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Conversion of D-Fructose into Ethyl Lactate Over a Supported SnO2–ZnO/Al2O3 Catalyst

Institute for Sorption and Problems of Endoecology of National Academy of Sciences of Ukraine, 13 General Naumov Str., Kyiv 03164, Ukraine
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Colloids Interfaces 2019, 3(1), 16; https://doi.org/10.3390/colloids3010016
Received: 17 December 2018 / Revised: 17 January 2019 / Accepted: 22 January 2019 / Published: 25 January 2019
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Abstract

The study is directed to the search of a simple effective catalyst for ethyl lactate obtained from fructose as renewable raw material. A series of SnO2-containing oxides prepared by impregnation of alumina were characterized by several techniques in order to determine their textural and acid-base properties. The transformation of a 13% fructose solution in 98% ethanol over SnO2/Al2O3 catalysts using autoclave rotated with 60 rpm at 160 °C for 3 h was studied. It was found that doping SnO2/Al2O3 samples with ZnO improves selectivity towards ethyl lactate. The supported SnO2-ZnO/Al2O3 catalyst provides 100% fructose conversion with 55% yield of ethyl lactate at 160 °C. A possible scheme of fructose transformation into ethyl lactate on L-acid IVSn4+ sites is discussed. View Full-Text
Keywords: fructose; ethyl lactate; SnO2/Al2O3 catalyst fructose; ethyl lactate; SnO2/Al2O3 catalyst
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Prudius, S.V.; Hes, N.L.; Brei, V.V. Conversion of D-Fructose into Ethyl Lactate Over a Supported SnO2–ZnO/Al2O3 Catalyst. Colloids Interfaces 2019, 3, 16.

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