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公开(公告)号：US20110284391A1
公开(公告)日：2011-11-24
申请号：US13111337
申请日：2011-05-19
申请人： Rüdiger FRITZ , Stefanie Haase , Holger Allardt , Michael Zoellinger , Reiner Reetz , Hans-Juergen Friedrich
发明人： Rüdiger FRITZ , Stefanie Haase , Holger Allardt , Michael Zoellinger , Reiner Reetz , Hans-Juergen Friedrich
CPC分类号： C25B13/08 , C02F1/4672 , C02F1/725 , C02F2001/46147 , C02F2001/46157 , C02F2101/166 , C02F2101/322 , C02F2101/345 , C02F2101/38 , C02F2103/36 , C02F2201/46115 , C02F2201/46135 , C02F2201/4614 , C02F2201/4617 , C02F2201/4618 , C02F2209/02 , C25B9/08 , C25B11/0415 , C25B11/0447
摘要： The invention relates to a process for the electrochemical treatment of aromatic nitro compounds, which comprises the steps: introducing an aqueous composition comprising at least one aromatic nitro compound into the anode space of an electrolysis cell and carrying out an electrolysis at an anodic current density in the range from 0.1 to 10 kA/m2 and a cell potential in the range from 4 to 15 V.
摘要翻译： 本发明涉及芳族硝基化合物的电化学处理方法，其包括以下步骤：将包含至少一种芳族硝基化合物的含水组合物引入电解池的阳极空间，并以阳极电流密度进行电解 0.1〜10kA / m2的范围，电池电位在4〜15V的范围内。
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公开(公告)号：US20120248038A1
公开(公告)日：2012-10-04
申请号：US13516280
申请日：2010-12-13
申请人： Ruediger Fritz , Renate Hempel , Baerbel Guschel , Helmut Richter , Anne-Kathrin Merten , Michael Zoellinger , Elvira Flegel , Holger Allardt , Reiner Reetz
发明人： Ruediger Fritz , Renate Hempel , Baerbel Guschel , Helmut Richter , Anne-Kathrin Merten , Michael Zoellinger , Elvira Flegel , Holger Allardt , Reiner Reetz
CPC分类号： C07C201/16 , C02F1/26 , C02F1/66 , C02F2103/36 , C07C205/06 , C07C205/12
摘要： A process for working up alkaline process wastewater from the nitration of aromatic compounds to mono-, di- and trinitroaromatics with a pH of 7.5 to 13 or a mixture W with a pH of 6 to 10 of alkaline process wastewater and the aqueous distillate of the sulfuric acid concentration, comprising the steps of a) acidifying the alkaline process wastewater or the mixture W by adding concentrated sulfuric acid which originates from the workup of the aqueous, sulfuric acid-containing phase obtained in the nitration to a pH below 2, which forms a mixture A consisting of organic phase which separates out and acidic aqueous phase, and b) extracting the mixture A with an aromatic extractant.
摘要翻译： 用于将碱性工艺废水从硝化芳香族化合物转化为pH为7.5至13的单，二和三硝基溴化物或碱性工艺废水的pH为6至10的混合物W和碱性工艺废水的含水馏出物 硫酸浓度，包括以下步骤：a）通过将从硝化中获得的含水硫酸相的后处理产生的浓硫酸加入到低于2的pH下，使碱性工艺废水或混合物W酸化，形成 由分离出酸性水相的有机相组成的混合物A，和b）用芳族萃取剂萃取混合物A.
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3.发明授权公开(公告)号：US09630866B2
公开(公告)日：2017-04-25
申请号：US13511256
申请日：2010-12-13
IPC分类号： C02F1/66 , C02F9/00 , C01B21/40 , C07C201/08 , C02F1/20 , C02F1/78 , C02F103/36
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 present invention relates to a process for workup of nitrite-comprising alkaline process wastewaters from the nitration of aromatic compounds, wherein the alkaline process wastewater is acidified by addition of acids and the offgas which comprises nitrogen oxides and escapes from the acidified process wastewater is worked up, comprising the steps of a) acidifying the process wastewater by adding acid to a pH below 5, which forms an organic phase which separates out, an acidic aqueous phase and a gaseous NOx-containing phase, and b) removing the gaseous NOx-containing phase.
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公开(公告)号：US08529771B2
公开(公告)日：2013-09-10
申请号：US13514648
申请日：2010-12-13
申请人： Ruediger Fritz , Renate Hempel , Michael Zoellinger , Anne-Kathrin Merten , Doris Zschieschang , Ina Homann , Annett Gersdorf , Holger Allardt , Reiner Reetz , Elvira Flegel
发明人： Ruediger Fritz , Renate Hempel , Michael Zoellinger , Anne-Kathrin Merten , Doris Zschieschang , Ina Homann , Annett Gersdorf , Holger Allardt , Reiner Reetz , Elvira Flegel
CPC分类号： C07C201/16 , C07C205/06 , C07C205/12
摘要： A process for working up alkaline process wastewater from the nitration of aromatic compounds to mono-, di- and trinitroaromatics, said alkaline process wastewater having a pH of 7.5 to 13, comprising the steps of a) acidifying the alkaline process wastewater by adding concentrated sulfuric acid which originates from the workup of the aqueous, sulfuric acid-containing phase obtained in the nitration to a pH below 5, which forms a mixture A consisting of organic phase which separates out and acidic aqueous phase, b) contacting the mixture A with fresh sewage sludge, and c) removing the sewage sludge.
摘要翻译： 所述碱性工艺废水的pH为7.5至13，包括以下步骤：a）通过加入浓硫酸来酸化碱性工艺废水，所述方法是将芳香族化合物硝化为单，二和三硝基芳烃的碱性工艺废水 酸，其来源于在硝化中获得的含水硫酸相的pH值低于5，其形成由分离出酸性水相的有机相组成的混合物A，b）将混合物A与新鲜的 污水污泥，以及c）清除污水污泥。
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公开(公告)号：US20120234773A1
公开(公告)日：2012-09-20
申请号：US13514648
申请日：2010-12-13
申请人： Ruediger Fritz , Renate Hempel , Michael Zoellinger , Anne-Kathrin Merten , Doris Zschieschang , Ina Homann , Annett Gersdorf , Holger Allardt , Reiner Reetz , Elvira Flegel
发明人： Ruediger Fritz , Renate Hempel , Michael Zoellinger , Anne-Kathrin Merten , Doris Zschieschang , Ina Homann , Annett Gersdorf , Holger Allardt , Reiner Reetz , Elvira Flegel
CPC分类号： C07C201/16 , C07C205/06 , C07C205/12
摘要： A process for working up alkaline process wastewater from the nitration of aromatic compounds to mono-, di- and trinitroaromatics, said alkaline process wastewater having a pH of 7.5 to 13, comprising the steps of a) acidifying the alkaline process wastewater by adding concentrated sulfuric acid which originates from the workup of the aqueous, sulfuric acid-containing phase obtained in the nitration to a pH below 5, which forms a mixture A consisting of organic phase which separates out and acidic aqueous phase, b) contacting the mixture A with fresh sewage sludge, and c) removing the sewage sludge.
摘要翻译： 所述碱性工艺废水的pH为7.5至13，包括以下步骤：a）通过加入浓硫酸来酸化碱性工艺废水，所述方法是将芳香族化合物硝化为单，二和三硝基芳烃的碱性工艺废水 酸，其来源于在硝化中获得的含水硫酸相的pH值低于5，其形成由分离出酸性水相的有机相组成的混合物A，b）将混合物A与新鲜的 污水污泥，以及c）清除污水污泥。
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6.发明申请公开(公告)号：US20120228218A1
公开(公告)日：2012-09-13
申请号：US13511256
申请日：2010-12-13
IPC分类号： C02F1/20 , C02F9/14 , C02F1/26 , C02F101/16
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 present invention relates to a process for workup of nitrite-comprising alkaline process wastewaters from the nitration of aromatic compounds, wherein the alkaline process wastewater is acidified by addition of acids and the offgas which comprises nitrogen oxides and escapes from the acidified process wastewater is worked up, comprising the steps of a) acidifying the process wastewater by adding acid to a pH below 5, which forms an organic phase which separates out, an acidic aqueous phase and a gaseous NOx-containing phase, and b) removing the gaseous NOx-containing phase.
摘要翻译： 本发明涉及一种用于处理来自硝化芳族化合物的亚硝酸盐碱性工艺废水的方法，其中碱性工艺废水通过加入酸而被酸化，并且包括氮氧化物和从酸化过程废水逸出的废气被加工 包括以下步骤：a）通过将酸加入到低于5的pH酸化所述工艺废水，所述pH低于5，其形成分离出的有机相，酸性水相和含NO x的气态相，以及b）除去所述NOx- 含有相。
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公开(公告)号：US20120215029A1
公开(公告)日：2012-08-23
申请号：US13311371
申请日：2011-12-05
申请人： Stefanie Haase , Dusko Kadijevic , Anne-Kathrin Merten , Michael Zoellinger , Andreas Raichle , Alexander Schocker , Sandra Mühlbeyer , Olaf Wiedenhoff , Joana Coelho Tsou
发明人： Stefanie Haase , Dusko Kadijevic , Anne-Kathrin Merten , Michael Zoellinger , Andreas Raichle , Alexander Schocker , Sandra Mühlbeyer , Olaf Wiedenhoff , Joana Coelho Tsou
IPC分类号： C07C209/36 , B01J19/00
CPC分类号： C07C229/36 , B01J8/228 , B01J21/066 , B01J23/755 , B01J35/023 , B01J37/0036 , B01J2208/00132 , B01J2208/00752 , B01J2219/00202 , B01J2219/00231 , B01J2219/0024 , C07C209/34 , C07C209/36 , C07C211/58 , C07C211/51 , C07C211/46 , C07C211/47 , C07C211/27
摘要： A process for preparing aromatic amines by hydrogenation of nitroaromatics in the presence of catalysts, forming a fluid, amine-comprising reaction mixture in a reactor, wherein chromatographic analysis of the reaction mixture is carried out to determine the concentration of nitro and nitroso compounds in the reaction mixture.
摘要翻译： 一种通过在催化剂存在下氢化硝基芳族化合物制备芳族胺的方法，在反应器中形成含流体的含胺反应混合物，其中进行反应混合物的色谱分析以测定硝基和亚硝基化合物的浓度 反应混合物。
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公开(公告)号：US08981155B2
公开(公告)日：2015-03-17
申请号：US13311371
申请日：2011-12-05
申请人： Stefanie Haase , Dusko Kadijevic , Anne-Kathrin Merten , Michael Zoellinger , Andreas Raichle , Alexander Schocker , Sandra Mühlbeyer , Olaf Wiedenhoff , Joana Coelho Tsou
发明人： Stefanie Haase , Dusko Kadijevic , Anne-Kathrin Merten , Michael Zoellinger , Andreas Raichle , Alexander Schocker , Sandra Mühlbeyer , Olaf Wiedenhoff , Joana Coelho Tsou
IPC分类号： C07C209/00 , C07C229/36 , C07C209/34 , C07C209/36 , B01J8/22 , B01J21/06 , B01J23/755 , B01J35/02 , B01J37/00
CPC分类号： C07C229/36 , B01J8/228 , B01J21/066 , B01J23/755 , B01J35/023 , B01J37/0036 , B01J2208/00132 , B01J2208/00752 , B01J2219/00202 , B01J2219/00231 , B01J2219/0024 , C07C209/34 , C07C209/36 , C07C211/58 , C07C211/51 , C07C211/46 , C07C211/47 , C07C211/27
摘要： A process for preparing aromatic amines by hydrogenation of nitroaromatics in the presence of catalysts, forming a fluid, amine-comprising reaction mixture in a reactor, wherein chromatographic analysis of the reaction mixture is carried out to determine the concentration of nitro and nitroso compounds in the reaction mixture.
摘要翻译： 一种通过在催化剂存在下氢化硝基芳族化合物制备芳族胺的方法，在反应器中形成含流体的含胺反应混合物，其中进行反应混合物的色谱分析以测定硝基和亚硝基化合物的浓度 反应混合物。
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9.发明授权公开(公告)号：US08609899B2
公开(公告)日：2013-12-17
申请号：US13109399
申请日：2011-05-17
申请人： Andreas Raichle , Joana Coelho Tsou , Samuel Neto , Ulrich Penzel , Steffen Oehlenschlaeger , Michael Zoellinger , Holgar Braunsberg , Stefanie Haase , Johannes Buettner
发明人： Andreas Raichle , Joana Coelho Tsou , Samuel Neto , Ulrich Penzel , Steffen Oehlenschlaeger , Michael Zoellinger , Holgar Braunsberg , Stefanie Haase , Johannes Buettner
IPC分类号： C07C209/00
CPC分类号： C07C209/36 , C07C211/49
摘要： The invention relates to a process for the continuous preparation of toluenediamine by liquid-phase hydrogenation of dinitrotoluene by means of hydrogen in the presence of a suspended, nickel-comprising catalyst in a reactor with a product isolation unit downstream of the reactor to give a product output from the reactor comprising a liquid phase comprising toluenediamine and dinitrotoluene, in which the nickel-comprising catalyst is suspended, wherein the concentration of dinitrotoluene in the liquid phase of the product output from the reactor in the region between the reactor and the downstream product isolation unit is set to a value in the range from 1 to 200 ppm by weight, based on the total weight of the liquid phase of the product output from the reactor.
摘要翻译： 本发明涉及通过在反应器中的悬浮的含镍催化剂存在下，借助于氢气对二硝基甲苯进行液相氢化来连续制备甲苯二胺的方法，该反应器具有在反应器下游的产物隔离单元以产生产物 从包括甲苯二胺和二硝基甲苯的液相的反应器输出，其中悬浮有含镍催化剂，其中在反应器和下游产物隔离之间的区域中从反应器输出的产物的液相中二硝基甲苯的浓度 基于从反应器输出的产物的液相的总重量，单位设定在1至200重量ppm的范围内的值。
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公开(公告)号：US20120046497A1
公开(公告)日：2012-02-23
申请号：US13266049
申请日：2010-04-20
申请人： Eckhard Stroefer , Heiner Schelling , Robert Reinhardt , Michael Zoellinger , Daniel Breuninger , Markus Kraemer , Kai Thiele , Peter Van Den Abeel
发明人： Eckhard Stroefer , Heiner Schelling , Robert Reinhardt , Michael Zoellinger , Daniel Breuninger , Markus Kraemer , Kai Thiele , Peter Van Den Abeel
IPC分类号： C07C209/60
CPC分类号： C07C209/78 , C07C263/10 , C07C211/50 , C07C265/14
摘要： The invention relates to a process for preparing methylenediphenyldiamine (MDA) by reacting formaldehyde and aniline in the presence of an acidic catalyst, wherein the oxygen content in the process for preparing MDA is
摘要翻译： 本发明涉及一种在酸性催化剂存在下使甲醛和苯胺反应制备亚甲基二苯基二胺（MDA）的方法，其中基于该方法中存在的所有化合物，制备MDA的方法中的氧含量为<10000ppm。 本发明还涉及MDA对亚甲基二苯基二异氰酸酯（MDI）的光气化。
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