公开(公告)号：EP2571816A1

公开(公告)日：2013-03-27

申请号：EP11720097.2

申请日：2011-05-17

申请人： BASF SE ,  Verein für Kernverfahrenstechnik und Analytik Rossendorf e.V.

发明人： FRITZ, Rüdiger ,  HAASE, Stefanie ,  ALLARDT, Holger ,  ZÖLLINGER, Michael ,  REETZ, Reiner ,  FRIEDRICH, Hans-Jürgen

IPC分类号： C02F1/467 ,  C02F1/76 ,  C02F101/36

CPC分类号： C02F1/4672 ,  C02F2001/46133 ,  C02F2001/46142 ,  C02F2101/38 ,  C02F2103/36 ,  C02F2103/38 ,  C02F2201/46115

摘要： The invention relates to a method for electrochemically treating aromatic nitro compounds, comprising the following steps: introducing an aqueous composition containing at least one aromatic nitro compound into the anode chamber of an electrolysis cell and carrying out electrolysis at an anodic current density in the range of 0.1 to 10 kA/m
2 and at a cell voltage in the range of 4 to 15 V.

公开(公告)号：EP2571816B1

公开(公告)日：2014-04-30

申请号：EP11720097.2

申请日：2011-05-17

申请人： BASF SE ,  Verein für Kernverfahrenstechnik und Analytik Rossendorf e.V.

发明人： FRITZ, Rüdiger ,  HAASE, Stefanie ,  ALLARDT, Holger ,  ZÖLLINGER, Michael ,  REETZ, Reiner ,  FRIEDRICH, Hans-Jürgen

IPC分类号： C02F1/467 ,  C02F1/461 ,  C02F101/38 ,  C02F103/36 ,  C02F103/38

CPC分类号： C02F1/4672 ,  C02F2001/46133 ,  C02F2001/46142 ,  C02F2101/38 ,  C02F2103/36 ,  C02F2103/38 ,  C02F2201/46115

公开(公告)号：EP2513034A1

公开(公告)日：2012-10-24

申请号：EP10788085.8

申请日：2010-12-13

申请人： BASF SE

发明人： FRITZ, Rüdiger ,  HEMPEL, Renate ,  ZÖLLINGER, Michael ,  MERTEN, Anne-Kathrin ,  ZSCHIESCHANG, Doris ,  HOMANN, Ina ,  GERSDORF, Annett ,  ALLARDT, Holger ,  REETZ, Reiner ,  FLEGEL, Elvira

IPC分类号： C07C201/08 ,  C07C205/06 ,  C07C205/12

CPC分类号： C07C201/16 ,  C07C205/06 ,  C07C205/12

摘要： The invention relates to a method for treating alkaline process waste water from the nitration of aromatic compounds to mono-, di- and trinitroaromatic compounds having a pH value of 7.5 to 13, comprising the steps of a) acidifying the alkaline process waste water by adding concentrated sulfuric acid, which originates from the treatment of the aqueous phase comprising sulfuric acid occurring during nitration, to a pH value below 5, wherein a mixture A is created from a separating organic phase and acidic aqueous phase, b) bringing the mixture A into contact with fresh sludge and c) separating the sludge.

摘要翻译： 本发明涉及一种处理来自芳族化合物硝化成pH值为7.5-13的单，二和三硝基芳族化合物的碱性工艺废水的方法，该方法包括以下步骤：a）通过加入碱性工艺废水 将来自硝化期间发生的包含硫酸的水相的处理的浓硫酸浓缩至pH值低于5，其中由分离的有机相和酸性水相生成混合物A，b）使混合物A进入 接触新鲜污泥和c）分离污泥。

公开(公告)号：EP2513034B1

公开(公告)日：2014-07-30

申请号：EP10788085.8

申请日：2010-12-13

申请人： BASF SE

发明人： FRITZ, Rüdiger ,  HEMPEL, Renate ,  ZÖLLINGER, Michael ,  MERTEN, Anne-Kathrin ,  ZSCHIESCHANG, Doris ,  HOMANN, Ina ,  GERSDORF, Annett ,  ALLARDT, Holger ,  REETZ, Reiner ,  FLEGEL, Elvira

IPC分类号： C07C201/08 ,  C07C205/06 ,  C07C205/12

CPC分类号： C07C201/16 ,  C07C205/06 ,  C07C205/12

公开(公告)号：EP2512993B1

公开(公告)日：2013-11-27

申请号：EP10796007.2

申请日：2010-12-13

申请人： BASF SE

发明人： FRITZ, Rüdiger ,  HEMPEL, Renate ,  ZÖLLINGER, Michael ,  ALLARDT, Holger ,  REETZ, Reiner

IPC分类号： C07C201/08 ,  C01B21/40 ,  C02F9/00

CPC分类号： C02F9/00 ,  C01B21/40 ,  C02F1/20 ,  C02F1/78 ,  C02F2103/36 ,  C02F2209/008 ,  C02F2209/02 ,  C02F2209/06 ,  C07C201/08 ,  C07C205/06

公开(公告)号：EP2670729B1

公开(公告)日：2015-07-22

申请号：EP12703028.6

申请日：2012-01-30

申请人： BASF SE

发明人： ALLARDT, Holger ,  RAICHLE, Andreas ,  REETZ, Reiner ,  BÜTTNER, Johannes ,  ZÖLLINGER, Michael ,  HAASE, Stefanie ,  FRITZ, Rüdiger

IPC分类号： B01J39/02 ,  B01J39/04 ,  B01J39/20 ,  B01J49/00 ,  B01J39/10 ,  C07C201/16

CPC分类号： B01J39/20 ,  B01J39/02 ,  B01J39/04 ,  B01J39/10 ,  B01J49/06 ,  B01J49/53 ,  C07C201/16 ,  C07C205/06

公开(公告)号：EP2513035A1

公开(公告)日：2012-10-24

申请号：EP10793218.8

申请日：2010-12-13

申请人： BASF SE

发明人： FRITZ, Rüdiger ,  HEMPEL, Renate ,  GUSCHEL, Bärbel ,  RICHTER, Helmut ,  MERTEN, Anne-Kathrin ,  ZÖLLINGER, Michael ,  FLEGEL, Elvira ,  ALLARDT, Holger ,  REETZ, Reiner

IPC分类号： C07C201/16 ,  C07C205/06 ,  C07C205/12 ,  B01D11/04 ,  C02F1/26

CPC分类号： C07C201/16 ,  C02F1/26 ,  C02F1/66 ,  C02F2103/36 ,  C07C205/06 ,  C07C205/12

摘要： The invention relates to a method for treating alkaline process waste water from the nitration of aromatic compounds to mono-, di- and trinitroaromatic compounds having a pH value of 7.5 to 13 or a mixture W having a pH value from 6 to 10 of alkaline process waste water and the aqueous destillate of the sulfuric acid concentration, comprising the steps of a) acidifying the alkaline process waste water or the mixture W by adding concentrated sulfuric acid, which originates from the treatment of the aqueous phase containing sulfuric acid that occurs during nitration, to a pH value below 2, wherein a mixture A is created from a separating organic phase and acidic aqueous phase, and b) extracting the mixture A using an aromatic extraction means.

公开(公告)号：EP2512993A1

公开(公告)日：2012-10-24

申请号：EP10796007.2

申请日：2010-12-13

申请人： BASF SE

发明人： FRITZ, Rüdiger ,  HEMPEL, Renate ,  ZÖLLINGER, Michael ,  ALLARDT, Holger ,  REETZ, Reiner

IPC分类号： C02F1/02 ,  C02F1/26 ,  C02F1/66 ,  C02F1/78 ,  C07C201/08 ,  C07C205/06 ,  C07C205/12 ,  B01D53/56 ,  B01D53/96

CPC分类号： C02F9/00 ,  C01B21/40 ,  C02F1/20 ,  C02F1/78 ,  C02F2103/36 ,  C02F2209/008 ,  C02F2209/02 ,  C02F2209/06 ,  C07C201/08 ,  C07C205/06

摘要： The invention relates to a method for recycling alkaline process wastewater comprising nitrite from the nitration of aromatic compounds, wherein the alkaline process wastewater is acidified by adding acids, and the exhaust gas comprising nitrogen oxide released from the acidified process wastewater is recycled, comprising the following steps of: a) acidifying the process wastewater by adding acids to a pH value below 5, wherein a precipitating organic phase, an acidic aqueous phase, and a gaseous phase comprising NO
x are formed, and b) drawing off the gaseous phase comprising NO
x .

公开(公告)号：EP2670729A1

公开(公告)日：2013-12-11

申请号：EP12703028.6

申请日：2012-01-30

申请人： BASF SE

发明人： ALLARDT, Holger ,  RAICHLE, Andreas ,  REETZ, Reiner ,  BÜTTNER, Johannes ,  ZÖLLINGER, Michael ,  HAASE, Stefanie ,  FRITZ, Rüdiger

IPC分类号： C07C201/16 ,  B01J41/04

CPC分类号： B01J39/20 ,  B01J39/02 ,  B01J39/04 ,  B01J39/10 ,  B01J49/06 ,  B01J49/53 ,  C07C201/16 ,  C07C205/06

摘要： Precipitation of nitrohydroxyaromatic salts from the nitrated crude products obtained in the nitration of aromatic compounds after alkaline scrubbing, for example mononitrotoluenes, is prevented by contacting the nitrated crude products with an acidic ion exchanger. The nitrated crude products are preferably selected from a feed to a distillation column, a bottoms circulation stream of a distillation column and a feed to an evaporator.

公开(公告)号：EP1670745B1

公开(公告)日：2012-03-14

申请号：EP04765388.6

申请日：2004-09-18

申请人： BASF SE

发明人： BÜTTNER, Johannes ,  ALLARDT, Holger ,  TONDER, Reinhard ,  REETZ, Reiner ,  REICHELT, Michael

IPC分类号： C07C205/06 ,  C07C201/16 ,  C02F1/26

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

摘要： The invention relates to a method for extracting nitrocresols from the waste water produced in the manufacture of mononitrotoluene. Said method is characterised in that the alkaline waste water produced in the manufacture of mononitrotoluene is acidified using acids with a maximum pH value of 3 and the nitrocresols are treated with an extracting agent. The invention also relates to the production of dinitrotoluene using the extract containing nitrocresols as a feedstock.