发明名称 |
METHOD FOR SYNTHESIZING POLYMETHOXY DIMETHYL ETHERS BY IONIC LIQUID CATALYSIS |
摘要 |
Disclosed is a method for preparing polymethoxy dimethyl ethers, which comprises performing continuous acetalization reaction of trioxymethylene and methanol or methylal by ionic liquid catalysis. The equipment used in the method includes a reaction zone, a separation zone, a catalyst regeneration zone and a product dehydration zone. The method works in the manner of tube reaction with circulation, whose advantages are high external heat exchanging efficiency, simple design structure and low investment. The method uses the film evaporator to achieve rapid separation and cyclic use of the light component. The separation of the solution of catalyst and the crude product is simple, and the regeneration and cyclic use of catalyst are realized. |
申请公布号 |
WO2011143975(A1) |
申请公布日期 |
2011.11.24 |
申请号 |
WO2011CN72377 |
申请日期 |
2011.04.01 |
申请人 |
LANZHOU INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCES;CHEN, JING;SONG, HEYUAN;XIA, CHUNGU;LI, ZHEN |
发明人 |
CHEN, JING;SONG, HEYUAN;XIA, CHUNGU;LI, ZHEN |
分类号 |
C07C41/56;B01J31/02;C07C41/50;C07C43/30;C07C43/303 |
主分类号 |
C07C41/56 |
代理机构 |
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代理人 |
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地址 |
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