发明名称 |
Process for preparing ethylidene bisformamide. |
摘要 |
This invention describes an integrated process for making ethylidene bisformamide in high yield wherein water, which is formed as a reaction by-product, is readily removed from the reaction product mixture without adversely affecting the efficiency of the overall process. The process contemplates isolating the reaction zone from the separation zone and comprises circulating a stream of formamide through a reaction zone containing a solid acidic catalyst and a separation zone; introducing acetaldehyde into the circulating stream of formamide to form a reaction mixture and contacting the reaction mixture with the solid acidic catalyst under reaction conditions sufficient to form a product mixture comprising ethylidene bisformamide and water; and separating water from the product mixture in the separation zone to form a water-depleted product mixture containing ethylidene bisformamide. |
申请公布号 |
EP0613881(A1) |
申请公布日期 |
1994.09.07 |
申请号 |
EP19940103064 |
申请日期 |
1994.03.01 |
申请人 |
AIR PRODUCTS AND CHEMICALS, INC. |
发明人 |
NORDQUIST, ANDREW FRANCIS;PETROCELLI, FRANCIS PETER;PINSCHMIDT, ROBERT KRANTZ, JR.;TSUI, YIN PANG |
分类号 |
B01J31/10;C07B61/00;C07C231/08;C07C233/36 |
主分类号 |
B01J31/10 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|