Dissertations / Theses on the topic 'Adsorbant minéral'
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Khayar, Mohammed. "Étude de l'adsorption des tensio-actifs sur les minéraux peu conducteurs : caractérisation diélectrique : application a la flottation des pulpes minérales." Nancy 1, 1993. http://www.theses.fr/1993NAN10057.
Full textDaoudi, Abdelali. "Systèmes Métal-CO comme modèles de chimisorption : interaction de configuration et orbitales naturelles." Paris 11, 1988. http://www.theses.fr/1988PA112050.
Full textMercy, Michel. "Contribution à l'étude des relations entre coefficients d'accommodation et physisorption." Nancy 1, 1989. http://www.theses.fr/1989NAN10221.
Full textLecarme-Théobold, Émilie. "Comportement du tributylétain en milieu aqueux en présence d'une phase solide hétérogène." Nancy 1, 1998. http://www.theses.fr/1998NAN10255.
Full textBah, Abdellah. "Étude de films de chlorométhane et de trichlorométhane physisorbes sur les plans de base du graphite." Nancy 1, 1994. http://www.theses.fr/1994NAN10017.
Full textGao, Yumin. "Influences des dépôts métalliques sur l'effet SERS." Paris 6, 1986. http://www.theses.fr/1986PA066061.
Full textRazafitianamaharavo, Angelina. "Étude structurale du film de cyclohexane physisorbé sur graphite : Étude thermodynamique et structurale du film mixte (krypton-cyclohexane) physisorbe sur graphite." Nancy 1, 1989. http://www.theses.fr/1989NAN10080.
Full textRakotozafy, Samuel. "Étude de films mixtes formés par physisorption sur les plans de base du graphite de deux adsorbats de propriétés de condensation très différentes : transition de déplacement : solutions bidimensionnelles." Nancy 1, 1993. http://www.theses.fr/1993NAN10226.
Full textArmand, Dominique. "Etude du rôle des structures cristallines intrinsèque et induite du platine sur l'électrosorption de l'hydrogène et de l'oxygène en milieu acide." Paris 6, 1986. http://www.theses.fr/1986PA066073.
Full textAngerand, François. "Étude thermodynamique et structurale des changements de phase bidimensionnels dans des films de molécules physisorbées sur le graphite : Rôle de l'ordre orientationnel dans les phénomènes de mouillage et de transition rugueuse." Nancy 1, 1987. http://www.theses.fr/1987NAN10268.
Full textThomas, Fabien. "Mécanismes de rétention à l'interface alumine-solution aqueuse." Nancy 1, 1987. http://www.theses.fr/1987NAN10444.
Full textChahbani, Mohamed Hachemi. "Séparation de gaz par adsorption modulée en pression : modélisation des écoulements et de la cinétique de transfert de matière." Vandoeuvre-les-Nancy, INPL, 1996. http://www.theses.fr/1996INPL108N.
Full textMallmann, Aimery de. "Modifications du benzène par adsorption sur des faujasites échangées par des ions alcalins." Paris 6, 1986. http://www.theses.fr/1986PA066347.
Full textAlnot, Patrick. "Étude des mécanismes d'adsorption, de désorption et de décomposition de molécules simples (N : :(2), H::(2), D::(2), NH::(3), ND::(3), CO, NO, O::(2)) sur W(100) par la technique des faisceaux moléculaires et par photoémission." Nancy 1, 1988. http://www.theses.fr/1988NAN10063.
Full textShevchenko, Zaitseva Nataliya. "Matériaux mésoporeux hybrides organo-minéraux bi-fonctionnalisés : synthèse, caractérisation physico-chimique et application à l'élimination du chrome." Thesis, Université de Lorraine, 2013. http://www.theses.fr/2013LORR0075/document.
Full textThe present work proposes to examine chemical characteristics and behavior of two bifunctionalized silicas exhibiting either a mesostructure (i.e., MCM-41) or not (i.e., silica gel, denoted here SiO2) with respect to the immobilization of chromium species. The organo-functional groups selected to achieve this goal are mercaptopropyl and propylsulfonic acid moieties (MCM-SH,SO3H), on one hand, and mercaptopropyl and ethylenediaminetriacetate groups (SiO2-SH/ED3A) on the other hand. The research has been started with structurally ordered materials, of MCM-41 type, to ensure high surface area and easy and fast accessibility to the functional groups. On the basis of thiol-modified MCM-41, a set of sorbent samples containing different ratio of grafted mercaptopropyl and propylsulfonic acid groups (constant concentration of sulfur = 1 mmol g-1) has been synthesized. Special attention was first given to the characterization of surface chemical contents, which are expected to have a strong influence on sorption parameters. A simple, one-instrument method (conductometric titration) has been applied to the simultaneous determination of thiol- and sulfonic group on MCM-SH,SO3H. Then, the experimental conditions that are likely to provide effective sequestration of Cr(VI) on MCM-SH,SO3H have been defined, notably by studying the effect of pH, solid-to-solution ratio, or composition of the adsorbent (i.e., SH/SO3H ratio). On the basis of received data, a reduction-sorption mechanism explaining the uptake process has been proposed. In a second approach, a second type of bi-functional silica (SiO2-SH,ED3A) was suggested so as to improve the affinity (sorption properties) of the material to the reductively-generated Cr(III) species. Silica-gel was chosen as the matrix to graft controlled amounts of mercaptopropyl and ethylenediaminetriacetate groups at its surface. The performance of such bi-functional adsorbent was evaluated with respect to various experimental parameters likely to affect the reduction-sorption process (pH, solid-to-solution ratio, concentration) in order to determine the uptake mechanism and to compare it with the above adsorbent. Finally, it will be seen how this second adsorbent also offers the advantage of being usable in flowing conditions (column experiments)