Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
210946 | Fuel Processing Technology | 2009 | 4 Pages |
Abstract
Direct synthesis of dimethyl carbonate from methanol and urea using ionic liquids, such as Et3NHCl–FeCl3, Et3NHCl–ZnCl2, Et3NHCl–CuCl2, Et3NHCl–SnCl2 and emimBr–ZnCl2, as catalysts were investigated. Among the ionic liquids, Et3NHCl–ZnCl2 or emimBr–ZnCl2 exhibited higher activity for the synthetic reaction and surprisingly high selectivity to DMC. The effects of the various reaction conditions, i.e. reaction temperature, molar ratio of methanol to urea, and amount and composition of catalysts, on the synthesis of DMC were discussed in a systematic way. The reaction mechanism and the reasons why raised activity and high selectivity of the catalyst are maintained were explored.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Hong Wang, Bin Lu, Xiaoguang Wang, Jiawei Zhang, Qinghai Cai,