System and method for continuously producing polyoxymethylene dialky ethers | |
Chen J(陈静); Song HY(宋河远); Xia CG(夏春谷); Kang MR(康美荣); Jin RH(靳荣华) | |
2014-05-15 | |
Rights Holder | 中国科学院兰州化学物理研究所 |
Date Available | 2014-05-15 |
Country | 澳大利亚 |
Abstract | The invention discloses a process system and method for producing polyoxymethylene dialkyl ethers (RO(CH2O)nR, n=1-8) through the continuous acetalation reaction of formaldehyde and aliphatic alcohol catalyzed by an acid ionic liquid. The process system includes an acetalation reaction unit, a product separation unit and a catalyst regeneration unit. The invention employs the separation manner combining the extraction and the rectification, which effectively achieves the separation of the recyclable materials and the catalyst where the recovery rate of the catalyst achieves more than 99%; achieves the separation of the byproduct water from the reaction system by destroying the azeotrope of water, alcohol, aldehyde, and RO(CH2O)nR, where the product separation is easy; the process of the catalyst regeneration is easy, and thus the catalytic cycle is achieved. |
Subject Area | 物理化学与绿色催化 |
Department | OSSO国家重点实验室 |
Application Date | 2012-12-20 |
Patent Number | AU 2012268915 B1 |
Language | 英语 |
Status | 授权 |
Document Type | 专利 |
Identifier | http://ir.licp.cn/handle/362003/6640 |
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. System and method for continuously producing polyoxymethylene dialky ethers. AU 2012268915 B1[P]. 2014-05-15. |
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FI120125AU-授权文本.pdf(1023KB) | 专利 | 授权 | 开放获取 | CC BY-NC-SA | View Application Full Text |
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