On May 25, 2020, Kulal, Nagendra; John, Crowny; Shanbhag, Ganapati V. published an article.Recommanded Product: 1,3-Diphenylurea The title of the article was Rational design of bifunctional catalyst from KF and ZnO combination on alumina for cyclic urea synthesis from CO2 and diamine. And the article contained the following:
This study is mainly focused on the design of stable, active and selective catalyst for direct synthesis of 2-imidazolidinone (cyclic urea) from ethylenediamine and CO2. Based on the rationale for the catalyst properties needed for this reaction, KF, ZnO and Al2O3 combination was selected to design the catalyst. ZnO/KF/Al2O3 catalyst was prepared by stepwise wet-impregnation followed by the removal of physisorbed KF from the surface. High product yield could be achieved by tuning acid-base sites by varying the composition and calcination temperature The catalysts were characterized by various techniques like XRD, N2-sorption, NH3-TPD, CO2-TPD, TEM, XPS and FT-IR measurements. It is shown that acidic and basic properties of the solvent can influence the activity and product selectivity for this reaction. Under optimized condition; 180°C, 10 bar and 10 weight% catalyst in batch mode, 96.3% conversion and 89.6% selectivity towards the 2-imidazolidinone were achieved. The experimental process involved the reaction of 1,3-Diphenylurea(cas: 102-07-8).Recommanded Product: 1,3-Diphenylurea
The Article related to bifunctional catalyst potassium fluoride zinc oxide alumina cyclic urea, carbon dioxide diamine cyclic urea catalyst, Industrial Organic Chemicals, Leather, Fats, and Waxes: Manufacture Of Industrial Organic Chemicals and other aspects.Recommanded Product: 1,3-Diphenylurea
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