Dr. Cabezas-Cornejo, René

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Dr. Cabezas-Cornejo, René
Nombre completo
Cabezas Cornejo, René Andrés
Facultad
Email
rene.cabezas@ucsc.cl
ORCID

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20221
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Subject: Building block molecules ×

Research Outputs

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    [Tf2N]-based ionic liquids for the selective liquid-liquid extraction of levulinic acid/formic acid: COSMO-RS screening and ternary LLE experimental data
    (Fluid Phase Equilibria, 2022)
    Dr. Cabezas-Cornejo, René 
    ;
    Araya-López, Claudio
    ;
    Contreras, Javier
    ;
    Merlet, Gastón
    ;
    Olea, Felipe
    ;
    Villarroel, Eduardo
    ;
    Salazar, Ricardo
    ;
    Romero, Julio
    ;
    Quijada-Maldonado, Esteban
    The separation of Levulinic (LA) acid and Formic acid (FA) from aqueous streams represents an important and challenging separation in biorefineries, where ionic liquids (ILs) provide a sustainable environment for liquid-liquid extractions of these acids. In this work, a COSMO-RS screening of bis (trifluoromethylsulfonil)imide [Tf2N]− based IL was first conducted and then followed by experimental validation to search for the most suitable cation for this separation. After the screening, ternary liquid-liquid equilibrium experiments at 298.15K and the subsequent data correlation using the Non-Random Two Liquid model (NRTL) were performed for future industrial implementation. Results indicated that the phosphonium cations, especially the trihexylthetradecyl phosphonium cation [P66614]+, produced the highest selectivity rates among all the experimentally measured ILs.