| 发明名称 |
Process for the preparation of multinuclear aromatic polyamines |
| 摘要 |
The present invention relates to an improved process for the preparation of multinuclear aromatic polyamines by the condensation of aniline with formaldehyde in the presence of water and acid catalysts and working up of the reaction mixture by extraction with a hydrophobic solvent. The acid catalyst obtained in the aqueous phase of extraction is reused.
|
| 申请公布号 |
US4914236(A) |
申请公布日期 |
1990.04.03 |
| 申请号 |
US19880185762 |
申请日期 |
1988.04.25 |
| 申请人 |
BAYER AKTIENGESELLSCHAFT |
发明人 |
KNOEFEL, HARTMUT;BROCKELT, MICHAEL;PETINAUX, MARCEL;UCHDORF, RUDOLF |
| 分类号 |
B01J38/00;C07B61/00;C07C67/00;C07C209/00;C07C209/78;C07C211/00;C07C211/26;C07C211/49;C07C211/57;C08G12/08;C08G73/02;C09B11/02 |
主分类号 |
B01J38/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
