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Synthesis of N,N′-Disubstituted Urea from Ethylene Carbonate and Amine Using CaO.

✍ Scribed by Shin-ichiro Fujita; Bhalchandra M. Bhanage; Masahiko Arai

Publisher
John Wiley and Sons
Year
2004
Weight
13 KB
Volume
35
Category
Article
ISSN
0931-7597

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✍ Xinqiang Zhao; Hualiang An; Shufang Wang; Fang Li; Yanji Wang 📂 Article 📅 2008 🏛 Wiley (John Wiley & Sons) 🌐 English ⚖ 419 KB

## Abstract **BACKGROUND:** Ethylene carbonate (EC) was synthesised via urea and ethylene glycol (EG) over zinc/iron oxide catalyst. By so doing, the by‐product, EG, generated in the process of producing dimethyl carbonate by the transesterification route was converted back to the raw material, EC.