专利检索 ap:("Johannes Buettner" OR "Holger Allardt" OR "Reinhard Tonder" OR "Reiner Reetz" OR "Michael Reichelt") AND inv:"Reinhard Tonder" 第 1 页

1.

发明授权
Method for extracting nitrocresols from waste water produced in the manufacture of mononitrotoluene and use of said extract 有权
标题翻译：用于在制造单硝基甲苯中生产的废水中提取硝基甲酚的方法和所述提取物的使用

公开(公告)号：US07449610B2

公开(公告)日：2008-11-11

申请号：US10573020

申请日：2004-09-18

申请人： Johannes Buettner , Holger Allardt , Reinhard Tonder , Reiner Reetz , Michael Reichelt

发明人： Johannes Buettner , Holger Allardt , Reinhard Tonder , Reiner Reetz , Michael Reichelt

IPC分类号： C07C205/06 , C02F1/26

CPC分类号： C02F1/26 , C02F2101/38 , C02F2103/36 , C07C201/16 , C07C205/06 , C07C205/22

摘要： The invention provides a process for removing nitrocresols from wastewater of mononitrotoluene preparation, which comprises acidifying the alkaline wastewater of mononitrotoluene preparation with acids to a pH of at most 3 and treating the nitrocresols with an extractant.The invention further provides the preparation of dinitrotoluene by use of the nitrocresol-containing extracts as a feedstock.

摘要翻译： 本发明提供从一硝基甲苯制备废水中除去硝基甲酚的方法，该方法包括用酸将碱性废水酸化至pH为3以下，用萃取剂处理硝基甲酚。本发明还提供了通过使用含有硝基甲酚的提取物作为原料制备二硝基甲苯。