| 专利名称 | METHOD OF SYNTHESIZING TRIOXYMETHYLENE FROM FORMALDEHYDE BY THE CATALYTIC ACTION OF AN IONIC LIQUID | 申请号 | US20060636156 | 专利类型 | US | 公开（公告）号 | US2007135649 | 公开（授权）日 | 2007.06.14 | 申请（专利权）人 | 中国科学院兰州化学物理研究所 | 发明（设计）人 | XIA CHUNGU (CN);TANG ZHONGHUA (CN);CHEN JING (CN);ZHANG XINZHI (CN);LI ZHEN (CN);GUO ENXIU (CN) | 主分类号 | C07D323/06 | IPC主分类号 | C07D323/06;C07D323/00 | 专利有效期 | METHOD OF SYNTHESIZING TRIOXYMETHYLENE FROM FORMALDEHYDE BY THE CATALYTIC ACTION OF AN IONIC LIQUID 至METHOD OF SYNTHESIZING TRIOXYMETHYLENE FROM FORMALDEHYDE BY THE CATALYTIC ACTION OF AN IONIC LIQUID | 法律状态 | 说明书摘要 | The present invention relates to a method of synthesizing trioxymethylene from formaldehyde by the catalytic action of an acidic ionic liquid. In the method, formaldehyde solution with a concentration of 30~80 wt % is used as reactant, and an ionic liquid is used as catalyst. The cation moiety of the catalyst is selected from either imidazoles cation or pyridines cation, and the anion moiety of the catalyst is selected from one of p-tolyl benzene sulfonate, trifluoromethyl sulfonate, and hydrogen sulfate. In the present invention, ionic liquid is used, for the first time, as a catalyst to synthesize trioxymethylene from formaldehyde. The catalyst can be circularly used for continuous sampling. |
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