Catalytic Isomerization of Dihydroxyacetone to Lactic Acid and Alkyl Lactates over Hierarchical Zeolites Containing Tin
| Autor: | Myroslav Sprynskyy, Bogusław Buszewski, Agnieszka Feliczak-Guzik, Izabela Nowak |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
chemistry.chemical_element
Dihydroxyacetone 010402 general chemistry lcsh:Chemical technology 01 natural sciences Catalysis lcsh:Chemistry chemistry.chemical_compound Desorption Organic chemistry lcsh:TP1-1185 Physical and Theoretical Chemistry alkyl lactates Alkyl chemistry.chemical_classification 010405 organic chemistry lactic acid 0104 chemical sciences hierarchical zeolites containing tin chemistry lcsh:QD1-999 Reagent Methanol Tin Isomerization |
| Zdroj: | Catalysts, Vol 8, Iss 1, p 31 (2018) |
| ISSN: | 2073-4344 |
| Popis: | Hierarchical zeolites containing tin were obtained, characterized and used in a reaction of catalytic isomerization of dihydroxyacetone (DHA) to lactic acid and alkyl lactates. These catalysts are characterized by preserved crystallinity and primary microporosity with the simultaneous existence of secondary porosity regarding mesopores, which facilitates access of large molecules of reagents to active centers. Creation of additional porosity was confirmed by X-ray diffraction and low-temperature nitrogen adsorption/desorption studies. The reaction of dihydroxyacetone isomerization was conducted in different reaction media such as methanol, ethanol or water with the use of two heating methods: microwave radiation and conventional heating. The application of microwave radiation enabled to reduce the reaction time to 1 h and achieve dihydroxyacetone conversion of >90% and high yields of the desired reaction products. |
| Databáze: | OpenAIRE |
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