发明名称 |
Process for nitrating aromatic hydrocarbons |
摘要 |
An improved process for the nitration of aromatic hydrocarbons is described. The aromatic hydrocarbon (benzene, toluene of particular interest) is reacted with gaseous nitrogen dioxide in the presence of a catalytic amount of sulfuric acid and in the absence of oxygen. The process is highly selective and avoids the formation of undesired by-products. The acid employed as catalyst can be recovered and recycled after removal of water of condensation liberated in the reaction.
|
申请公布号 |
US4123466(A) |
申请公布日期 |
1978.10.31 |
申请号 |
US19770859388 |
申请日期 |
1977.12.12 |
申请人 |
THE UPJOHN COMPANY |
发明人 |
LIN, CHUNG-YUAN;STUBER, FRED A.;ULRICH, HENRI |
分类号 |
C07C201/08;C07C205/06;(IPC1-7):C07B11/00 |
主分类号 |
C07C201/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|