Articles producció científica> Enginyeria Química

Microwave-assisted condensation of bio-based hydroxymethylfurfural and acetone over recyclable hydrotalcite-related materials

  • Dades identificatives

    Identificador: imarina:9138877
    Autors:
    Tampieri ARusso CMarotta RConstantí MContreras SMedina F
    Resum:
    © 2020 Elsevier Ltd The microwave-assisted neat aldol condensation of biomass-derived platform chemical 5-hydroxymethyl furfural (HMF) and acetone over hydrotalcite-based catalysts has been studied. High conversions are obtained in very short times with relatively low catalyst loadings. The condensation products, which are biofuel and functional polymer precursors, are selectively obtained. Heterogeneous catalysts with different basic properties derived from the same parent hydrotalcite have been tested. The solids were characterized by PXRD, ICP-AES, ESEM-EDX, TEM, FT-IR and Raman spectroscopy, N2 physisorption, CO2 chemisorption and TGA-MS. The products in the final reaction mixtures were determined by GC-FID and -MS, HPLC-DAD and -TOF, and NMR. NMR was also used to determine the stereoconfiguration of the obtained products and pointed to a complete E-selectivity of our process. Different catalyst recycle strategies have been explored, and the most active catalyst, a meixnerite-type solid, can be recycled with low activity loss.
  • Altres:

    Autor segons l'article: Tampieri A; Russo C; Marotta R; Constantí M; Contreras S; Medina F
    Departament: Enginyeria Química
    Autor/s de la URV: Constantí Garriga, Magdalena / Contreras Iglesias, Sandra / Medina Cabello, Francisco
    Paraules clau: Zebrafish Xenopus Turtles Species specificity Rehydrated hydrotalcite Potential therapeutic target Phylogeny Microwave-assisted organic synthesis Mice Membrane glycoproteins Layered double hydroxide Immunity Humans Grass carp Gene network Gene expression Fish proteins Complement system Complement c8 Chickens Cd59 protein, human Cd59 antigens Catalyst recycle Carps Biofuel production Animals
    Resum: © 2020 Elsevier Ltd The microwave-assisted neat aldol condensation of biomass-derived platform chemical 5-hydroxymethyl furfural (HMF) and acetone over hydrotalcite-based catalysts has been studied. High conversions are obtained in very short times with relatively low catalyst loadings. The condensation products, which are biofuel and functional polymer precursors, are selectively obtained. Heterogeneous catalysts with different basic properties derived from the same parent hydrotalcite have been tested. The solids were characterized by PXRD, ICP-AES, ESEM-EDX, TEM, FT-IR and Raman spectroscopy, N2 physisorption, CO2 chemisorption and TGA-MS. The products in the final reaction mixtures were determined by GC-FID and -MS, HPLC-DAD and -TOF, and NMR. NMR was also used to determine the stereoconfiguration of the obtained products and pointed to a complete E-selectivity of our process. Different catalyst recycle strategies have been explored, and the most active catalyst, a meixnerite-type solid, can be recycled with low activity loss.
    Àrees temàtiques: Zootecnia / recursos pesqueiros Saúde coletiva Química Odontología Molecular biology Medicina veterinaria Medicina iii Medicina ii Medicina i Interdisciplinar Immunology General medicine Farmacia Engenharias ii Educação física Ciências biológicas iii Ciências biológicas ii Ciências biológicas i Ciências agrárias i Biotecnología Biochemistry & molecular biology
    Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
    Adreça de correu electrònic de l'autor: sandra.contreras@urv.cat magdalena.constanti@urv.cat francesc.medina@urv.cat
    Identificador de l'autor: 0000-0001-8917-4733 0000-0002-3547-4199 0000-0002-3111-1542
    Data d'alta del registre: 2024-10-12
    Versió de l'article dipositat: info:eu-repo/semantics/acceptedVersion
    Enllaç font original: https://www.sciencedirect.com/science/article/abs/pii/S0926337320310146
    URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
    Referència a l'article segons font original: Molecular Immunology. 128 235-248
    Referència de l'ítem segons les normes APA: Tampieri A; Russo C; Marotta R; Constantí M; Contreras S; Medina F (2020). Microwave-assisted condensation of bio-based hydroxymethylfurfural and acetone over recyclable hydrotalcite-related materials. Molecular Immunology, 128(), 235-248. DOI: 10.1016/j.molimm.2020.10.013
    DOI de l'article: 10.1016/j.molimm.2020.10.013
    Entitat: Universitat Rovira i Virgili
    Any de publicació de la revista: 2020
    Tipus de publicació: Journal Publications
  • Paraules clau:

    Biochemistry & Molecular Biology,Immunology,Molecular Biology
    Zebrafish
    Xenopus
    Turtles
    Species specificity
    Rehydrated hydrotalcite
    Potential therapeutic target
    Phylogeny
    Microwave-assisted organic synthesis
    Mice
    Membrane glycoproteins
    Layered double hydroxide
    Immunity
    Humans
    Grass carp
    Gene network
    Gene expression
    Fish proteins
    Complement system
    Complement c8
    Chickens
    Cd59 protein, human
    Cd59 antigens
    Catalyst recycle
    Carps
    Biofuel production
    Animals
    Zootecnia / recursos pesqueiros
    Saúde coletiva
    Química
    Odontología
    Molecular biology
    Medicina veterinaria
    Medicina iii
    Medicina ii
    Medicina i
    Interdisciplinar
    Immunology
    General medicine
    Farmacia
    Engenharias ii
    Educação física
    Ciências biológicas iii
    Ciências biológicas ii
    Ciências biológicas i
    Ciências agrárias i
    Biotecnología
    Biochemistry & molecular biology
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