发明公开
- 专利标题： Partitioned reduction process for ferromagnetic chromium dioxide
- 专利标题（中）： 氟化二恶英的分解还原过程
-
申请号： EP87104384申请日： 1987-03-25
-
公开(公告)号： EP0239089A3公开(公告)日： 1988-09-07
- 发明人: Crandall, Terry Gene , Chen, Horng-Yih
- 申请人： E.I. DU PONT DE NEMOURS AND COMPANY
- 专利权人： E.I. DU PONT DE NEMOURS AND COMPANY
- 当前专利权人： E.I. DU PONT DE NEMOURS AND COMPANY
- 优先权： US845733 19860328; US2311 19870120
- 主分类号： C01G37/027
- IPC分类号： C01G37/027 ; H01F01/11
摘要：
A new process for synthesis of ferromagnetic chromium dioxide is provided wherein a chromium trioxide solution is mixed with reducing agent that only partially reacts with chromium trioxide during formation of paste below about 100°C, and completes reaction during the heating of paste to temperatures needed to synthesize ferromagnetic chromium dioxide.
信息查询
IPC分类:
