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公开(公告)号：US06323341B1
公开(公告)日：2001-11-27
申请号：US09665592
申请日：2000-09-19
IPC分类号： C07D20116
CPC分类号： C07D201/08 , C07D201/16
摘要： The invention relates to a process for the purification of crude &egr;-caprolactam, wherein crude &egr;-caprolactam prepared by cyclization of alkyl 6-aminocaproate, 6-aminocapronitrile, 6-aminocaproic acid, 6-aminocaproic amide and/or oligomers thereof, is subjected to a crystallization process.
摘要翻译： 本发明涉及纯化ε-己内酰胺的方法，其中将通过6-氨基己酸烷基酯，6-氨基己腈，6-氨基己酸，6-氨基己酰胺和/或其低聚物的环化制备的粗ε-己内酰胺进行 结晶过程。
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公开(公告)号：US06392037B1
公开(公告)日：2002-05-21
申请号：US09925730
申请日：2001-08-10
IPC分类号： C07D20108
CPC分类号： C07D201/08
摘要： Process for the preparation of &egr;-caprolactam comprising treating 6-aminocaproic acid 6-aminocaproate ester, 6-aminocaproamide, oligomers or polymers of these compounds or mixtures comprising at least two of these compounds in a cyclisation reactor in the presence of superheated steam in which a gaseous product stream comprising &egr;-caprolactam, lights and heavies is obtained, wherein the product stream, after condensation and at least partial removal of water and lights, is split into a &egr;-caprolactam stream and a heavies stream containing heavies and &egr;-caprolactam and the heavies stream is recycled to a cyclisation reactor.
摘要翻译： 制备ε-己内酰胺的方法，包括在过热蒸汽存在下，在环化反应器中处理6-氨基己酸6-氨基己酸酯，6-氨基己酰胺，这些化合物的低聚物或包含至少两种这些化合物的混合物或其混合物，其中 得到包含ε-己内酰胺，光和重质物的气态产物流，其中在冷凝和至少部分除去水和光之后，产物流被分裂成ε-己内酰胺流和含有重质和ε-己内酰胺的重质流 并将重质物流再循环至环化反应器。
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公开(公告)号：US5495041A
公开(公告)日：1996-02-27
申请号：US395601
申请日：1995-02-22
IPC分类号： B01J31/24 , C07B61/00 , C07C67/38 , C07C69/533 , C07C51/14
CPC分类号： C07C67/38
摘要： A process is described for the preparation of a pentenoate ester by carbonylation of butadiene or butadiene derivate in the presence of carbon monoxide, a alcohol and a catalyst system comprising palladium, an carboxylic acid and a phosphine ligand, wherein the carboxylic acid is pentenoic acid.
摘要翻译： 描述了在一氧化碳，醇和包含钯，羧酸和膦配体的催化剂体系的存在下丁二烯或丁二烯衍生物的羰基化制备戊烯酸酯的方法，其中羧酸是戊烯酸。
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公开(公告)号：US5585524A
公开(公告)日：1996-12-17
申请号：US494186
申请日：1995-06-23
IPC分类号： B01J23/31 , B01J23/22 , B01J27/19 , B01J27/198 , C07B61/00 , C07C253/24 , C07C253/26 , C07C255/08 , C07C45/49
CPC分类号： B01J27/198 , B01J23/22 , B01J27/19 , C07C253/24 , C07C253/26 , Y02P20/52
摘要： Method for the preparation of an aldehyde in a process in which cobalt is being recycled by:(a) hydroformylating of an ethylenically unsaturated compound with carbon monoxide and hydrogen at a pressure higher than 5 MPa and a temperature higher than 80.degree. C. in the presence of a cobalt carbonyl compound in an organic phase, following which(b) removing cobalt from the organic phase by contacting the organic phase with a polar mixture, which mixture is substantially immiscible with the organic phase, first the pressure being reduced to a pressure lower than 5 MPa and simultaneously or afterwards cooling being applied down to a temperature below 80.degree. C., the polar mixture containing an organic ligand that is soluble in the polar mixture, and after which(c) separating the polar mixture from the organic phase, and after which(d) recovering the aldehyde from the organic phase and(e) contacting the cobalt-containing polar mixture with the organic phase, which phase is immiscible with the polar mixture, in the presence of carbon monoxide and at a pressure higher than 2 MPa, so that at least a part of the cobalt from the polar mixtures passes to the organic phase in the form of cobalt carbonyl, and(f) recycling the organic mixture to step (a).
摘要翻译： 在钴通过以下方法再循环的方法中制备醛的方法：（a）在高于5MPa的压力和高于80℃的温度下，将烯属不饱和化合物与一氧化碳和氢气加氢甲酰化， 在有机相中存在钴羰基化合物，随后（b）通过使有机相与极性混合物接触来除去有机相中的钴，该混合物与有机相基本上不混溶，首先将压力降至压力 低于5MPa，同时或之后冷却至低于80℃的温度，极性混合物含有可溶于极性混合物的有机配体，之后（c）将极性混合物与有机相分离 ，然后（d）从有机相中回收醛，和（e）使含钴极性混合物与有机相接触，该有机相与该相不相混合 极性混合物，在一氧化碳的存在下并且在高于2MPa的压力下，使得来自极性混合物的至少一部分钴以羰基钴的形式进入有机相，和（f）将 有机混合物到步骤（a）。
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公开(公告)号：US4457807A
公开(公告)日：1984-07-03
申请号：US376001
申请日：1982-05-07
IPC分类号： B01D3/14 , C07D201/16 , B01D3/10
CPC分类号： B01D3/14 , C07D201/16 , Y10S203/11
摘要： A process is provided for recovering epsilon-caprolactam of a purity in excess of 99.9 wt. %, in a two-stage distillation operation. Each stage comprises an evaporator and a rectification column having a pressure drop across the theoretical trays thereof of less than about 2.5 MBAR.
摘要翻译： 提供了一种回收纯度超过99.9重量％的ε-己内酰胺的方法。 ％，在两阶段蒸馏操作。 每个阶段包括蒸发器和精馏塔，其整个理论塔板上的压降小于约2.5MARAR。
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公开(公告)号：US06828413B2
公开(公告)日：2004-12-07
申请号：US10177761
申请日：2002-06-24
IPC分类号： C08G6908
摘要： The invention relates to a process for the preparation of a polyamide comprising at least a step in which a composition that comprises at least (a) a primary aminocarbonamide and (b) an aminocarboxylic acid and/or a lactam is polymerised, said composition comprising at least (a) 10-90 wt. % primary aminocarbonamide; (b) 10-90 wt. % aminocarboxylic acid and/or lactam; (c) 0-4 wt. % water; the amounts being relative to the sum of the compounds (a+b+c). Preferably the sum of the compounds (a+b+c) is at least 75 wt. % of the total composition, more preferably 85 wt. %, most preferably 90 wt. %. The polyamide obtained with the process has a &eegr;rel of more than 2.2. The process is eminently suitable for the preparation of polyamide-6 (polycapronamide) from a composition comprising 6-aminocapronamide, 6-aminocaproic acid and/or &egr;-caprolactam. This composition is preferably obtained via the reductive amination of a 5-formylyalerate ester, preferably 5-formylmethylvalerate in water. The 5-formylvalerate ester can for example be obtained from butadiene via (a) a carbonylation and (b) a hydroformylation reaction.
摘要翻译： 本发明涉及一种制备聚酰胺的方法，其至少包括至少包含（a）初级氨基碳酰胺和（b）氨基羧酸和/或内酰胺的组合物聚合的步骤，所述组合物包含 最少（a）10-90wt。 ％伯氨基碳酰胺;（b）10-90重量％ ％氨基羧酸和/或内酰胺;（c）0-4wt。 ％的水;该量相对于化合物（a + b + c）的总和。 化合物（a + b + c）的总和优选为至少75wt。 总组合物的％，更优选85重量％ ％，最优选90wt。 ％。该方法得到的聚酰胺具有超过2.2的成分。该方法特别适用于由包含6-氨基己酸和/或ε-己内酰胺的组合物制备聚酰胺-6（聚己酰胺）。 该组合物优选通过5-水杨酸酯，优选5-甲酰基甲基戊酸酯在水中的还原胺化获得。 例如，可通过（a）羰基化和（b）加氢甲酰化反应从丁二烯得到5-甲酰基戊酸酯。
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公开(公告)号：US06706153B2
公开(公告)日：2004-03-16
申请号：US09226718
申请日：1999-01-07
IPC分类号： B01D338
CPC分类号： C07D201/16
摘要： The invention relates to a process for the separation of a ketoxime or aldoxime from a ketoxime- or aldoxime-containing amide mixture in which the ketoxime or aldoxime is separated from the amide mixture by distillation. This has proved to be a very simple and direct method for separating the ketoxime and/or aldoxime from the desired amide.
摘要翻译： 本发明涉及从含有酮肟或醛肟的酰胺混合物中分离酮肟或醛肟的方法，其中酮肟或醛肟通过蒸馏与酰胺混合物分离。 已证明这是一种非常简单和直接的方法，用于将酮肟和/或醛肟与所需酰胺分离。
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8.发明授权Process for the preparation of epsilon-caprolactam and epsilon-caprolactam precursors 失效ε-己内酰胺和ε-己内酰胺前体的制备方法
公开(公告)号：US5700934A
公开(公告)日：1997-12-23
申请号：US616742
申请日：1996-03-15
IPC分类号： C07D201/08
CPC分类号： C07D201/08
摘要： A process for the preparation of .epsilon.-caprolactam and .epsilon.-caprolactam precursors, starting from the corresponding 5-formylvalerate ester, ammonia and hydrogen in the presence of a hydrogenation catalyst is disclosed, wherein in a step (a) 5-formylvalerate ester is reacted with ammonia under non-hydrogenating conditions, and in a step (b) the reaction product obtained in step (a) is converted to .epsilon.-caprolactam and the .epsilon.-caprolactam precursor(s) under hydrogenating conditions, in the presence of ammonia.
摘要翻译： 公开了在氢化催化剂存在下从相应的5-甲酰基戊酸酯，氨和氢开始制备ε-己内酰胺和ε-己内酰胺前体的方法，其中在步骤（a）中，使5-甲酰基戊酸酯反应 在非氢化条件下用氨，并且在步骤（b）中，在氨的存在下，在氢化条件下将步骤（a）中获得的反应产物转化成ε-己内酰胺和ε-己内酰胺前体。
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9.发明授权
公开(公告)号：US4563308A
公开(公告)日：1986-01-07
申请号：US643026
申请日：1984-08-21
IPC分类号： C07D201/16 , C07D201/04
CPC分类号： C07D201/16
摘要： Process the recovering caprolactam from the residue remaining following the distillation, under reduced pressure, of impure caprolactam obtained by rearrangement of cyclohexanone oxime with sulphuric acid or oleum, by distilling the residue under reduced pressure whereby a caprolactam-containing distillate is obtained; hydrogenating the caprolactam containing distillate in an aqueous medium to obtain a hydrogenation product; and recovering caprolactam from the resulting hydrogenation product.
摘要翻译： 在减压下，通过将环己酮肟与硫酸或发烟硫酸重排而得到的不纯的己内酰胺在减压蒸馏后残留的残余物中处理回收的己内酰胺，通过在减压下蒸馏残余物，得到含己内酰胺的馏出物; 在含水介质中氢化含己内酰胺的馏出物得到氢化产物; 并从所得氢化产物中回收己内酰胺。
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公开(公告)号：US5717089A
公开(公告)日：1998-02-10
申请号：US616748
申请日：1996-03-15
IPC分类号： C07D201/08
CPC分类号： C07D201/08
摘要： Process for the preparation of .epsilon.-caprolactam starting from an aldehyde compound comprising at least one member from among 5-formylvaleric acid, ester or amide in which the aldehyde compound is allowed to react in the presence of ammonia and hydrogen and a subsequent cyclization of the reaction products thus formed (.epsilon.-caprolactam-precursors) to .epsilon.-caprolactam is performed in the presence of water, involved the combination of steps (a) contacting the 5-formylvaleric acid, ester or amide with ammonia and water under non-hydrogenation conditions, (b) contacting the resulting mixture of step (a) with hydrogen in the presence of ammonia under hydrogenation conditions, wherein the water content is greater than 10 wt. %, (c) heating the resulting mixture of step (b) at a temperature between 200.degree. and 350.degree. C. in order to convert the reaction products of step (b) to .epsilon.-caprolactam.
摘要翻译： 从含有至少一种甲酰戊酸，酯或酰胺的成分的醛化合物制备ε-己内酰胺的方法，其中使醛化合物在氨和氢的存在下反应，随后环化 如此形成的（ε-己内酰胺前体）与ε-己内酰胺的反应产物在水的存在下进行，涉及步骤（a）在非氢化条件下使5-甲酰基戊酸，酯或酰胺与氨和水接触 ，（b）在氢气条件下，在氨的存在下使所得步骤（a）的混合物与氢气接触，其中水含量大于10wt。 ％，（c）在200-350℃的温度下加热步骤（b）的所得混合物，以将步骤（b）的反应产物转化成ε-己内酰胺。
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