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公开(公告)号：US08329951B2
公开(公告)日：2012-12-11
申请号：US12521873
申请日：2008-01-02
IPC分类号： C09B11/02
CPC分类号： C07C209/78 , C07C209/84 , C07C211/50
摘要： The invention provides a process for preparing diphenylmethanediamine, comprising the steps of a) reacting aniline with formaldehyde in the presence of an acid, b) neutralizing the acid with ammonia, c) separating the reaction mixture from step b) into an aqueous phase and an organic phase, d) treating the aqueous phase obtained in step c) with an oxide or hydroxide of an alkaline earth metal, e) separating off the ammonia obtained in step d).
摘要翻译： 本发明提供一种制备二苯基甲烷二胺的方法，包括以下步骤：a）在酸存在下使苯胺与甲醛反应，b）用氨中和酸，c）将反应混合物从步骤b）分离成水相， 有机相，d）用碱土金属的氧化物或氢氧化物处理步骤c）中获得的水相，e）分离步骤d）中得到的氨。
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公开(公告)号：US20100189623A1
公开(公告)日：2010-07-29
申请号：US12602504
申请日：2008-06-09
IPC分类号： C01B21/24 , C07C211/00 , C01B7/01 , C01B17/90
CPC分类号： C01B7/055 , B01D15/00 , B01J20/18 , C01B7/0718 , C07C209/78 , C07C211/50
摘要： The invention relates to a process for recovering acids from product streams of organic syntheses, which comprises the steps a) neutralization of the acid with a base, b) removal of the base by means of adsorption, c) recovery of the acid.
摘要翻译： 本发明涉及从有机合成产物流中回收酸的方法，其包括步骤a）用碱中和酸，b）通过吸附除去碱，c）回收酸。
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公开(公告)号：US20100105951A1
公开(公告)日：2010-04-29
申请号：US12521873
申请日：2008-01-02
IPC分类号： C07C211/09
CPC分类号： C07C209/78 , C07C209/84 , C07C211/50
摘要： The invention provides a process for preparing diphenylmethanediamine, comprising the steps of a) reacting aniline with formaldehyde in the presence of an acid, b) neutralizing the acid with ammonia, c) separating the reaction mixture from step b) into an aqueous phase and an organic phase, d) treating the aqueous phase obtained in step c) with an oxide or hydroxide of an alkaline earth metal, e) separating off the ammonia obtained in step d).
摘要翻译： 本发明提供一种制备二苯基甲烷二胺的方法，包括以下步骤：a）在酸存在下使苯胺与甲醛反应，b）用氨中和酸，c）将反应混合物从步骤b）分离成水相， 有机相，d）用碱土金属的氧化物或氢氧化物处理步骤c）中获得的水相，e）分离步骤d）中得到的氨。
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公开(公告)号：US08466320B2
公开(公告)日：2013-06-18
申请号：US12602504
申请日：2008-06-09
IPC分类号： C07C211/00
CPC分类号： C01B7/055 , B01D15/00 , B01J20/18 , C01B7/0718 , C07C209/78 , C07C211/50
摘要： The invention relates to a process for recovering acids from product streams of organic syntheses, which comprises the steps a) neutralization of the acid with a base, b) removal of the base by means of adsorption, c) recovery of the acid.
摘要翻译： 本发明涉及从有机合成产物流中回收酸的方法，其包括步骤a）用碱中和酸，b）通过吸附除去碱，c）回收酸。
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5.发明授权Two-stage process for cost-effective deposition of homogeneous catalysts in MDA synthesis 有权在MDA合成中成本有效地沉积均相催化剂的两阶段方法公开(公告)号：US08759585B2
公开(公告)日：2014-06-24
申请号：US13510680
申请日：2010-12-13
IPC分类号： C07C211/00
CPC分类号： C07C209/78 , C07C211/50
摘要： The invention provides a process for preparing diphenylmethanediamine, comprising the steps of: a) reacting aniline with formaldehyde in the presence of an acid, b) neutralizing the predominant part of the acid with ammonia and/or aqueous ammonia solution, c) separating the reaction mixture from step b) into an aqueous phase and an organic phase, d) neutralizing the other part of the acid, present in the organic phase, with aqueous alkali metal hydroxide solution, e) separating the reaction mixture from step d) into an aqueous phase and an organic phase, f) treating the aqueous phase obtained in step c) or optionally the combined aqueous phases from steps c) and e) with at least one oxide or hydroxide of an alkaline earth metal, g) removing the ammonia obtained in step f).
摘要翻译： 本发明提供一种制备二苯基甲烷二胺的方法，包括以下步骤：a）在酸存在下使苯胺与甲醛反应，b）用氨和/或氨水溶液中和酸的主要部分，c）分离反应 步骤b）的混合物进入水相和有机相，d）用碱金属氢氧化物水溶液中和存在于有机相中的酸的另一部分，e）将步骤d）中的反应混合物分离成水 相和有机相，f）用至少一种碱土金属的氧化物或氢氧化物处理步骤c）中获得的水相或步骤c）和e）的合并水相，g）除去在 步骤f）。
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6.发明申请TWO-STAGE PROCESS FOR COST-EFECTIVE DEPOSITION OF HOMOGENEOUS CATALYSTS IN MDA SYNTHESIS 有权用于MDA合成中均相催化剂成本沉积的两阶段过程公开(公告)号：US20120232307A1
公开(公告)日：2012-09-13
申请号：US13510680
申请日：2010-12-13
IPC分类号： C07C209/78 , C07C263/10
CPC分类号： C07C209/78 , C07C211/50
摘要： The invention provides a process for preparing diphenylmethanediamine, comprising the steps of: a) reacting aniline with formaldehyde in the presence of an acid, b) neutralizing the predominant part of the acid with ammonia and/or aqueous ammonia solution, c) separating the reaction mixture from step b) into an aqueous phase and an organic phase, d) neutralizing the other part of the acid, present in the organic phase, with aqueous alkali metal hydroxide solution, e) separating the reaction mixture from step d) into an aqueous phase and an organic phase, f) treating the aqueous phase obtained in step c) or optionally the combined aqueous phases from steps c) and e) with at least one oxide or hydroxide of an alkaline earth metal, g) removing the ammonia obtained in step f).
摘要翻译： 本发明提供一种制备二苯基甲烷二胺的方法，包括以下步骤：a）在酸存在下使苯胺与甲醛反应，b）用氨和/或氨水溶液中和酸的主要部分，c）分离反应 步骤b）的混合物进入水相和有机相，d）用碱金属氢氧化物水溶液中和存在于有机相中的酸的另一部分，e）将步骤d）中的反应混合物分离成水 相和有机相，f）用至少一种碱土金属的氧化物或氢氧化物处理步骤c）中获得的水相或步骤c）和e）的合并水相，g）除去在 步骤f）。
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公开(公告)号：US09006481B2
公开(公告)日：2015-04-14
申请号：US13256541
申请日：2010-03-18
IPC分类号： C07C263/00 , C07B43/10 , C07C263/10 , F28D7/00 , F28D13/00
CPC分类号： C07B43/10 , B01J2219/00873 , C07C263/10 , F28D7/00 , F28D13/00 , C07C265/14 , C07C265/00
摘要： The invention relates to a process for preparing isocyanates by reacting the corresponding amines with phosgene in the gas phase, optionally in the presence of an inert medium, in which phosgene and amine are first evaporated and then superheated further to reaction temperature, and the superheated phosgene and amine are mixed and fed to a reactor in which the phosgene and the amine are converted to the isocyanate, wherein the residence time of the phosgene at temperatures greater than 300° C. is not more than 5 s, and/or the temperature of heat transfer surfaces in contact with phosgene is not more than 20 K above the phosgene temperature to be established. The invention further relates to an apparatus for preparing isocyanates by reacting the corresponding amines with phosgene in the gas phase.
摘要翻译： 本发明涉及通过使气相中相应的胺与光气反应制备异氰酸酯的方法，任选地在惰性介质存在下，首先将光气和胺蒸发，然后进一步过热至反应温度，过热的光气 和胺混合并加入到光气和胺转化为异氰酸酯的反应器中，其中光气在大于300℃的温度下的停留时间不超过5秒，和/或 与光气接触的传热表面不超过要建立的光气温度20K。 本发明还涉及通过气相中相应的胺与光气反应制备异氰酸酯的装置。
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公开(公告)号：US08809575B2
公开(公告)日：2014-08-19
申请号：US13131123
申请日：2009-11-30
申请人： Carsten Knoesche , Torsten Mattke , Patric Mueller
发明人： Carsten Knoesche , Torsten Mattke , Patric Mueller
IPC分类号： C07C263/10
CPC分类号： C07C263/10 , C07C265/00
摘要： The invention relates to a process for preparing isocyanates by reacting the corresponding amines with phosgene in the gas phase, optionally in the presence of an inert medium, in which the amine and the phosgene are first mixed and converted to the isocyanate in a reactor, and in which a reaction gas (1) which comprises isocyanate and hydrogen chloride leaving the reactor is cooled in a quench (3) by adding a liquid quench medium (5) to form a mixture of reaction gas and quench medium as the product stream (7). The quench medium (5) used is a mixture which comprises at least one solvent and isocyanate and which is withdrawn from the preparation process, any solid particles present in the quench medium (5) being removed before addition to the quench (3).
摘要翻译： 本发明涉及一种制备异氰酸酯的方法，任选在惰性介质存在下，在气相中使相应的胺与光气反应，其中胺和光气首先在反应器中混合并转化成异氰酸酯，以及 其中通过加入液体骤冷介质（5）将通过离开反应器的包含异氰酸酯和氯化氢的反应气体（1）在淬火（3）中冷却，形成作为产物流（7）的反应气体和骤冷介质的混合物 ）。 使用的骤冷介质（5）是包含至少一种溶剂和异氰酸酯并从制备过程中排出的混合物，在加入骤冷（3）之前，将骤冷介质（5）中存在的任何固体颗粒除去。
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公开(公告)号：US08779181B2
公开(公告)日：2014-07-15
申请号：US13123787
申请日：2009-10-08
申请人： Torsten Mattke , Carsten Knoesche
发明人： Torsten Mattke , Carsten Knoesche
IPC分类号： C07C263/10 , C07C265/14
CPC分类号： C07C263/10 , C07C265/14
摘要： The invention relates to a process for preparing isocyanates by reacting the corresponding amines with phosgene in the gas phase, if appropriate in the presence of an inert medium, in which the amine and the phosgene are first mixed and converted to the isocyanate in a reactor, and in which a reaction gas which comprises isocyanate and hydrogen chloride and leaves the reactor is cooled in a quench space of a quench by adding a quench medium. The quench medium on addition to the quench space has a temperature above the condensation temperature or the desublimation temperature of the reaction gas.
摘要翻译： 本发明涉及通过在气相中使相应的胺与光气反应制备异氰酸酯的方法，如果合适的话，在惰性介质的存在下，首先将胺和光气混合并转化成反应器中的异氰酸酯， 并且其中包含异氰酸酯和氯化氢并离开反应器的反应气体通过加入骤冷介质在骤冷骤冷空间中冷却。 淬火介质除了淬火空间之外，还具有高于冷凝温度或反应气体的冷凝温度的温度。
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公开(公告)号：US08765996B2
公开(公告)日：2014-07-01
申请号：US13001681
申请日：2009-07-23
申请人： Carsten Knoesche , Torsten Mattke
发明人： Carsten Knoesche , Torsten Mattke
IPC分类号： C07C263/10 , C07C265/14
CPC分类号： C07C263/10 , C07C265/14
摘要： The invention relates to a process for preparing isocyanates by reacting the corresponding amines with phosgene in the gas phase, if appropriate in the presence of at least one inert medium, the phosgene being passed into a reactor (21) through a first inlet and the amine through a second inlet of an ejector (1). The first inlet and the second inlet open into a mixing zone (17) in which the phosgene and the amine are mixed to give a reaction mixture. The mixing zone (17) is followed downstream by a diffuser (19) in which pressure and temperature of the reaction mixture composed of phosgene and amine are increased.
摘要翻译： 本发明涉及通过在气相中使相应的胺与光气反应来制备异氰酸酯的方法，如果合适的话，在至少一种惰性介质的存在下，光气通过第一入口进入反应器（21） 通过喷射器（1）的第二入口。 第一入口和第二入口进入混合区（17），其中将光气和胺混合以产生反应混合物。 混合区（17）在下游被扩散器（19）跟随，其中由光气和胺组成的反应混合物的压力和温度增加。
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