发明名称 |
PROCESS FOR THE PREPARATION OF N,N'-DIFORMYL HYDRAZINE |
摘要 |
The invention provides an improved process for the preparation of N,N'-diformylhydrazine of the formula <IMAGE> from the hydrazine hydrate and formamide, which comprises operating in two temperature steps and under reduced pressure in order to remove rapidly the ammonia formed from the system. A very pure product is obtained in a yield of above 95%, relative to hydrazine hydrate. |
申请公布号 |
EP0028723(B1) |
申请公布日期 |
1982.05.26 |
申请号 |
EP19800106285 |
申请日期 |
1980.10.16 |
申请人 |
HOECHST AKTIENGESELLSCHAFT |
发明人 |
KNORR, HARALD, DR. |
分类号 |
C07C243/28;C07C;C07C67/00;C07C241/00;(IPC1-7):C07C109/08 |
主分类号 |
C07C243/28 |
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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