Auswahl der wissenschaftlichen Literatur zum Thema „Valorisation chimique du polyéthylène“
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Zeitschriftenartikel zum Thema "Valorisation chimique du polyéthylène"
Bonin, Frédéric, Maxence Arnould, Pierre Duval, Aristide Robic, Marie-Loréa Tapie-Petit, Mehdi El Hrizi, Theresia Euler et al. „Perspectives d'émergence d'une filière forêt-chimie des extractibles Points de vue des acteurs du Nord-Est de la France et du Sud-Ouest de l'Allemagne“. Revue forestière française 72, Nr. 1 (28.02.2020): 71–84. http://dx.doi.org/10.20870/revforfr.2020.5304.
Der volle Inhalt der QuelleKopytko, N., und F. Baronnet. „Valorisation chimique du mèthane par plasmas micro-ondes“. Canadian Journal of Chemistry 76, Nr. 12 (01.12.1998): 1875–85. http://dx.doi.org/10.1139/v98-199.
Der volle Inhalt der QuelleNavarre, Sébastien, und Bernard Maillard. „Modification chimique du polyéthylène par décomposition homolytique de l’hydroperoxyde de 1,1-diméthyléthyle“. European Polymer Journal 36, Nr. 12 (Dezember 2000): 2531–39. http://dx.doi.org/10.1016/s0014-3057(00)00066-5.
Der volle Inhalt der QuelleDawans, F. „Le traitement des déchets polymères : la valorisation énergétique ou chimique“. Revue de l'Institut Français du Pétrole 47, Nr. 6 (November 1992): 837–67. http://dx.doi.org/10.2516/ogst:1992051.
Der volle Inhalt der QuelleFaure, D., und A. M. Deschamps. „Valorisation des pellicules de raisins par compostage“. OENO One 24, Nr. 1 (31.03.1990): 1. http://dx.doi.org/10.20870/oeno-one.1990.24.1.1223.
Der volle Inhalt der QuelleRATSIMBA, Marie Hanitriniaina, Hoby Sandra RAKOTONDRANALY und 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, Nr. 1 (04.10.2022): 496. http://dx.doi.org/10.52155/ijpsat.v34.1.4562.
Der volle Inhalt der QuelleChatel, Grégory, Romain Duwald, Christine Piot und Micheline Draye. „Valorisation chimique et économique des renouées asiatiques : quelle stratégie pour une gestion durable ?“ Sciences Eaux & Territoires Numéro 27, Nr. 1 (2019): 102. http://dx.doi.org/10.3917/set.027.0102.
Der volle Inhalt der QuelleRakotomaria, Etienne, Marie Hanitriniaina Ratsimba und Pierre Rakotomamonjy. „Valorisation chimique du kaolin dans le traitement des eaux : préparation de nouveaux coagulants minéraux“. Revue des sciences de l’eau 24, Nr. 4 (24.01.2012): 437–48. http://dx.doi.org/10.7202/1007629ar.
Der volle Inhalt der QuelleTruong, To Oanh, Robert Hausler, Fréderic Monette und Patrick Niquette. „Valorisation des résidus industriels de pêches pour la transformation de chitosane par technique hydrothermo-chimique“. Revue des sciences de l'eau 20, Nr. 3 (07.08.2007): 253–62. http://dx.doi.org/10.7202/016170ar.
Der volle Inhalt der QuelleHUC, Stéphanie, Gilles FRIBOULET und David PAULIN. „Valorisation agro-écologique de sédiments lacustres en contexte de revégétalisation de pelouse subalpine (Barrage du Mont Cenis, Alpes, France)“. Sciences Eaux & Territoires, Nr. 39 (10.06.2022): 1–6. http://dx.doi.org/10.20870/revue-set.2022.39.7059.
Der volle Inhalt der QuelleDissertationen zum Thema "Valorisation chimique du polyéthylène"
Schmidt-Le, Tallec Yannick. „Valorisation de différents polyols dans des systèmes retardants de flamme : application au polyéthylène“. Lille 1, 1992. http://www.theses.fr/1992LIL10129.
Der volle Inhalt der QuelleGodin, Marie-Christine. „Valorisation de plastiques recyclés en provenance des centres de tri“. Thesis, Université Laval, 2013. http://www.theses.ulaval.ca/2013/29740/29740.pdf.
Der volle Inhalt der QuelleKassargy, Chantal. „Contribution à l’étude de la valorisation énergétique des résidus de plastique par craquage catalytique“. Thesis, Ecole nationale supérieure Mines-Télécom Atlantique Bretagne Pays de la Loire, 2018. http://www.theses.fr/2018IMTA0077/document.
Der volle Inhalt der QuelleContinuous consumption of plastics led, until 2015, to the accumulation of 6.3 billion tons of plastic waste. In Europe, the recycling of collected plastics does not exceed 30% for logistical and economic reasons related to this sector. The energy recoveryof this waste, which is not valid for recycling, is then preferred to other management methods. Incineration is controversial for its energy and environmental balance; other means of recovery such as pyrolysis are preferred. The research carried out in this thesis focused on the pyrolysis of polyolefins, polyethylene (PE) and polypropylene (PP), because of their strong presence in municipal plastic waste. The influence of the ultrastable Y zeolite (USY) on the pyrolysis of PP and PE, recovered from a waste collection center, was studied by thermogravimetric analysis (TGA) and then on a fixed bed batch reactor and a continuous reactor. The kinetic study of thermal decomposition of the PP and PE mixtures was carried out, the kinetic parameters were determined and the interactions between the various components of the mixture were analyzed. The amount of zeolite was optimized and the catalyst/plastic ratio of 1:10 was adopted during the experimental tests. The use of USY as a catalyst has led to a more targeted distribution of compounds and shorter reaction times. The pyrolysis liquids obtained were separated into different fuel fractions compatible with the European standards EN 590 and EN 228. In order to reduce the production cost of these fuels, a catalystregeneration study was conducted and showed that its activity level decreased after 14 cycles of regeneration. At the end of the thesis, an energy and mass balance of the process was carried out and the prospects for improvement are presented in order to transpose the study on an industrial scale
Idris, Adamu Aminu. „Upcycling of polyethylenes by catalysis“. Electronic Thesis or Diss., Lyon 1, 2023. https://n2t.net/ark:/47881/m6fx79jm.
Der volle Inhalt der QuelleThe synthesis of functional telechelic oligomer/molecule platforms directly from polyethylene (PE) wastes, although very appealing from an environmental and economic point of view, remains today a major problem to tackle. Indeed, the strong C(Sp3) – C(Sp3) & C(Sp3) – H(Sp3) σ-covalent bonds of polyethylenes are undoubtedly not only at the origin of the robustness and chemical inertness of PEs relative to many reagents but also dramatically hamper their chemical recycling. Among the different chemical methods currently available for the treatment of polyolefin wastes, one can cite pyrolysis, thermal cracking, and/or catalytic hydrocracking. However, such approaches most often lead to mixtures of hydrocarbons in a non-selective manner, which are difficult to valorize. In this dissertation thesis, we seek to develop a more valuable route toward polyolefins circularity through polyethylenes upcycling into α,ω–divinyl, or diacetate oligomers. Our strategy involves a two-step process via first the creation of reactive internal alkenes on the main polymer backbone by iridium-catalyzed dehydrogenation followed by depolymerization of the resulting unsaturated polymers using Ru–catalyzed metathesis. A thorough screening of the reaction parameters, nature of the catalyst, and substrate scope was first undertaken for both reactions. We have shown that different levels of internal unsaturation can be generated on the PEs backbone by playing with the catalyst ligand, loading, or conditions of dehydrogenation without compromising its structural and thermal properties Subsequent cross-metathesis of these internally unsaturated polyethylenes with ethylene and cis–1,4–diacetoxy–2–butene as chain transfer agents afforded divinyl and diester telechelic products with 86 % and 91 % conversions (of internal double bonds into functional chain ends) respectively. The high-value-added end-products of this two-step process could be used as feed for the synthesis of recycle-by-design polymers, thereby reducing the exploitation of fossils for polymer production and its associated environmental impact
Dargham, Khadigé. „Valorisation chimique et photochimique de l'acide isocyanurique“. Toulouse, INPT, 1988. http://www.theses.fr/1988INPT008G.
Der volle Inhalt der QuellePierre, Ronan. „Valorisation chimique du saccharose et autres disaccharides“. Lyon 1, 2004. http://www.theses.fr/2004LYO10167.
Der volle Inhalt der QuelleDargham, Khadigé. „Valorisation chimique et photochimique de l'acide isocyanurique“. Grenoble 2 : ANRT, 1988. http://catalogue.bnf.fr/ark:/12148/cb37612904x.
Der volle Inhalt der QuelleGuy, Laurent. „Contribution au recyclage des polyéthylènes par une thermolyse ménagée en solution : contrôles, mécanismes et valorisation“. Lyon 1, 1997. http://www.theses.fr/1997LYO10340.
Der volle Inhalt der QuelleBoisard, Severine. „Caractérisation chimique et valorisation biologique d’extraits de propolis“. Thesis, Angers, 2014. http://www.theses.fr/2014ANGE0027/document.
Der volle Inhalt der QuellePropolis is a resinous substance collected by honeybees from various plant sources. Its secondary metabolites composition depends on the local flora around the collection site. During this study, the chemical characterization of a representative sample of a French propolis produced by ‘‘Ballot-Flurin Apiculteurs’’ led, through structural identifications involving HPLC/DAD/MS as well as 1D & 2D NMR, to the identification of 51 compounds, two of them being new. Phenolic acids and esters and flavonoids identified in this propolis indicate that it belongs to the so-called "poplar" type. The evaluation of the biological activities of different extracts or isolated compounds showed that this propolis, which exhibits a significant antioxidant activity (DPPH and ORAC) associated with a very interesting anti-glycation (anti-AGEs) potential, would represent a good candidate for the prevention of diseases involving AGEs such as diabetes. These extracts or compounds also exhibit antifungal and antibacterial activities towards two Candida yeasts on the one hand, and Staphylococcus aureus and its methicillin-resistant and susceptible strains on the other hand, the latter being nowadays responsible for many nosocomial infections. A study dealing with the inter-batch variability accompanied by an optimization of the industrial extraction process using experimental design were also carried out (Confidential part). Finally, the analysis of three propolis originating from Latin America (Mexico) and Africa (Ivory Coast and Uganda), revealed a great diversity of results in relation to chemical compositions and biological activities
Gueritey, Nicolas. „Valorisation chimique du méthane par oxydation catalytique sélective“. Vandoeuvre-les-Nancy, INPL, 1996. http://www.theses.fr/1996INPL034N.
Der volle Inhalt der QuelleBücher zum Thema "Valorisation chimique du polyéthylène"
Round Table Meeting 'Chemical and physical valorization of coal' (1985 Brussels). Round-table-Gespräch "Chemische und physikalische Veredlung von Kohle" =: Round-table meeting 'Chemical and physical valorization of coal' = Table ronde "Valorisation chimique et physique du charbon" : Brussels, 12 December 1985. Luxembourg: Commission of the European Communities, 1986.
Den vollen Inhalt der Quelle findenKonferenzberichte zum Thema "Valorisation chimique du polyéthylène"
WANG, Dongxing, Nor Edine ABRIAK, Rachid ZENTAR und Weiya XU. „Caractérisation physico-chimique d'un sédiment portuaire en vue d'une éventuelle valorisation“. In Journées Nationales Génie Côtier - Génie Civil. Editions Paralia, 2010. http://dx.doi.org/10.5150/jngcgc.2010.099-w.
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