发明名称 |
METHOD FOR TREATING AQUEOUS SOLUTIONS COMPRISING ACIDS AND NITRATED COMPOUNDS |
摘要 |
The invention concerns a method for treating an aqueous solution derived from sluicing of crude mononitrated or dinitrated aromatic compounds obtained by nitration of the corresponding aromatic compounds, consisting in: (a) contacting said aqueous solution with said aromatic compound thereby obtaining an aqueous phase and an organic phase; (b) recycling said organic phase in the nitration process; (c) distilling said aqueous phase; (d) recycling the resulting concentrated acid solution in the nitration process; (e) recycling or eliminating the recuperated water after distillation. |
申请公布号 |
EP1003710(B1) |
申请公布日期 |
2002.02.13 |
申请号 |
EP19980942728 |
申请日期 |
1998.08.11 |
申请人 |
RHODIA CHIMIE |
发明人 |
MARION, PHILIPPE;LE BRIS, LOUIS;BERROD, GERARD;DOVERGNE, GEORGES;PERRONA, PHILIPPE |
分类号 |
C07C201/16 |
主分类号 |
C07C201/16 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|