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1.发明授权Process for distillatively removing dinitrotoluene from process wastewater from the preparation of dinitrotoluene by nitrating of toluene with nitrating acid 失效通过用硝酸将硝酸甲苯硝化制备二硝基甲苯从工艺废水中蒸馏除去二硝基甲苯的方法公开(公告)号：US07928270B2
公开(公告)日：2011-04-19
申请号：US12280176
申请日：2007-03-06
IPC分类号： C07C205/00
CPC分类号： B01D3/38 , C07C201/16 , C07C205/06
摘要： A process is proposed for distillatively removing dinitrotoluene from process wastewater from the preparation of dinitrotoluene by nitrating toluene with nitrating acid, which comprises basifying the process wastewater to a pH of >8.5, feeding it to a stripping column in the upper region thereof and stripping it with steam in countercurrent to obtain a vapor stream laden with dinitrotoluene and a bottom stream depleted in dinitrotoluene compared to the process wastewater used.
摘要翻译： 提出了一种从硝化硝酸硝化甲苯制备二硝基甲苯中的二硝基甲苯蒸馏除去二硝基甲苯的方法，其中包括将工艺废水碱化至pH值> 8.5，将其送入其上部区域的汽提塔并将其汽提 与所用的工艺废水相比，蒸汽以逆流方式获得装载有二硝基甲苯的蒸气流和二硝基甲苯消耗的底部流。
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2.发明申请PROCESS FOR THE SEPARATION BY DISTILLATION OF DINITROTOLUENE FROM PROCESS FOR THE SEPARATION BY DISTILLATION OF DINITROTOLUENE FROM PROCESS FOR THE SEPARATION BY DISTILLATION OF DINITROTOLUENE FROM PROCESS WASTEWATER FROM THE PREPARATION OF DINITROTOLUENE BY NITRATION OF TOLUENE BY MEANS OF NITRATING ACID 失效通过从通过硝酸酯的硝化制备硝酸酯由硝酸酯通过硝酸的硝化来分离来自通过从过程废水中分离出来的方法分离的方法分离的过程的方法公开(公告)号：US20090043135A1
公开(公告)日：2009-02-12
申请号：US12280176
申请日：2007-03-06
IPC分类号： C07C201/16
CPC分类号： B01D3/38 , C07C201/16 , C07C205/06
摘要： A process is proposed for distillatively removing dinitrotoluene from process wastewater from the preparation of dinitrotoluene by nitrating toluene with nitrating acid, which comprises basifying the process wastewater to a pH of >8.5, feeding it to a stripping column in the upper region thereof and stripping it with steam in countercurrent to obtain a vapor stream laden with dinitrotoluene and a bottom stream depleted in dinitrotoluene compared to the process wastewater used.
摘要翻译： 提出了一种从硝化硝酸硝化甲苯制备二硝基甲苯中的二硝基甲苯蒸馏除去二硝基甲苯的方法，其中包括将工艺废水碱化至pH值> 8.5，将其送入其上部区域的汽提塔并将其汽提 与所用的工艺废水相比，蒸汽以逆流方式获得装载有二硝基甲苯的蒸气流和二硝基甲苯消耗的底部流。
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公开(公告)号：US20110263892A1
公开(公告)日：2011-10-27
申请号：US13130168
申请日：2009-11-18
申请人： Daniel Breuninger , Johannes Adam , Heiner Schelling , Eckhard Stroefer , Markus Kraemer , Matthias Eiermann , Kai Thiele , Michael Zoellinger , Rolf Pinkos
发明人： Daniel Breuninger , Johannes Adam , Heiner Schelling , Eckhard Stroefer , Markus Kraemer , Matthias Eiermann , Kai Thiele , Michael Zoellinger , Rolf Pinkos
IPC分类号： C07C263/10 , C07C265/14
CPC分类号： C07C263/10 , C07C265/14
摘要： The present invention relates to a process for preparing an isocyanate, comprising hydrogenating a mixture (Gi) comprising an amine in the presence of a hydrogenation catalyst comprising copper to obtain a mixture (Gii) comprising the amine, and reacting the mixture (Gii) with phosgene to obtain a mixture (Giii) comprising the isocyanate. The present invention further relates to the isocyanate preparable by this process.
摘要翻译： 本发明涉及一种制备异氰酸酯的方法，包括在包含铜的氢化催化剂存在下氢化包含胺的混合物（Gi），以获得包含胺的混合物（Gii），并使混合物（Gii）与 光气以获得包含异氰酸酯的混合物（Giii）。 本发明还涉及可通过该方法制备的异氰酸酯。
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4.发明申请PROCESS FOR LIGHTENING THE COLOR OF POLYISOCYANATES WITH OZONE-CONTAINING GAS 审中-公开用含臭氧气体照射聚异氰酸酯的颜色的方法公开(公告)号：US20110028579A1
公开(公告)日：2011-02-03
申请号：US12936042
申请日：2009-03-31
申请人： Michael Zoellinger , Johannes Adam , Markus Kraemer , Johannes Jacobs , Oliver Bey , Peter Zehner , Walter Van Gysel , Claudia Huang Ruobin , Matthias Kroner
发明人： Michael Zoellinger , Johannes Adam , Markus Kraemer , Johannes Jacobs , Oliver Bey , Peter Zehner , Walter Van Gysel , Claudia Huang Ruobin , Matthias Kroner
CPC分类号： C08G18/7664 , C08G18/6677 , C08G18/83 , C08G2101/0025 , C08G2101/0083
摘要： The continuous or quasi-continuous process for lightening organic polyisocyanates with ozone-containing gas, the treatment of the organic polyisocyanate being effected with an ozone-containing gas which furthermore comprises at least one further inert and/or reactive gas can be carried out, according to the invention, in a stirred tank with connected storage tank, in a sieve tray column or in a packed column.
摘要翻译： 用含有臭氧的气体减轻有机多异氰酸酯的连续或准连续方法，还可以进一步包含至少一种其它惰性和/或反应性气体的含臭氧气体处理有机多异氰酸酯，根据 在具有连接的储存罐的搅拌罐中，在筛塔塔或填充塔中。
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公开(公告)号：US08853443B2
公开(公告)日：2014-10-07
申请号：US13130168
申请日：2009-11-18
申请人： Daniel Breuninger , Johannes Adam , Heiner Schelling , Eckhard Stroefer , Markus Kraemer , Matthias Eiermann , Kai Thiele , Michael Zoellinger , Rolf Pinkos
发明人： Daniel Breuninger , Johannes Adam , Heiner Schelling , Eckhard Stroefer , Markus Kraemer , Matthias Eiermann , Kai Thiele , Michael Zoellinger , Rolf Pinkos
IPC分类号： C07C263/00 , C07C265/14 , C07C263/10
CPC分类号： C07C263/10 , C07C265/14
摘要： The present invention relates to a process for preparing an isocyanate, comprising hydrogenating a mixture (Gi) comprising an amine in the presence of a hydrogenation catalyst comprising copper to obtain a mixture (Gii) comprising the amine, and reacting the mixture (Gii) with phosgene to obtain a mixture (Giii) comprising the isocyanate. The present invention further relates to the isocyanate preparable by this process.
摘要翻译： 本发明涉及一种制备异氰酸酯的方法，包括在包含铜的氢化催化剂存在下氢化包含胺的混合物（Gi），以获得包含胺的混合物（Gii），并使混合物（Gii）与 光气以获得包含异氰酸酯的混合物（Giii）。 本发明还涉及可通过该方法制备的异氰酸酯。
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公开(公告)号：US20090292147A1
公开(公告)日：2009-11-26
申请号：US12303477
申请日：2007-06-15
申请人： Thomas Ostrowski , Johannes Adam , Dirk Meckelnburg , Ulrike Mahn , Renata Jovanovic , Achim Loeffler
发明人： Thomas Ostrowski , Johannes Adam , Dirk Meckelnburg , Ulrike Mahn , Renata Jovanovic , Achim Loeffler
IPC分类号： C07C43/10
CPC分类号： C08G65/2696
摘要： The invention relates to a process for the continuous preparation of polyether alcohols by reacting H-functional initiators with alkylene oxides using basic catalysts, wherein at least one initiator is metered with at least one alkylene oxide continuously into a back-mixing reactor and the reaction product is removed continuously from the back-mixing reactor.
摘要翻译： 本发明涉及一种通过使用碱性催化剂使H官能引发剂与烯化氧反应连续制备聚醚醇的方法，其中至少一种引发剂与至少一种环氧烷连续地计量到反混合反应器中，反应产物 从反混合反应器中连续除去。
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