| System and method for continuously producing polyoxymethylene dimethyl ethers | |
Xia CG(夏春谷) ; Song HY(宋河远); Chen J(陈静); Jin FX(金福祥); Kang MR(康美荣)
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| 2015-10-27 | |
| Rights Holder | Lanzhou Institutea of Chemical Physics, Chinese Academy of Science |
| Country | 美国 |
| Abstract | A system and method for producing polyoxymethylene dimethyl ethers (DMMn) using an aqueous formaldehyde solution as the initial reaction material. The process system has a polymerization reaction unit, an acetalation unit, a product separation unit, and a catalyst regeneration unit. Both polymerization and acetalation reaction are conducted in the presence of an ionic liquid as a catalyst, which can achieve the effect that two different reactions may be catalyzed by the same ionic liquid. The present invention employs a simple catalyst system, and achieves the efficient separation of the catalyst, the byproduct water, the product and the reaction materials in a separation manner combining the extraction and the rectification. |
| Subject Area | 物理化学与绿色催化 |
| Department | OSSO国家重点实验室 |
| Application Date | 2012-10-18 |
| Patent Number | US 9169186 B2 |
| Language | 英语 |
| Status | 授权 |
| Document Type | 专利 |
| Identifier | http://ir.licp.cn/handle/362003/19097 |
| Collection | 羰基合成与选择氧化国家重点实验室（OSSO） |
| Affiliation | Lanzhou Institutea of Chemical Physics, Chinese Academy of Science |
| Recommended Citation GB/T 7714 | Xia CG,Song HY,Chen J,et al. System and method for continuously producing polyoxymethylene dimethyl ethers. US 9169186 B2[P]. 2015-10-27. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| US9169186B2[1].pdf（157KB） | 专利 | 开放获取 | CC BY-NC-SA | View Application Full Text | ||
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