发明名称 |
Production of bis(fluoromethyl)ether and difluoromethane |
摘要 |
A process for the production of bis(fluoromethyl)ether which comprises contacting formaldehyde with hydrogen fluoride in the presence of an essentially water-immiscible solvent for the ether. The bis(fluoromethyl)ether may be converted to difluoromethane, optionally after separation from the solvent, preferably by heating the bis(fluoromethyl)ether to elevated temperature in the presence of a metal, metal oxide, metal fluoride or metal oxyfluoride catalyst. |
申请公布号 |
AU3902793(A) |
申请公布日期 |
1993.11.29 |
申请号 |
AU19930039027 |
申请日期 |
1993.04.14 |
申请人 |
IMPERIAL CHEMICAL INDUSTRIES PLC |
发明人 |
DUNCAN CHARLES WOODCOCK;BRIAN THOMAS GRADY |
分类号 |
C07B61/00;C07C17/361;C07C19/08;C07C41/01;C07C41/05;C07C43/12;(IPC1-7):C07C43/12;C07C17/00 |
主分类号 |
C07B61/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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