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      HIDROGENACIÓN DE ACROLEÍNA Y CROTONALDEHÍDO SOBRE CATALIZADORES DE IR SOPORTADO Translated title: ACROLEIN AND CROTONALDEHYDE HYDROGENATION ON IR-SUPPORTED CATALYSTS

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          Abstract

          Se evaluó el comportamiento de diferentes catalizadores de Ir, en la hidrogenación de aldehídos a,b-insaturados, acroleína y crotonaldehído, para la obtención de sus alcoholes insaturados alcohol alílico y crotílico respectivamente, cuya utilidad en la industria de la química fina es de amplio reconocimiento. Los aldehídos objeto de esta investigación representan un alto riesgo ambiental, por lo que la investigación presentada en este trabajo resulta de gran importancia en ese campo. En general los resultados obtenidos muestran que factores como temperatura de reducción y contenido de TiO2 en los catalizadores son determinantes en el comportamiento catalítico; análisis de caracterización permitieron establecer que en los catalizadores reducidos a alta temperatura se presenta el efecto de interacción fuerte metal soporte, conocido por su símbolo SMSI, lo que favorece la conversión, actividad inicial y TOF. De igual manera los catalizadores evaluados son altamente selectivos hacia los alcoholes insaturados que representan los productos de interés en este estudio.

          Translated abstract

          The behavior of different Ir catalysts in the hydrogenation of a,b-unsaturated acrolein and crotonaldehyde aldehydes has been evaluated to obtain their allyl and crotyl unsaturated alcohols respectively; their products are used in fine chemicals industry. The present work is of great importance in this field because of the unsaturated aldehydes studied having high environmental risk besides the great academic contribution. The results show that factors such as reduction temperature and TiO2 content are critical in the catalytic behavior, through the analysis of characterization was established that the catalysts reduced at high temperature shows the Strong Metal Support Interaction effect (SMSI), which favors conversion percentage, initial activity and TOF. The analyzed catalysts were highly selective towards the unsaturated alcohols.

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          Most cited references28

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          Supported Gold Nanoparticles from Quantum Dot to Mesoscopic Size Scale:  Effect of Electronic and Structural Properties on Catalytic Hydrogenation of Conjugated Functional Groups

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            Heterogeneously catalysed hydrogenation using gold catalysts

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              Supported gold nanoparticles: in-depth catalyst characterization and application in hydrogenation and oxidation reactions

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                Author and article information

                Journal
                dyna
                DYNA
                Dyna rev.fac.nac.minas
                Universidad Nacional de Colombia (Medellín, Antioquia, Colombia )
                0012-7353
                2346-2183
                September 2009
                : 76
                : 159
                : 125-134
                Affiliations
                [01] Tunja orgnameUniversidad Pedagógica y Tecnológica de Colombia orgdiv1Grupo de Catálisis Colombia hurojas@ 123456udec.cl
                [05] orgnameUniversidad Nacional de Colombia, sede Medellín nrrojasr@ 123456unalmed.edu.co
                [03] Tunja orgnameUniversidad Pedagógica y Tecnológica de Colombia orgdiv1Grupo de Catálisis Colombia gborda@ 123456hotmail.com
                [02] Tunja orgnameUniversidad Pedagógica y Tecnológica de Colombia orgdiv1Grupo de Catálisis Colombia juliejoseane@ 123456yahoo.es
                [04] Concepción orgnameUniversidad de Concepción orgdiv1Facultad de Ciencias Químicas Chile preyes@ 123456udec.cl
                Article
                S0012-73532009000300013 S0012-7353(09)07615913
                6840a472-b3aa-480c-b350-104cd25ca25d

                This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

                History
                : 10 February 2009
                : 20 May 2009
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 29, Pages: 10
                Product

                SciELO Colombia

                Categories
                Articulos

                Unsaturated alcohol,efecto SMSI,catalizadores de Ir soportado,hidrogenación,alcohol insaturado,acroleína,Crotonaldehído,SMSI effect,Ir-supported catalysts,hydrogenation,Acrolein,Crotonaldehyde

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