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1.发明申请公开(公告)号：US20090240077A1
公开(公告)日：2009-09-24
申请号：US12405287
申请日：2009-03-17
IPC分类号： C07C263/10 , C07C209/78
CPC分类号： C07C209/78 , C07C263/10 , C07C211/50 , C07C265/14
摘要： The present invention relates to a process for producing diamines and polyamines of the diphenylmethane series (MDA) by reacting aniline and formaldehyde in the presence of an acid catalyst, wherein the aniline contains in total less than 0.5 wt. %, based on the total weight of aniline, of one or more compounds which contain at least one carbonyl group or of one or more compounds that are formed by reaction of these compounds which contain at least one carbonyl group with aniline.
摘要翻译： 本发明涉及在酸催化剂存在下使苯胺和甲醛反应制备二苯基甲烷系列（MDA）的二胺和多胺的方法，其中苯胺含量总计小于0.5wt。 ％，基于苯胺的总重量，含有至少一个羰基的一种或多种化合物或通过含有至少一个羰基的这些化合物与苯胺反应形成的一种或多种化合物。
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公开(公告)号：US09701617B2
公开(公告)日：2017-07-11
申请号：US12405287
申请日：2009-03-17
IPC分类号： C07C263/10 , C07C209/78
CPC分类号： C07C209/78 , C07C263/10 , C07C211/50 , C07C265/14
摘要： The present invention relates to a process for producing diamines and polyamines of the diphenylmethane series (MDA) by reacting aniline and formaldehyde in the presence of an acid catalyst, wherein the aniline contains in total less than 0.5 wt. %, based on the total weight of aniline, of one or more compounds which contain at least one carbonyl group or of one or more compounds that are formed by reaction of these compounds which contain at least one carbonyl group with aniline.
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3.发明申请Process for the preparation of polyamines of the diphenylmethane series at a low degree of protonation 有权在低质子化程度下制备二苯基甲烷系列的多胺的方法公开(公告)号：US20060287555A1
公开(公告)日：2006-12-21
申请号：US11170624
申请日：2005-06-29
申请人： Torsten Hagen , Daniel Koch , Hans-Georg Pirkl , Fritz Pohl , Stefan Wershofen , Rudolf Uchdorf , Richard Adamson
发明人： Torsten Hagen , Daniel Koch , Hans-Georg Pirkl , Fritz Pohl , Stefan Wershofen , Rudolf Uchdorf , Richard Adamson
IPC分类号： C07C209/26
CPC分类号： C08G18/7664 , C07C209/78 , C07C263/10 , C07C211/50 , C07C265/14
摘要： The invention provides a process for the preparation of polyamines of the diphenylmethane series. This process comprises a) reacting aniline and formaldehyde in a molar ratio of 1.5:1 to 6:1, in the presence of an acid catalyst at temperatures of 20° C. to 100° C., in which the water content in the acid reaction mixture is
摘要翻译： 本发明提供了制备二苯基甲烷系列多胺的方法。 该方法包括a）在酸催化剂存在下，在20℃至100℃的温度下，使摩尔比为1.5:1至6:1的苯胺和甲醛反应，其中酸中的水含量 反应混合物<20wt。 ％，质子化度<15％，b）当对氨基苄基苯胺的重量含量与4,4'-二苯胺的比例时，将反应温度升高至110℃至250℃。 '-MDA在反应混合物中低于1.00的值。
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4.发明授权Process for the preparation of polyamines of the diphenylmethane series at a low degree of protonation 有权在低质子化程度下制备二苯基甲烷系列的多胺的方法公开(公告)号：US07253321B2
公开(公告)日：2007-08-07
申请号：US11170624
申请日：2005-06-29
申请人： Torsten Hagen , Daniel Koch , Hans-Georg Pirkl , Fritz Pohl , Stefan Wershofen , Rudolf Uchdorf , Richard Adamson
发明人： Torsten Hagen , Daniel Koch , Hans-Georg Pirkl , Fritz Pohl , Stefan Wershofen , Rudolf Uchdorf , Richard Adamson
IPC分类号： C07C209/78
CPC分类号： C08G18/7664 , C07C209/78 , C07C263/10 , C07C211/50 , C07C265/14
摘要： The invention provides a process for the preparation of polyamines of the diphenylmethane series. This process comprises a) reacting aniline and formaldehyde in a molar ratio of 1.5:1 to 6:1, in the presence of an acid catalyst at temperatures of 20° C. to 100° C., in which the water content in the acid reaction mixture is
摘要翻译： 本发明提供了制备二苯基甲烷系列多胺的方法。 该方法包括a）在酸催化剂存在下，在20℃至100℃的温度下，使摩尔比为1.5:1至6:1的苯胺和甲醛反应，其中酸中的水含量 反应混合物<20wt。 ％，质子化度<15％，b）当对氨基苄基苯胺的重量含量与4,4'-二苯胺的比例时，将反应温度升高至110℃至250℃。 '-MDA在反应混合物中低于1.00的值。
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5.发明申请Process for the preparation of di- and polyamines of the diphenylmethane series 失效制备二苯基甲烷系列的二胺和多胺的方法公开(公告)号：US20060094897A1
公开(公告)日：2006-05-04
申请号：US11257713
申请日：2005-10-25
IPC分类号： C07C263/04
CPC分类号： C07C263/10 , C07C209/78 , C07C211/50 , C07C265/14
摘要： The present invention relates to a process for the preparation of di- and polyamines of the diphenylmethane series, and to the preparation of di- and polyisocyanates of the diphenylmethane series from these di- and poly-amines. The di- and poly-amines of the diphenylmethane series are prepared by the reaction of aniline and formaldehyde in the presence of hydrochloric acid. In with the present invention, the hydrochloric acid employed contains less than 0.001 wt. % of metal ions which are divalent and/or more than divalent.
摘要翻译： 本发明涉及一种制备二苯基甲烷系列的二胺和多胺的方法，以及由这些二胺和多胺制备二苯基甲烷系列的二异氰酸酯和多异氰酸酯。 二苯基甲烷系列的二胺和多胺通过苯胺和甲醛在盐酸存在下的反应来制备。 在本发明中，所用的盐酸含量小于0.001wt。 ％的二价和/或多于二价的金属离子。
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6.发明申请Process for removing compounds containing phenolic hydroxy groups from aromatic amines 失效从芳香胺除去含有酚羟基的化合物的方法公开(公告)号：US20080139850A1
公开(公告)日：2008-06-12
申请号：US11982959
申请日：2007-11-06
申请人： Knut Sommer , Markus Dugal , Ido Schwarz , Stefan Wershofen , Peter Lehner , Stephan Schubert , Alexandra Grosse-Bowing
发明人： Knut Sommer , Markus Dugal , Ido Schwarz , Stefan Wershofen , Peter Lehner , Stephan Schubert , Alexandra Grosse-Bowing
IPC分类号： C07C209/82
CPC分类号： C07C209/84 , C07C209/36 , C07C211/46
摘要： Compounds containing phenolic hydroxy groups are removed from a gas stream which contains at least one aromatic amine generated during the gas-phase hydrogenation reaction of the corresponding nitroaromatic compounds with hydrogen, by adsorption on a basic solid.
摘要翻译： 从含有至少一种在相应的硝基芳族化合物与氢的气相氢化反应过程中产生的至少一种芳族胺的气流中，除去碱性固体的化合物。
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7.发明授权Process for removing compounds containing phenolic hydroxy groups from aromatic amines 失效从芳香胺除去含有酚羟基的化合物的方法公开(公告)号：US07488850B2
公开(公告)日：2009-02-10
申请号：US11982959
申请日：2007-11-06
申请人： Knut Sommer , Markus Dugal , Ido Schwarz , Stefan Wershofen , Peter Lehner , Stephan Schubert , Alexandra Groβe Böwing
发明人： Knut Sommer , Markus Dugal , Ido Schwarz , Stefan Wershofen , Peter Lehner , Stephan Schubert , Alexandra Groβe Böwing
IPC分类号： C07C209/84
CPC分类号： C07C209/84 , C07C209/36 , C07C211/46
摘要： Compounds containing phenolic hydroxy groups are removed from a gas stream which contains at least one aromatic amine generated during the gas-phase hydrogenation reaction of the corresponding nitroaromatic compounds with hydrogen, by adsorption on a basic solid.
摘要翻译： 从含有至少一种在相应的硝基芳族化合物与氢的气相氢化反应过程中产生的至少一种芳族胺的气流中，除去碱性固体的化合物。
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8.发明申请Process for the preparation of di- and polyamines of the diphenylmethane series 失效制备二苯基甲烷系列的二胺和多胺的方法公开(公告)号：US20060224018A1
公开(公告)日：2006-10-05
申请号：US11392367
申请日：2006-03-28
IPC分类号： C07C209/24
CPC分类号： C07C209/78 , C07C211/50
摘要： Di- and polyamines of the diphenylmethane series are prepared by a) mixing a first portion of aniline with an acid catalyst, b) mixing a second portion of aniline with formaldehyde, and c) mixing and reacting the mixtures prepared in each of steps a) and b). The diamines produced by this process may then be phosgenated to produce the corresponding di-/polyisocyanate.
摘要翻译： 二苯基甲烷系列的二胺和多胺通过以下步骤制备：a）将第一部分苯胺与酸催化剂混合，b）将第二部分苯胺与甲醛混合，和c）将在步骤a）中制备的混合物混合和反应， 和b）。 然后通过该方法产生的二胺可以光气化以产生相应的二 - 多异氰酸酯。
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9.发明授权Process for the preparation of di- and polyamines of the diphenylmethane series 失效制备二苯基甲烷系列的二胺和多胺的方法公开(公告)号：US07205439B2
公开(公告)日：2007-04-17
申请号：US11392367
申请日：2006-03-28
IPC分类号： C07C209/78 , C07C263/10
CPC分类号： C07C209/78 , C07C211/50
摘要： Di- and polyamines of the diphenylmethane series are prepared by a) mixing a first portion of aniline with an acid catalyst, b) mixing a second portion of aniline with formaldehyde, and c) mixing and reacting the mixtures prepared in each of steps a) and b). The diamines produced by this process may then be phosgenated to produce the corresponding di-/polyisocyanate.
摘要翻译： 二苯基甲烷系列的二胺和多胺通过以下步骤制备：a）将第一部分苯胺与酸催化剂混合，b）将第二部分苯胺与甲醛混合，和c）将在步骤a）中制备的混合物混合和反应， 和b）。 然后通过该方法产生的二胺可以光气化以产生相应的二 - 多异氰酸酯。
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公开(公告)号：US20120041223A1
公开(公告)日：2012-02-16
申请号：US13256969
申请日：2010-03-12
申请人： Stefan Wershofen , Stephan Klein , Anton Vidal-Ferran , Elisenda Reixach , Francese Xavier Rius-Ruiz
发明人： Stefan Wershofen , Stephan Klein , Anton Vidal-Ferran , Elisenda Reixach , Francese Xavier Rius-Ruiz
IPC分类号： C07C269/04 , C07C263/04
CPC分类号： C07C269/04 , C07C271/28 , C07C271/30
摘要： The invention is directed to a process for preparing aromatic carbamates which comprises the reaction of an aromatic amine with an organic carbonate in the presence of a catalyst characterized in that Zn4O(OAc)6 is used as catalyst.
摘要翻译： 本发明涉及一种制备芳族氨基甲酸酯的方法，其包括在催化剂存在下芳族胺与有机碳酸酯的反应，其特征在于使用Zn 4 O（OAc）6作为催化剂。
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