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公开(公告)号：US20120184733A1
公开(公告)日：2012-07-19
申请号：US13332834
申请日：2011-12-21
IPC分类号： C07D201/04 , B01J31/02
CPC分类号： C07D201/04 , B01J31/0237 , B01J31/0244 , B01J2231/52 , C07C231/10 , Y02P20/584 , C07C233/07 , C07C233/05
摘要： The present invention provides a method for preparing an amide. The method includes the steps of performing in a reactor including a catalyst composition having a nitrogen-containing heterocyclic compound and sulfuric acid Beckman rearrangement of a ketoxime to form a product stream having the amide, wherein a molar ratio of the nitrogen-containing heterocyclic compound to the sulfuric acid is from 1:1 to 1:8; and separating an organic phase having the amide and an aqueous phase having the catalyst composition from the product stream. The present invention facilitates the regeneration of the catalyst composition with low water content, so as to increase the conversion rate of a ketoxime and the selectivity of an amide.
摘要翻译： 本发明提供一种制备酰胺的方法。 该方法包括以下步骤：在包括具有含氮杂环化合物的催化剂组合物和酮肟的硫酸贝克曼重排反应器的反应器中进行，以形成具有酰胺的产物流，其中含氮杂环化合物与 硫酸为1:1至1:8; 并从产物流中分离出具有酰胺的有机相和具有催化剂组成的水相。 本发明有助于低水含量的催化剂组合物的再生，从而提高酮肟的转化率和酰胺的选择性。
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公开(公告)号：US08962861B2
公开(公告)日：2015-02-24
申请号：US13359851
申请日：2012-01-27
IPC分类号： C07D233/58 , B01J31/02
CPC分类号： B01J31/0239 , B01J31/0244 , B01J2231/52 , C07D233/58
摘要： The present invention provides a catalyst composition and a method for preparing an amide. The catalyst composition of the present invention including a hydroxylamine salt, sulfuric acid, and a nitrogen-containing heterocyclic compound is used for catalyzing a ketoxime to form an amide in the Beckman rearrangement reaction. The preparation of an amide by using the catalyst composition of the present invention has high conversion rate of a ketoxime, high selectivity of an amide and high tolerance to water.
摘要翻译： 本发明提供催化剂组合物和制备酰胺的方法。 包含羟胺盐，硫酸和含氮杂环化合物的本发明的催化剂组合物用于在贝克曼重排反应中催化酮肟以形成酰胺。 通过使用本发明的催化剂组合物制备酰胺具有高的酮肟转化率，高选择性的酰胺和高耐水性。
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公开(公告)号：US20130053575A1
公开(公告)日：2013-02-28
申请号：US13359851
申请日：2012-01-27
IPC分类号： C07D233/58 , B01J31/02
CPC分类号： B01J31/0239 , B01J31/0244 , B01J2231/52 , C07D233/58
摘要： The present invention provides a catalyst composition and a method for preparing an amide. The catalyst composition of the present invention including a hydroxylamine salt, sulfuric acid, and a nitrogen-containing heterocyclic compound is used for catalyzing a ketoxime to form an amide in the Beckman rearrangement reaction. The preparation of an amide by using the catalyst composition of the present invention has high conversion rate of a ketoxime, high selectivity of an amide and high tolerance to water.
摘要翻译： 本发明提供催化剂组合物和制备酰胺的方法。 包含羟胺盐，硫酸和含氮杂环化合物的本发明的催化剂组合物用于在贝克曼重排反应中催化酮肟以形成酰胺。 通过使用本发明的催化剂组合物制备酰胺具有高的酮肟转化率，高选择性的酰胺和高耐水性。
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公开(公告)号：US08865892B2
公开(公告)日：2014-10-21
申请号：US13332834
申请日：2011-12-21
IPC分类号： C07D201/04 , B01J31/02 , C07C231/10
CPC分类号： C07D201/04 , B01J31/0237 , B01J31/0244 , B01J2231/52 , C07C231/10 , Y02P20/584 , C07C233/07 , C07C233/05
摘要： The present invention provides a method for preparing an amide. The method includes the steps of performing in a reactor including a catalyst composition having a nitrogen-containing heterocyclic compound and sulfuric acid Beckman rearrangement of a ketoxime to form a product stream having the amide, wherein a molar ratio of the nitrogen-containing heterocyclic compound to the sulfuric acid is from 1:1 to 1:8; and separating an organic phase having the amide and an aqueous phase having the catalyst composition from the product stream. The present invention facilitates the regeneration of the catalyst composition with low water content, so as to increase the conversion rate of a ketoxime and the selectivity of an amide.
摘要翻译： 本发明提供一种制备酰胺的方法。 该方法包括以下步骤：在包括具有含氮杂环化合物的催化剂组合物和酮肟的硫酸贝克曼重排反应器的反应器中进行，以形成具有酰胺的产物流，其中含氮杂环化合物与 硫酸为1:1至1:8; 并从产物流中分离出具有酰胺的有机相和具有催化剂组成的水相。 本发明有助于低水含量的催化剂组合物的再生，从而提高酮肟的转化率和酰胺的选择性。
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