System and method for continuously producing polyoxymethylene dialky ethers
文献类型:专利
作者 | Chen J(陈静)![]() ![]() ![]() ![]() |
发表日期 | 2014-05-15 |
专利国别 | 澳大利亚 |
专利号 | AU 2012268915 B1 |
专利类型 | 发明 |
权利人 | 中国科学院兰州化学物理研究所 |
英文摘要 | 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. |
学科主题 | 物理化学与绿色催化 |
公开日期 | 2014-05-15 |
申请日期 | 2012-12-20 |
语种 | 英语 |
源URL | [http://210.77.64.217/handle/362003/6640] ![]() |
专题 | 兰州化学物理研究所_OSSO国家重点实验室 |
作者单位 | 中国科学院兰州化学物理研究所 |
推荐引用方式 GB/T 7714 | Chen J,Song HY,Xia CG,et al. System and method for continuously producing polyoxymethylene dialky ethers. AU 2012268915 B1. 2014-05-15. |
入库方式: OAI收割
来源:兰州化学物理研究所
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