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Zinc oxide as the precursor of homogenous catalyst for synthesis of dialkyl carbonate from urea and alcohols

✍ Scribed by Wenbo Zhao; Weicai Peng; Dengfeng Wang; Ning Zhao; Junping Li; Fukui Xiao; Wei Wei; Yuhan Sun


Book ID
118426883
Publisher
Elsevier Science
Year
2009
Tongue
English
Weight
344 KB
Volume
10
Category
Article
ISSN
1566-7367

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## 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.

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## Abstract A series of zinc–iron double oxide catalysts has been prepared. The suitable preparation conditions are as follows: zinc nitrate and iron nitrate as precursors, molar ratio of Zn/Fe 2:1, ammonia as the precipitant, precipitation end‐point pH 8.04, and calcination temperature 450 Β°C. The