Catalytic activity of clinoptilolite-based catalysts in the esterification of levulinic acid
Pavlovic, Jelena
Popova, Margarita
Mihalyi, Magdolna
Mazaj, Matjaz
Mali, Gregor
Kovač, Janez
Lazarova, Hristina
Rajic, Nevenka
Abstract: Natural zeolite – clinoptilolite loaded with SnO2 (TOHCLI) or sulfated SnO2 (STOHCLI) was studied inthe esterification of levulinic acid (LA) with octanol and ethanol. TOHCLI showed a high activity (55 %) in the conversion of LA into octyllevulinate (OLA) and a moderate activity (22 %) in the conversion to ethyl levulinate (ELA). Total conversion of LA to OLA and ELA was achieved by STOHCLI which is explainedby the presence of Brönsted and Lewis acid sites in the STOHCLI.
engleski
2019
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clinoptilolite, sulfated SnO2, levulinic acid, levulinate esters