable and inexpensive catalyst for the combustion of VOCs and chlorinated VOCs. A series of catalysts based on copper and manganese oxides supported on TiO2 anatase (Mnl-yCuyO,/T) was synthesized and studied for the combustion of toluene and propylene in order to optimize the catalyst formulation. MnCuO,,/T catalyst, with the molar ratio Mn/Cu = 1 and 5 wt% (Mn + Cu) as amount of active phase, showed to be the mort active. It allows the total combustion of toluene and propylene at 240 and 230°C respectively. The higher activity of MnCuO /T is attributed to the spinel phase Mn1. 6Cu1,a0a. M temperatures lower than that of total conversion, the deactivation by coke formation is observed. However, the catalyst recovers al activity by treatment in air at 300°C. The combustion of other thirty VOCs was performed. A correlation between the temperature of total combustion and the ionization potential of VOCs was found to be satisfactory in the case of non-oxygenated hydrocarbons. The study of the total combustion of chlorinated VOCs showed Chat MnCuO /f has a good performance in terms of activity and stability. Chlorobenzene was completely converted to H2O, C02 without formation of any toxic by-products (PhClx). No deactivation of catalyst was observed alter 5 days of testing. At lower temperatures, the catalyst is partially deactivated during first hours of test before reaching steady state. The regeneration in air at 350°C allows the catalyst to recover its initial activity whereas the chlorine is not completely eliminated. The results of various characterizations allowed proposing MnCuOx. ,Cl /T and MnCuOX. ,+bC1222b/T as deactivated and regenerated catalyst formulations respectively. Finally, a preliminary kinetic study allowed us to examine the validity of two models, power law and Mars and van Ktevelen based model for the CB oxidation
RIFI, EL HOUSSEINE. "Extraction metallique par des gels hydrophobes." Université Louis Pasteur (Strasbourg) (1971-2008), 1988. http://www.theses.fr/1988STR13158.
Full textCoste, Jean Christophe. "Etude spectrométrique haute résolution par fluorescence induite par laser du système 2πu → X̃ 2πg des isotopomères symétriques de la molécule CuCl2." Lyon 1, 1993. http://www.theses.fr/1993LYO10290.
Full textLamrini, Mohamed. "Contribution à l'étude spectroscopique et cinétique de petites molécules intervenant dans des milieux lasers en phase gazeuse : CuCl2 et I2." Lyon 1, 1993. http://www.theses.fr/1993LYO10228.
Full textCerchez, Vladimir. "Nano structures formed by molecular chlorine interaction with noble metal surfaces : scanning Tunneling Microscopy/Spectroscopy study." Thesis, Nancy 1, 2011. http://www.theses.fr/2011NAN10047/document.
Full textThis work is related to the systematic study of chlorine adsorption mechanism on the metal's surfaces Au(111), Ag(111) and Cu(111). We had used for this study the interaction of chlorine gas with metal surface in ultra-high vacuum conditions. Elaborated systems were characterized from the structural point of view by low-energy electron diffraction and low-temperature scanning tunneling microscopy (5 K). Local electronic properties were probed by scanning tunneling spectroscopy. The first part of the work is devoted to the surface's structural modifications induced by chlorine adsorption from sub-monolayer regime to saturation, which corresponds to the appearance of metal halide precursors. From numerous experimental results we were able to describe in details the mechanism of gas/surface interaction and to propose atomic structural models that remained unresolved up to now. The proposed models were validated by density functional theory calculations. The second part of the thesis is devoted to the study of original electronic properties of the superstructure of quantum wells formed by self-organization of chlorine atoms on (111) surface of gold. We had studied the quantum resonances that appeared due to the confinement of surface electronic states in the pores of few nanometers in diameter. The eigenstates were characterized as a function of the quantum well?s shape and size. This study was completed by numerical modeling of spectroscopic properties of nano-pores in the "particle-in-a-box" limit
Bosch, Emmanuel. "Spectroscopie électronique de CuCl2 par transformée de Fourier haute résolution : étude rovibrationnelle isotopique et modélisation de l'effet Renner-Teller dans l'état fondamental." Lyon 1, 1998. http://www.theses.fr/1998LYO10171.
Full textRahimpour, Soleimani Hamid. "Spin relaxation in bulk CuCl and CdTe quantum wells." Université Louis Pasteur (Strasbourg) (1971-2008), 2005. https://publication-theses.unistra.fr/public/theses_doctorat/2005/RAHIMPOUR_SOLEIMANI_Hamid_2005.pdf.
Full textWe have studied the spin relaxation dynamics using nondegenerate pomp-probe measurements. This is possible if transitions from degenerate states to other states are mutually allowed and forbidden for circularly polarized light with different helicities. We have applied this technique to two types of semiconductors: bulk CuCl and CdTe/CdMnTe quantum wells. In CuCl, the polariton dispersion curve is scanned by looking at different excitation and detection wavelengths. We have performed these studies at low temperatures on monocrystalline samples on a subpicosecond time scale. We have evaluated how the optical properties close to the exciton resonance develop in time from induced absorption to gain, depending on the wavelength and the intensity of excitation. We have shown that the spin-flip time and the relaxation dynamics of exciton polaritons can be determined in the “spin-flip region” situated just below the polariton bottleneck where the studied polaritons are quite slowly propagating. Using this technique, we present the first measurements of spin relaxation times in CuCl. Below the spin-flip region, however, the spin memory of the polaritons is rapidly destroyed due to surface effects. Within the bottleneck region, the spin-flip time shortens significantly through exciton-exciton scattering processes which become important because of the high density of states and the exciton like character of the polaritons. In additions, we have presented a theoretical interpretation of spin relaxation in CuCl based on the invariant expansion method of an effective Hamiltonian. We consider two possibilities for exciton-spin relaxation: first due to scattering processes, in which the direction of Q is changed and second due to the exchange interaction between electrons and holes in conjunction with the center-of-mass motion of the excitons. In CdTe/CdMnTe quantum wells, the principle of the experiment relies on two optical transitions that share a common energy level. We demonstrate experimentally that in our undoped piezoelectric quantum well, the heavy-holes relax their spin (h =40 ps) more slowly than the electrons (e =8ps). We have explained our results in terms of phase space filling of the electron and hole bands, from which the excitons are made up