专利详情

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.