基本信息:
- 专利标题:
- 申请号:DE68904594 申请日:1989-05-12
- 公开(公告)号:DE68904594T2 公开(公告)日:1993-08-19
- 发明人: SATO HIROSHI , HIROSE KENICHI , NAGAI KOICHI , YOSHIOKA HIROSHI , NAGAOKA YOSHIHIKO
- 申请人: SUMITOMO CHEMICAL CO
- 专利权人: SUMITOMO CHEMICAL CO
- 当前专利权人: SUMITOMO CHEMICAL CO
- 优先权: JP12267188 1988-05-18
- 主分类号: B01J23/06
- IPC分类号: B01J23/06 ; B01J23/24 ; C07B61/00 ; B01J21/16 ; C07C67/00 ; C07C201/00 ; C07C201/08 ; C07C205/06 ; C07C205/11 ; C07C205/12 ; C07C205/07
摘要:
Nitrobenzenens are prepared by nitrating benzenes in a vapor phase with dilute or concentrated nitric acid wherein the following (A) or (B) is used as a catalyst: (A) acidic sheet clay minerals ion-exchanged with polyvalent metals, or (B) acidic composite oxides comprising oxides of metals belonging to Group IVA of the Mendeleefs' periodic table and tungsten oxide, molybdenum oxide, niobium oxide or zinc oxide. These catalysts have high catalyst activity and selectivity for vapor phase nitration reaction of benzenes with nitric acid and besides the activity is retained for a long time.
公开/授权文献:
- DE68904594D1 公开/授权日:1993-03-11
信息查询:
EspacenetIPC结构图谱:
B | 作业;运输 |
--B01 | 一般的物理或化学的方法或装置 |
----B01J | 化学或物理方法,例如,催化作用、胶体化学;其有关设备 |
------B01J23/00 | 不包含在B01J21/00组中的,包含金属或金属氧化物或氢氧化物的催化剂 |
--------B01J23/06 | .锌、镉或汞的 |