公开(公告)号：US06790994B2

公开(公告)日：2004-09-14

申请号：US10220821

申请日：2003-01-10

申请人： Vincent Boschat ,  Philippe Leconte

发明人： Vincent Boschat ,  Philippe Leconte

IPC分类号： C07C20948

CPC分类号： C07C253/30 ,  C07C209/48 ,  C07C211/12 ,  C07C255/24

摘要： The present invention relates to a process for the hydrogenation of nitrile functional groups to amine functional groups. It relates more particularly to a process for the complete or partial hydrogenation of dinitrile compounds to diamine or aminonitrile compounds. The invention relates to a process for the hydrogenation of nitrile functional groups to amine functional groups using hydrogen in the presence of a hydrogenation catalyst and of a strong inorganic base preferably deriving from an alkali metal or alkaline earth metal. According to the invention, the process comprises a stage of conditioning the catalyst which consists in mixing the hydrogenation catalyst, a predetermined amount of strong inorganic base and a solvent in which the strong inorganic base is not very soluble. This solvent is an amine compound, such as hexamethylenediamine in the case of the hydrogenation of adiponitrile to HMD and/or aminocapronitrile.

摘要翻译： 本发明涉及将腈官能团氢化成胺官能团的方法。 更具体地涉及二腈化合物完全或部分氢化为二胺或氨腈化合物的方法。本发明涉及使用氢气在氢化催化剂存在下将腈官能团氢化成胺官能团的方法，以及 优选衍生自碱金属或碱土金属的强无机碱。 根据本发明，该方法包括一种调节催化剂的步骤，该催化剂包括将氢化催化剂，预定量的强无机碱和强无机碱不易溶解的溶剂混合。 在己二腈加氢成HMD和/或氨基己腈的情况下，该溶剂是胺化合物，例如六亚甲基二胺。

公开(公告)号：US06232488B1

公开(公告)日：2001-05-15

申请号：US09554887

申请日：2000-09-19

申请人： Vincent Boschat ,  Philippe Leconte ,  Daniel Rochette ,  Lionel Sever

发明人： Vincent Boschat ,  Philippe Leconte ,  Daniel Rochette ,  Lionel Sever

IPC分类号： C07C5974

CPC分类号： C07C253/30 ,  C07C209/48 ,  Y02P20/584 ,  C07C211/12 ,  C07C255/24

摘要： The present invention relates to a process for the hydrogenation of aliphatic dinitriles at least partly into corresponding aminonitriles. More specifically, the invention consists of a continuous process for the hydrogenation of dinitrile, at least partly into corresponding aminonitrile, in the presence of a hydrogenation catalyst which is not dissolved in the reaction medium, characterized in that it is carried out in apparatus comprising means for the continuous separation of the hydrogenate and of the catalyst in a zone in which the gas-liquid transfer is limited or zero, the said separation and the recycling of the catalyst being carried out in a period of time less than or equal to 30 minutes.

摘要翻译： 本发明涉及至少部分地将脂族二腈氢化成相应的氨基腈的方法。 更具体地说，本发明包括在未溶解在反应介质中的氢化催化剂存在下，将二腈至少部分地氢化成相应的氨基腈的连续方法，其特征在于其在包括装置 为了在气液转移受限或零的区域内氢化物和催化剂的连续分离，催化剂的分离和再循环在小于或等于30分钟的时间内进行 。

公开(公告)号：US06521779B1

公开(公告)日：2003-02-18

申请号：US09831148

申请日：2001-09-25

申请人： Vincent Boschat ,  Jean-Pierre Brunelle ,  Bernard Darrier ,  Bernard Chevaljer ,  Jean Louis Bobet

发明人： Vincent Boschat ,  Jean-Pierre Brunelle ,  Bernard Darrier ,  Bernard Chevaljer ,  Jean Louis Bobet

IPC分类号： C07C25524

CPC分类号： C08G69/14 ,  C07C253/30 ,  C07D223/12 ,  C07C255/24

摘要： The invention concerns the hydrogenation in amine function of a nitrile function of a dinitrile to obtain the corresponding aminonitrile. More precisely, the invention concerns the hemihydrogenation of a dinitrile into the corresponding aminonitrile, in a liquid medium, characterized in that it consists in operating in the presence of a Raney nickel or cobalt catalyst containing copper and/or silver and/or gold and in the presence of an alkaline or alkaline-earth metal hydroxide. The hemihydrogenation of adiponitrile provides amino-6 capronitrile, compound which can be easily transformed by cyclization hydrolysis into caprolactam, the starting product for the synthesis of polyamide-6.

摘要翻译： 本发明涉及二丁腈的腈官能团胺官能团的氢化，得到相应的氨基腈。 更准确地说，本发明涉及在液体介质中二腈进入相应的氨基腈的半氢化，其特征在于其在含有铜和/或银和/或金的阮内镍或钴催化剂的存在下操作，并且在 碱性或碱土金属氢氧化物的存在。 己二腈的半氢化提供了通过环化水解容易地转化成己内酰胺（用于合成聚酰胺-6的起始产物）的氨基-6-己内酰胺。

公开(公告)号：US08329955B2

公开(公告)日：2012-12-11

申请号：US12681397

申请日：2008-10-02

申请人： Didier Letourneur ,  Philippe Leconte ,  Jean-Francis Spindler ,  Patrick Lermusiaux ,  Vincent Boschat

发明人： Didier Letourneur ,  Philippe Leconte ,  Jean-Francis Spindler ,  Patrick Lermusiaux ,  Vincent Boschat

IPC分类号： C07C209/48

CPC分类号： C07C209/48 ,  Y02P20/584 ,  C07C211/12

摘要： Amino compounds are continuously prepared by hydrogenation of nitrile compounds in the presence of a catalyst, and more particularly diamines are prepared by the continuous hydrogenation of dinitrile compounds in the presence of a Raney metal catalyst and in the absence of an alcoholic solvent; the subject process includes extracting a portion of the catalyst present in the reaction medium, the extracted portion of the catalyst is submitted to a regeneration for providing a catalyst having a catalytic activity lower than that of a fresh catalyst but still high and the regenerated catalyst is recycled to the reaction medium together with fresh catalyst according to a predetermined ratio, whereby the consumption of catalyst is reduced per ton of amines produced.

摘要翻译： 通过在催化剂存在下氢化腈化合物来连续制备氨基化合物，更特别地，二胺通过在阮内金属催化剂和不存在醇溶剂的情况下连续氢化二腈化合物来制备; 本发明方法包括提取存在于反应介质中的部分催化剂，催化剂的提取部分进行再生以提供催化活性低于新鲜催化剂但仍高的催化剂，再生催化剂为 根据预定比例与新鲜催化剂一起再循环到反应介质中，由此每吨生产的胺减少催化剂的消耗。

公开(公告)号：US20100267989A1

公开(公告)日：2010-10-21

申请号：US12681397

申请日：2008-10-02

申请人： Didier Letourneur ,  Philippe Leconte ,  Jean-Francis Spindler ,  Patrick Lermusiaux ,  Vincent Boschat

发明人： Didier Letourneur ,  Philippe Leconte ,  Jean-Francis Spindler ,  Patrick Lermusiaux ,  Vincent Boschat

IPC分类号： C07C211/12

CPC分类号： C07C209/48 ,  Y02P20/584 ,  C07C211/12

摘要： Amino compounds are continuously prepared by hydrogenation of nitrile compounds in the presence of a catalyst, and more particularly diamines are prepared by the continuous hydrogenation of dinitrile compounds in the presence of a Raney metal catalyst and in the absence of an alcoholic solvent; the subject process includes extracting a portion of the catalyst present in the reaction medium, the extracted portion of the catalyst is submitted to a regeneration for providing a catalyst having a catalytic activity lower than that of a fresh catalyst but still high and the regenerated catalyst is recycled to the reaction medium together with fresh catalyst according to a predetermined ratio, whereby the consumption of catalyst is reduced per ton of amines produced.

摘要翻译： 通过在催化剂存在下氢化腈化合物来连续制备氨基化合物，更特别地，二胺通过在阮内金属催化剂和不存在醇溶剂的情况下连续氢化二腈化合物来制备; 本发明方法包括提取存在于反应介质中的部分催化剂，催化剂的提取部分进行再生以提供催化活性低于新鲜催化剂但仍高的催化剂，再生催化剂为 根据预定比例与新鲜催化剂一起再循环到反应介质中，由此每吨生产的胺减少催化剂的消耗。

公开(公告)号：US06518449B1

公开(公告)日：2003-02-11

申请号：US09582657

申请日：2001-02-09

申请人： Vincent Boschat ,  Philippe Leconte

发明人： Vincent Boschat ,  Philippe Leconte

IPC分类号： B01J2504

CPC分类号： C07C253/30 ,  B01J25/04 ,  C07C209/48 ,  Y02P20/584 ,  C07C211/09 ,  C07C255/24

摘要： The invention concerns a method for regenerating a hydrogenation catalyst, and hydrogenation methods carried out with a catalyst comprising at least one regenerated catalyst. More particularly, it concerns a method for regenerating Raney catalysts used in total or partial hydrogenating processes of compounds comprising nitrile functions into amine functions. Said method consists in treating the spent catalyst with a basic solution and optionally in subjecting said catalyst to hydrogenation before stripping to eliminate the impurities present on the catalyst. Thus, the regenerating method enables to recuperate up to 100% of the catalytic activity.

摘要翻译： 本发明涉及一种再生氢化催化剂的方法，以及用包括至少一种再生催化剂的催化剂进行的氢化方法。 更具体地说，本发明涉及用于将包含腈功能的化合物的全部或部分氢化方法中的阮内催化剂再生用于胺官能团的方法。 所述方法包括用碱性溶液处理废催化剂，任选地在汽提之前使所述催化剂氢化，以消除催化剂上存在的杂质。 因此，再生方法能够回收达100％的催化活性。