发明名称 |
Process for preparing aniline |
摘要 |
Crude aniline is produced by hydrogenating nitrobenzene in the presence of a catalyst. This crude aniline is then purified by means of a single-step or multi-step distillation process in which aqueous alkali metal hydroxide solution is added to the crude aniline prior to distillation and/or during distillation of the crude aniline. |
申请公布号 |
US2007203364(A1) |
申请公布日期 |
2007.08.30 |
申请号 |
US20070706444 |
申请日期 |
2007.02.15 |
申请人 |
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发明人 |
DUGAL MARKUS;VON GEHLEN FRANZ-ULRICH;WERSHOFEN STEFAN;LAGO ANDRE;LEHNER PETER;MAROTZ BENIE |
分类号 |
C07C209/36 |
主分类号 |
C07C209/36 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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