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Comparison of the properties and catalytic activity of commercially and laboratory prepared Mg/Al mixed oxides in aldol condensation of cyclohexanone with furfural

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62243136%3A_____%2F19%3AN0000013" target="_blank" >RIV/62243136:_____/19:N0000013 - isvavai.cz</a>

  • Result on the web

    <a href="https://link-springer-com.ezproxy.techlib.cz/content/pdf/10.1007%2Fs11144-018-1497-7.pdf" target="_blank" >https://link-springer-com.ezproxy.techlib.cz/content/pdf/10.1007%2Fs11144-018-1497-7.pdf</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1007/s11144-018-1497-7" target="_blank" >10.1007/s11144-018-1497-7</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Comparison of the properties and catalytic activity of commercially and laboratory prepared Mg/Al mixed oxides in aldol condensation of cyclohexanone with furfural

  • Original language description

    In recent years, for deeper understanding of the behavior of various heterogeneous catalysts, aldol condensation of acetone and furfural has been researched in detail. In this article, the carbonyl reactants are represented by cyclohexanone and furfural as the platform chemicals for synthesis the fundamental building blocks for future biorefineries. Our main goal was to explore the structural and acid–base properties and to compare them with catalytic characteristics of Mg/Al mixed oxides in aldol condensation of cyclohexanone with furfural. The aforesaid basic heterogeneous catalysts were obtained by the calcination of commercially and laboratory prepared hydrotalcites with different molar ratios (1:1–5:1). Their physicochemical properties were determined based on several analytical methods: XRD, ICP-OES, SEM, N2 physisorption, TGA, TGA-MS, DRIFT, TPD-CO2 and TPD-NH3. Through XRD, it was found that as-synthesized laboratory hydrotalcites had the pure crystalline hydrotalcite structure while commercial ones contained also the brucite and MgO phases. By using TPD-CO2 and TPD-NH3, the measured values, especially the total amount of basic sites, provided the best correlation with the catalytic activity of investigated catalysts. Comparable conversions of furfural (ca. 87%) were achieved on laboratory and commercial mixed oxides with the Mg/Al molar ratio 1:1 and 3:1, respectively. They had no obvious difference in selectivity to FCH (about 20%) whereas the commercial samples showed higher selectivity to F2CH (26% at max conversion) than the laboratory ones (17%).

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    20402 - Chemical process engineering

Result continuities

  • Project

    <a href="/en/project/TH01011223" target="_blank" >TH01011223: Modified hydrotalcites for heterogenous catalysis of the basic condensation reactions</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2019

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Reaction Kinetics, Mechanisms and Catalysis

  • ISSN

    1878-5204

  • e-ISSN

  • Volume of the periodical

    1

  • Issue of the periodical within the volume

    126

  • Country of publishing house

    HU - HUNGARY

  • Number of pages

    17

  • Pages from-to

    219-235

  • UT code for WoS article

    000458562400014

  • EID of the result in the Scopus database

    2-s2.0-85056872076