Method for synthesizing polyoxymethylene dimethyl ethers catalyzed by an ionic liquid | |
Chen J(陈静); Song HY(宋河远); Xia CG(夏春谷); Li Z(李臻) | |
2014-08-26 | |
Rights Holder | 中国科学院兰州化学物理研究所 |
Date Available | 2011-11-24 |
Country | 美国 |
Abstract | It is related to a method for preparing polyoxymethylene dimethyl ethers by a continuous acetalation reaction of trioxymethylene and methanol or methylal catalyzed by an ionic liquid. The processing apparatus used in the method includes a reaction zone, a separation zone, a catalyst regeneration zone and a product dehydration zone. A manner of circulating tubular reaction is used, resulting in a high external heat exchange efficiency, a simple structure of design and a low investment. A film evaporator is used, realizing a rapid separation and recycling of the light component, with a high separation efficiency. The separation of the catalyst solution from the crude product is simple, thereby realizing the regeneration and recycling of the catalyst. |
Subject Area | 物理化学与绿色催化 |
Department | OSSO国家重点实验室 |
Application Date | 2011-04-01 |
Patent Number | US 8816131 B2 |
Language | 英语 |
Status | 授权 |
Document Type | 专利 |
Identifier | http://ir.licp.cn/handle/362003/6639 |
Collection | 羰基合成与选择氧化国家重点实验室(OSSO) |
Affiliation | 中国科学院兰州化学物理研究所 |
Recommended Citation GB/T 7714 | Chen J,Song HY,Xia CG,et al. Method for synthesizing polyoxymethylene dimethyl ethers catalyzed by an ionic liquid. US 8816131 B2[P]. 2014-08-26. |
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US8816131B2.pdf(89KB) | 专利 | 授权 | 开放获取 | CC BY-NC-SA | View Application Full Text |
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