Synthesis of diethylcarbonate by ethanolysis of urea: A study on the recoverability and recyclability of new Zn-based heterogeneous catalysts

Autor: Francesco Ruffo, Elvira De Giglio, Maria Elena Cucciolito, Daniel Curulla-Ferré, Antonella Angelini, Brunella Maria Aresta, Angela Dibenedetto, Stefania Fasciano, Michele Aresta
Přispěvatelé: Di Benedetto, A., Angelini, A., Aresta, Michele, Fasciano, S., Cucciolito, MARIA ELENA, Ruffo, Francesco, Aresta, Brunella, Curulla Ferre, D., De Giglio, E.
Rok vydání: 2015
Předmět:
Zdroj: Applied Catalysis A: General. 493:1-7
ISSN: 0926-860X
Popis: 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 centre, mixed oxides, ZIF-8 and Zn-tethered systems have been synthesized and found to sensibly reduce the leaching of Zn in solution 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.
Databáze: OpenAIRE