Conversion of D-Fructose into Ethyl Lactate Over a Supported SnO<sub>2</sub>–ZnO/Al<sub>2</sub>O<sub>3</sub> Catalyst
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 SnO<sub>2</sub>-containing oxides prepared by impregnation of alumina were characterized by several techniques in order to determine their te...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2019-01-01
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| Series: | Colloids and Interfaces |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2504-5377/3/1/16 |
| Summary: | 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 SnO<sub>2</sub>-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 SnO<sub>2</sub>/Al<sub>2</sub>O<sub>3</sub> catalysts using autoclave rotated with 60 rpm at 160 °C for 3 h was studied. It was found that doping SnO<sub>2</sub>/Al<sub>2</sub>O<sub>3</sub> samples with ZnO improves selectivity towards ethyl lactate. The supported SnO<sub>2</sub>-ZnO/Al<sub>2</sub>O<sub>3</sub> 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 <sup>IV</sup>Sn<sup>4+</sup> sites is discussed. |
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| ISSN: | 2504-5377 |