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dc.contributor.author | Soriano Rodríguez, Mª Dolores | es_ES |
dc.contributor.author | Concepción Heydorn, Patricia | es_ES |
dc.contributor.author | López Nieto, José Manuel | es_ES |
dc.contributor.author | Cavani, Fabrizio | es_ES |
dc.contributor.author | Guidetti, Stefania | es_ES |
dc.contributor.author | Trevisanut, C. | es_ES |
dc.date.accessioned | 2013-07-15T07:31:56Z | |
dc.date.issued | 2011 | |
dc.identifier.issn | 1463-9262 | |
dc.identifier.uri | http://hdl.handle.net/10251/31141 | |
dc.description.abstract | [EN] In this paper we report on the one-pot transformation of glycerol into acrylic acid, catalyzed by W/V mixed oxides, with hexagonal tungsten bronze (HTB) structure. The reaction requires two different catalyst functions, i.e., an acid one, which is given by W oxide, and an oxidizing one, given by the V ions incorporated within the WO3 lattice. W¿O bronze is very active and moderately selective in acrolein formation, but yields only traces of acrylic acid. The incorporation of increasing amounts of V inside the hexagonal tungsten bronze structure, with the development of a monophasic compound, allows the consecutive oxidation of acrolein into acrylic acid. An optimal atomic ratio between W and V equal to V/(W + V) = 0.12¿0.21 made it possible to obtain an acrylic acid yield of 25% (with selectivity to residual acrolein of 11%). However, during reaction under the oxygen-containing feed, the V4+ incorporated into the hexagonal bronze structure underwent a slow oxidation into V5+, which caused a progressive decline of selectivity to acrylic acid and a concomitant increase of COx formation; the hexagonal structure however was stable during lifetime experiments. On the other hand, in the absence of oxygen a very rapid deactivation of the catalyst occurred, with a decrease in selectivity to acrolein and increase in heavy by-products. | es_ES |
dc.description.sponsorship | The Spanish authors would like to thank the DGICYT in Spain (Project CTQ2009-14495) for financial support. MIUR (Ministerro dell'Universita e della Ricerca) is acknowledged for the PhD grant to SG. M. D. S. thanks the Programa de Apoyo a la Investigacion y Desarrollo (PAID-00-10, Universidad Politecnica de Valencia, Spain) by concession of a short stay grant. | |
dc.language | Inglés | es_ES |
dc.publisher | Royal Society of Chemistry | es_ES |
dc.relation.ispartof | Green Chemistry | es_ES |
dc.rights | Reserva de todos los derechos | es_ES |
dc.title | Tungsten-Vanadium mixed oxides for the oxidehydration of glycerol into acrylic acid | es_ES |
dc.type | Artículo | es_ES |
dc.embargo.lift | 10000-01-01 | |
dc.embargo.terms | forever | es_ES |
dc.identifier.doi | 10.1039/c1gc15622e | |
dc.relation.projectID | info:eu-repo/grantAgreement/MICINN//CTQ2009-14495/ES/Desarrollo de catalizadores basados en óxidos metálicos no estequiométricos de Mo y W con propiedades acidas y%2Fo redox pra procesos de quimica sostenible/ | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/UPV//PAID-00-10/ | es_ES |
dc.rights.accessRights | Cerrado | es_ES |
dc.contributor.affiliation | Universitat Politècnica de València. Instituto Universitario Mixto de Tecnología Química - Institut Universitari Mixt de Tecnologia Química | es_ES |
dc.description.bibliographicCitation | Soriano Rodríguez, MD.; Concepción Heydorn, P.; López Nieto, JM.; Cavani, F.; Guidetti, S.; Trevisanut, C. (2011). Tungsten-Vanadium mixed oxides for the oxidehydration of glycerol into acrylic acid. Green Chemistry. 13(10):2954-2962. https://doi.org/10.1039/c1gc15622e | es_ES |
dc.description.accrualMethod | S | es_ES |
dc.relation.publisherversion | http://dx.doi.org/10.1039/c1gc15622e | es_ES |
dc.description.upvformatpinicio | 2954 | es_ES |
dc.description.upvformatpfin | 2962 | es_ES |
dc.type.version | info:eu-repo/semantics/publishedVersion | es_ES |
dc.description.volume | 13 | es_ES |
dc.description.issue | 10 | es_ES |
dc.relation.senia | 214443 | |
dc.identifier.eissn | 1463-9270 | |
dc.contributor.funder | Universitat Politècnica de València | |
dc.contributor.funder | Ministerio de Ciencia e Innovación | es_ES |