Synthesis of propylene carbonate from carbon dioxide and 1,2-propylene glycol over zinc acetate catalyst

被引：45
|
作者：
Zhao, Xinqiang [1 ]
Sun, Na [1 ]
Wang, Shufang [1 ]
Li, Fang [1 ]
Wang, Yanji [1 ]
机构：
[1] Hebei Univ Technol, Hebei Prov Key Lab Green Chem Technol & High Effi, Tianjin 300130, Peoples R China
来源：
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2008年 / 47卷 / 05期
关键词：
Hydrocarbons;
D O I：
10.1021/ie070789n
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
The synthesis of propylene carbonate (PC) from 1,2-propylene glycol (PG) and CO2 was investigated. Among a series of acetate salts, zinc acetate showed the highest catalytic activity. Under the suitable reaction conditions (reaction temperature, 433 K; weight percentage of catalyst, 2.5%; reaction time, 2 h; molar ratio of acetonitrile to PG, 1.8: 1; and initial pressure Of CO2, 3.0 MPa), the conversion of PG, the yield of PC, and the selectivity of PC were 19.2%, 12.3%, and 64.1%, respectively. The reaction mechanism for the synthesis of PC from CO2 and PG over zinc acetate catalyst was elucidated by means of gas chromatography-mass spectrometry (GC-MS), in situ infrared (IR) analysis, and X-ray diffraction (XRD) characterization.
引用
收藏
页码：1365 / 1369
页数：5
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