Synthesis of diethylcarbonate by ethanolysis of urea: A study on the recoverability and recyclability of new Zn-based heterogeneous catalysts
- Di Benedetto, A.
- Angelini, A.
- Aresta, Michele
- Fasciano, S.
- Aresta, Brunella
- Curulla Ferre, D.
- De Giglio, E.
- CUCCIOLITO, MARIA ELENA
- RUFFO, FRANCESCO
Publication date
January 2015
DOIAbstract
New Zn-based catalysts are described that act as heterogenized or heterogeneous catalysts, with easy recovery and re-utilization with a limited or even zero Zn-leaching. For stabilizing in the heterogeneous form the catalytically active Zn center, mixed oxides, ZIF-8 and Zn-tethered systems have been synthesized and found to sensibly reduce the leaching of Zn in soln. with respect to ZnO, making possible their recovery and reuse. ZIF-8 can be used for long time of reaction, reaching high DEC yields (comparable or higher than those obtained with ZnO) without any significant loss of zinc
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