Title:
1,2-アルキレンカーボネートを調製するための方法
Document Type and Number:
Japanese Patent JP5378355
Kind Code:
B2
Abstract:
The invention relates to a process for preparing an 1,2-alkylene carbonate comprising (i) contacting carbon dioxide, an 1,2-alkylene oxide and a carbonation catalyst in a reactor to produce a crude reactor effluent containing carbon dioxide, light components, 1,2-alkylene carbonate and catalyst; (ii) separating carbon dioxide and light components from the crude reactor effluent to form a bottoms stream containing 1,2-alkylene carbonate and catalyst; (iii) distilling the bottoms stream formed in step (ii) to form a first distillation overhead stream containing 1,2-alkylene carbonate and a first distillation bottoms stream containing catalyst, and recycling at least part of the first distillation bottoms stream to the reactor; and (iv) distilling the first distillation overhead stream to form a second distillation overhead stream and a second distillation bottoms stream containing 1,2-alkylene carbonate, and recycling at least part of the second distillation overhead stream to the reactor.
Inventors:
Nisbett, Timothy Michael
Baposhiyan, Garo Garbis
Baposhiyan, Garo Garbis
Application Number:
JP2010504639A
Publication Date:
December 25, 2013
Filing Date:
April 17, 2008
Export Citation:
Assignee:
Ciel International Research Mart Shats Pay BV
International Classes:
C07D317/36; C07B61/00
Domestic Patent References:
| JP2004196722A | ||||
| JP6345698A | ||||
| JP1211579A | ||||
| JP56053671A |
Foreign References:
| WO2000020407A1 | ||||
| WO2005003113A1 | ||||
| US4434105 |
Attorney, Agent or Firm:
Kawaguchi International Patent Office
Chihiro Watanabe
Katsuma Osaki
Mitsuaki Tsubokura
Chihiro Watanabe
Katsuma Osaki
Mitsuaki Tsubokura
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