发明授权
- 专利标题： Process for preparing 4-aminodiphenylamine
- 专利标题（中）： 制备4-氨基二苯胺的方法
-
申请号： US10883042申请日： 2004-07-02
-
公开(公告)号： US07084302B2公开(公告)日： 2006-08-01
- 发明人: Xiaogen Feng , Nongyue Wang , Xiaohui Mao , Ruibiao Yu , Qianwen Cheng
- 申请人： Xiaogen Feng , Nongyue Wang , Xiaohui Mao , Ruibiao Yu , Qianwen Cheng
- 申请人地址： CN Shandong
- 专利权人： Sinorgchem Shandong Co., Ltd.
- 当前专利权人： Sinorgchem Shandong Co., Ltd.
- 当前专利权人地址： CN Shandong
- 代理机构： Venable LLP
- 代理商 Marina V. Schneller; Manni Li
- 优先权： CN03148194 20030704; CN03148195 20030704; CN03148196 20030704; CN03148198 20030704; CN03148199 20030704; CN03148200 20030704; CN03148565 20030704; CN03148566 20030704
- 主分类号： C07C209/36
- IPC分类号： C07C209/36
摘要：
A process for preparing 4-aminodiphenylamine using nitrobenzene and aniline as raw materials, a complex base catalyst as the condensation catalyst, and a powdery composite catalyst as the hydrogenation catalyst. The process has 5 process stages including condensation, hydrogenation, separation I, separation II, and refining.
公开/授权文献
- US20050240058A1 Process for preparing 4-aminodiphenylamine 公开/授权日：2005-10-27
信息查询
