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1. 发明授权

KR100463477B1 락탐의 정제방법 失效
标题翻译： 락탐의정제방법
公开(公告)号：KR100463477B1
公开(公告)日：2004-12-29
申请号：KR1019997000743
申请日：1997-07-31
申请人： 로디아 폴리아미드 인터미디에이츠
发明人： 가예위베르 , 르꽁뜨필리쁘 , 뻬로나필리쁘
IPC分类号： C07D203/16
CPC分类号： C07D201/16 , C07C253/34 , C07D201/08
摘要： PCT No. PCT/FR97/01426 Sec. 371 Date Apr. 23, 1999 Sec. 102(e) Date Apr. 23, 1999 PCT Filed Jul. 31, 1997 PCT Pub. No. WO98/05636 PCT Pub. Date Feb. 12, 1998A method for purifying lactams by liquid-liquid extraction and/or processing with an ion exchange resin is disclosed. The method is useful for purifying lactams produced by the cyclising vapour-phase hydrolysis of an aliphatic aminonitrile, and comprises removing the major part of the ammonia before subjecting the lactam to liquid-liquid extraction by means of a solvent including an acidic solvent and/or contacting said lactam with a cation exchange resin. In most applications of the lactam, it is preferable to carry out a hydrogenation step on the compounds of the lactam solution comprising unsaturations, prior to or in addition to the liquid-liquid extraction step and/or the acidic resin contact step. The purification method may also include an oxidation step in addition to or instead of the hydrogenation step. Said method is preferably combined with a distillation step in the presence of a base.
摘要翻译： PCT No.PCT / FR97 / 01426 Sec。 371日期1999年4月23日Sec。 102（e）日期1999年4月23日PCT申请日1997年7月31日PCT Pub。 WO98 / 05636 PCT Pub。日期1998年2月12日公开了一种通过液 - 液萃取和/或用离子交换树脂处理来净化内酰胺的方法。该方法用于纯化由脂族氨基腈的环化汽相水解产生的内酰胺，并且包括在使内酰胺通过包含酸性溶剂的溶剂进行液 - 液萃取之前除去大部分氨，和/或使所述内酰胺与阳离子交换树脂接触。在内酰胺的大多数应用中，优选在液 - 液萃取步骤和/或酸性树脂接触步骤之前或除此之外，在包含不饱和基团的内酰胺溶液的化合物上进行氢化步骤。除氢化步骤之外或者代替氢化步骤，纯化方法还可以包括氧化步骤。所述方法优选与在碱存在下的蒸馏步骤组合。

2. 发明公开

KR1020000029665A 락탐의 정제방법 失效
标题翻译：净化LACTAMS的方法
公开(公告)号：KR1020000029665A
公开(公告)日：2000-05-25
申请号：KR1019997000743
申请日：1997-07-31
申请人： 로디아 폴리아미드 인터미디에이츠
发明人： 가예위베르 , 르꽁뜨필리쁘 , 뻬로나필리쁘
IPC分类号： C07D203/16
CPC分类号： C07D201/16 , C07C253/34 , C07D201/08
摘要： PURPOSE: A method for purifying lactams by liquid-liquid extraction and/or processing with an ion exchange resin is provided which is useful for purifying lactams produced by the cyclizing vapor-phase hydrolysis of an aliphatic aminonitrile. CONSTITUTION: The purification method of lactams comprises removing the major part of the ammonia before subjecting the lactam to liquid-liquid extraction by means of a solvent including an acidic solvent and/or contacting the lactam with a cation exchange resin. In most applications of the lactam, it is preferable to carry out a hydrogenation step on the compounds of the lactam solution comprising unsaturation, prior to or in addition to the liquid-liquid extraction step and/or the acidic resin contact step.
摘要翻译：目的：提供通过液 - 液萃取和/或用离子交换树脂处理来纯化内酰胺的方法，其用于纯化通过脂族氨基腈的环化气相水解产生的内酰胺。构成：内酰胺的纯化方法包括在使内酰胺通过包含酸性溶剂的溶剂进行液 - 液萃取和/或使内酰胺与阳离子交换树脂接触之前除去氨的主要部分。在内酰胺的大多数应用中，优选在液 - 液萃取步骤和/或酸性树脂接触步骤之前或之后对包含不饱和的内酰胺溶液的化合物进行氢化步骤。

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