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2. 发明公开

EP2841412A1 VERFAHREN ZUR WÄSCHE VON DINITROTOLUOL 有权
标题翻译：洗黑钱方法二硝基甲苯
公开(公告)号：EP2841412A1
公开(公告)日：2015-03-04
申请号：EP13719491.6
申请日：2013-04-24
申请人： BASF SE , Josef Meissner GmbH & Co. KG
发明人： NETO, Samuel , FRITZ, Rüdiger , HEMPEL, Renate , ALLARDT, Holger , BECKER, Barbara , LESCHINSKI, Julia , AHRENS, Sebastian , HAENDEL, Mirko , POEHLMANN, Juergen , HERMANN, Heinrich
IPC分类号： C07C201/16
CPC分类号： C07C201/16 , C07C205/06
摘要： The invention relates to a method for washing a raw mixture that is produced during the nitration of toluene following separation of the nitrating acid, and that contains dinitrotoluene, nitric acid, nitrogen oxides and sulphuric acid. Said method comprises two washing steps (WS-1iI) and (WS-II) in which i) in a first washing step (WS-1i), the raw mixture is extracted in a wash comprising at least one extraction stage, using a wash acid I that contains nitric acid, nitrogen oxides and sulphuric acid, the wash acid discharged from the first extraction stage (WS-1-1) of the first washing step (WS-1) having a total acid content of 20 to 40 wt.%, and a prewashed raw mixture being obtained, and ii) in a second washing step (WS-II), the prewashed raw mixture containing dinitrotoluene is extracted in a wash comprising at least one extraction stage, using a wash acid II, the wash acid discharged from the first extraction stage (WS-II-1) of the second washing step (WS-II) having a pH value of less than or equal to 4, and a mixture that contains dinitrotoluene and is substantially devoid of nitric acid, sulphuric acid and nitrogen oxides being obtained.

3. 发明授权

EP2512993B1 VERFAHREN ZUR AUFARBEITUNG VON NOx-HALTIGEN ABGASEN AUS ABWASSERSTRÖMEN VON NITRIERANLAGEN 失效
标题翻译：一种用于处理含NOx的废气从nitrators污水STREAM
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

4. 发明公开

EP3060543A1 VERFAHREN ZUR SAUREN WÄSCHE VON DINITROTOLUOL IN GEGENWART VON BLAUSÄURE 有权
标题翻译： VERFAHREN ZUR SAURENWÄSCHEVON DINITROTOLUOL在GEGENWART VONBLAUSÄURE
公开(公告)号：EP3060543A1
公开(公告)日：2016-08-31
申请号：EP14786934.1
申请日：2014-10-22
申请人： BASF SE , Josef Meissner GmbH & Co. KG
发明人： NETO, Samuel , FRITZ, Rüdiger , HEMPEL, Renate , ALLARDT, Holger , DAI, Yuanshen , BECKER, Barbara , AHRENS, Sebastian , LESCHINSKI, Julia , HERMANN, Heinrich , HÄNDEL, Mirko , PÖHLMANN, Jürgen
IPC分类号： C07C201/16 , C07C205/06
CPC分类号： C07C201/16 , B01D11/0488 , B01D11/0492 , B01D2011/002 , C02F1/20 , C02F1/26 , C02F3/00 , C02F2101/18 , C02F2103/36 , C07C205/06
摘要： A process for scrubbing a crude mixture which is obtained in the nitration of toluene after separating off the nitrating acid and comprises dinitrotoluene, nitric acid, nitrogen oxides and sulfuric acid, which comprises two scrubbing steps (WS-I) and (WS II), wherein i) in a first scrubbing step (WS-I), the crude mixture is extracted with a scrubbing acid I comprising nitric acid, nitrogen oxides and sulfuric acid in a scrub comprising at least one extraction stage, where the scrubbing acid discharged from the first extraction stage (WS-I-1) of the first scrubbing step (WS-I) has a total acid content of from 10 to 40% by weight and a content of from 80 to 350 ppm of hydrocyanic acid, giving a prescrubbed crude mixture, ii) in a second scrubbing step (WS-II), the prescrubbed crude mixture comprising dinitrotoluene is extracted with a scrubbing acid II in a scrub comprising at least one, preferably at least 2, extraction stage(s), where the scrubbing acid discharged from the first extraction stage (WS-II-1) of the second scrubbing step (WS-II) has a pH of less than or equal to 4, giving a dinitrotoluene-comprising mixture which is essentially free of nitric acid, sulfuric acid, nitrogen oxides and hydrocyanic acid and has a content of not more than 300 ppm of nitric acid and nitrogen oxides, not more than 3 ppm of sulfate and not more than 50 ppm of hydrocyanic acid.
摘要翻译：分离出硝化酸后硝酸甲苯中得到的粗混合物的方法，包括二硝基甲苯，硝酸，氮氧化物和硫酸，其包括两个洗涤步骤（WS-I）和（WS-II）其中i）在第一洗涤步骤（WS-1）中，所述粗混合物在包含至少一个萃取阶段的洗涤中用包含硝酸，氮氧化物和硫酸的洗涤酸I萃取，其中洗涤酸从第一洗涤步骤（WS-1）的第一提取阶段（WS-I-1）的总酸含量为10至40重量％，含量为80至350ppm的氢氰酸，得到预先混合的粗品混合物，ii）在第二次洗涤步骤（WS-II）中，包含二硝基甲苯的预混合粗混合物在洗涤中用洗涤酸II萃取，所述洗涤包括至少一个，优选至少2个萃取阶段，其中洗涤酸从第一次提取出来在第二洗涤步骤（WS-II）的阶段（WS-II-1）具有小于或等于4的pH，得到基本上不含硝酸，硫酸，氮氧化物的二硝基甲苯混合物，氢氰酸，硝酸和氮氧化物含量不超过300ppm，硫酸盐不超过3ppm，氢氰酸不大于50ppm。

5. 发明公开

EP2513034A1 SAURE SCHLAMMADSORPTION VON DNT-ABWÄSSERN 有权
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。

6. 发明公开

EP3523271A1 KATALYSATORMODIFIKATION MIT ALKALIMETALL-, ERDALKALIMETALL- ODER SELTENERDMETALLIONEN IN DER KONTINUIERLICHEN FLÜSSIGPHASEN-HYDRIERUNG VON NITROVERBINDUNGEN 有权
公开(公告)号：EP3523271A1
公开(公告)日：2019-08-14
申请号：EP17778316.4
申请日：2017-10-10
申请人： BASF SE
发明人： LANGE DE OLIVEIRA, Armin , WUCHER, Barbara , BECHTOLD, Christian , FRIKO, Michael , HEMPEL, Renate
IPC分类号： C07C209/36 , C07C211/51

7. 发明授权

EP2513034B1 SAURE SCHLAMMADSORPTION VON DNT-ABWÄSSERN 有权
标题翻译：酸性污泥吸附DNT废水
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

8. 发明授权

EP3041818B1 METHOD FOR REMOVING HCN FROM CRUDE DINITRO TOLUENE 有权
公开(公告)号：EP3041818B1
公开(公告)日：2018-06-13
申请号：EP14757940.3
申请日：2014-09-01
申请人： BASF SE
发明人： DAI, Yuan Shen , SPUHL, Katharina , HEMPEL, Renate
IPC分类号： C07C201/16 , C07C201/08 , C07C205/06
CPC分类号： C07C201/16 , C07C201/08 , C07C205/06
摘要： A process for the preparation of dintrotoluene which comprises (a) nitrating toluene with a nitrating acid, wherein said nitrating acid is a mixture of nitric acid and sulfuric acid, in one or more nitration steps, and separating the nitrating acid from the process stream thus formed, wherein a crude mixture comprising dinitrotoluene and a fraction of said nitrating acid dissolved therein is obtained, said crude mixture further comprising at least 50 ppm of HCN, and (b) washing the crude dinitrotoluene containing mixture in one or more washing steps, wherein, before the first washing step is carried out, the crude mixture is distilled and/or stripped to remove HCN therefrom, wherein a crude dinitrotoluene containing mixture which is essentially free of HCN is obtained.

9. 发明公开

EP3041818A1 METHOD FOR REMOVING HCN FROM CRUDE DINITRO TOLUENE 有权
标题翻译： VERFAHREN ZUR ENTFERNUNG VON HCN AUS ROHEM DINITRO-TOLUOL
公开(公告)号：EP3041818A1
公开(公告)日：2016-07-13
申请号：EP14757940.3
申请日：2014-09-01
申请人： BASF SE
发明人： DAI, Yuan Shen , SPUHL, Katharina , HEMPEL, Renate
IPC分类号： C07C201/16 , C07C201/08 , C07C205/06
CPC分类号： C07C201/16 , C07C201/08 , C07C205/06
摘要： A process for the preparation of dintrotoluene which comprises (a) nitrating toluene with a nitrating acid, wherein said nitrating acid is a mixture of nitric acid and sulfuric acid, in one or more nitration steps, and separating the nitrating acid from the process stream thus formed, wherein a crude mixture comprising dinitrotoluene and a fraction of said nitrating acid dissolved therein is obtained, said crude mixture further comprising at least 50 ppm of HCN, and (b) washing the crude dinitrotoluene containing mixture in one or more washing steps, wherein, before the first washing step is carried out, the crude mixture is distilled and/or stripped to remove HCN therefrom, wherein a crude dinitrotoluene containing mixture which is essentially free of HCN is obtained.
摘要翻译：一种用于制备二苯并芴的方法，其包括（a）在一个或多个硝化步骤中，硝酸与硝酸反应，其中所述硝酸是硝酸和硫酸的混合物，并将硝酸与工艺物流分离，由此其中所述粗混合物还包含至少50ppm的HCN，和（b）在一个或多个洗涤步骤中洗涤含有二硝基甲苯的粗混合物，其中所述粗制混合物包含二硝基甲苯和所述硝酸的一部分溶解在其中，在进行第一洗涤步骤之前，将粗混合物蒸馏和/或汽提以从其中除去HCN，其中获得基本上不含HCN的粗二硝基甲苯混合物。

10. 发明授权

EP2841412B1 VERFAHREN ZUR WÄSCHE VON DINITROTOLUOL 有权
标题翻译：洗黑钱方法二硝基甲苯
公开(公告)号：EP2841412B1
公开(公告)日：2016-04-06
申请号：EP13719491.6
申请日：2013-04-24
申请人： BASF SE , Josef Meissner GmbH & Co. KG
发明人： NETO, Samuel , FRITZ, Rüdiger , HEMPEL, Renate , ALLARDT, Holger , BECKER, Barbara , LESCHINSKI, Julia , AHRENS, Sebastian , HERMANN, Heinrich , HAENDEL, Mirko , POEHLMANN, Juergen
IPC分类号： C07C201/16
CPC分类号： C07C201/16 , C07C205/06

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