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公开(公告)号：EP2930166A4
公开(公告)日：2016-01-06
申请号：EP12889458
申请日：2012-12-07
发明人： CHEN CHANGSHENG , JIANG JINKE , CHEN ZHONGYING , CUI JIAOYING , WANG JING , LI FUGUO , LV CHENGGE , ZHAO WENJUAN , LI YUAN , HUA WEIQI
IPC分类号： C07C211/35 , C07C209/48 , C07C209/52
CPC分类号： C07C253/30 , C07C209/48 , C07C209/52 , C07C2101/14 , C07C2601/14 , C07C255/46 , C07C211/36
摘要： The present invention provides a method for preparing 3-aminomethyl-3,5,5-trimethyl cyclohexylamine. The method comprises: a) reacting 3-cyano-3,5,5-trimethyl cyclohexanone with excess primary amine as well as removing the water generated from the reaction, so that IPN is substantially converted into imine compounds; b) in the presence of an ammonolysis catalyst, mixing the product of step a) with liquid ammonia, making the imine compound perform ammonolysis reaction to generate 3-cyano-3,5,5-trimethyl cyclohexylimine and the primary amine; and c) in the presence of hydrogen and a hydrogenation catalyst, hydrogenating 3-cyano-3,5,5-trimethyl cyclohexylimine obtained in step b) to obtain 3-aminomethyl-3,5,5-trimethyl cyclohexylamine. The method of the present invention avoids the generation of 3,5,5-trimethyl cyclohexanol and 3-aminomethyl-3,5,5-trimethyl cyclohexanol as the major by-products in the prior art, thereby improving the yield of 3-aminomethyl-3,5,5-trimethyl cyclohexylamine.
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公开(公告)号：EP2684862A4
公开(公告)日：2015-08-12
申请号：EP12726714
申请日：2012-04-01
IPC分类号： C07C211/14 , C07C209/48
CPC分类号： C07C209/48 , C07C211/14
摘要： The invention discloses a method for preparation of N-(2-aminoethyl)ethane-1,2-diamine (DETA), which comprises steps of preparing a mixture by dissolving iminodiacetonitrile (IDAN) in an organic solvent and adding an anion exchange resin of OH type and a stabilizing agent for IDAN, subjecting the mixture to hydrogenation in the presence of a hydrogenation catalyst and a first aid at a temperature of 50-150°C, preferably 70-90°C, and under a pressure of 5-25 Mpa, preferably 9-14 Mpa to obtain DETA. In comparison with the known methods, the process of the present invention may inhibit the decomposition of IDAN, eliminate the poisoning factors for the catalyst, so as to prolong the service life of the catalyst, improve the efficiency of the process and obtain the product with high purity.
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公开(公告)号：EP3170806A4
公开(公告)日：2018-03-07
申请号：EP14897669
申请日：2014-07-29
发明人： LI JUNPING , CHEN HAIBO , ZHANG LICHANG , CUI CHUNXIAN , LI YUAN , HUA WEIQI , DING JIANSHENG , ZHANG JUNHUA , CHENG ZHAOKUN
CPC分类号： C07C67/26 , C07C69/54 , C08F220/06
摘要： Provided is a method for preparing hydroxyethyl (methyl)acrylate by a process of a combination of a three-stage tubular reactor and a tower reactor, wherein, firstly, a catalyst, a polymerization inhibitor and (methyl) acrylic acid are mixed until the solids are dissolved, then mixed with a part of ethylene oxide and thereafter enter into a first tubular reactor for a reaction, a reaction liquid flowing out from the first tubular reactor is mixed with a certain amount of ethylene oxide and enters into a second tubular reactor for a reaction, a reaction liquid flowing out from the second tubular reactor is then mixed with a certain amount of ethylene oxide and thereafter enters into a third tubular reactor, and a reaction liquid flowing out from the third tubular reactor is then passed through a stage of an adiabatic tower reactor and aged such that a product liquid is obtained from extraction. The process has an obviously improved reaction efficiency, can further improve the production yield and reduce the production of impurities such as diesters, monoesters, etc., in the reactions, achieves a continuous production, and reduces the operational risk of the devices.
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4.发明公开
公开(公告)号：EP3085689A4
公开(公告)日：2017-08-16
申请号：EP14870703
申请日：2014-04-15
IPC分类号： C07C275/62 , C07C273/18
CPC分类号： C07C273/1872 , C07C275/62
摘要： A method for continuously preparing biuret polyisocyanate, comprising: a mixed solution of a diisocyanate and a catalyst with water vapour, in an aerosol form, are continuously reacted in a first reactor; the product obtained therefrom is brought into a second reactor for a further reaction; a tail gas from the second reactor is condensed and refluxed, and the non-condensable gas is brought into a tail gas treatment system; a reaction liquid obtained in the second reactor is further reacted in a third reactor; and then separation is performed for removing monomers, so as to obtain biuret polyisocyanate.
摘要翻译： 一种连续制备缩二脲多异氰酸酯的方法，该方法包括：将二异氰酸酯和具有水蒸气的催化剂的混合溶液以气溶胶形式在第一反应器中连续反应; 将由此得到的产物引入第二反应器用于进一步的反应; 将来自第二反应器的尾气冷凝并回流，将不可冷凝的气体送入尾气处理系统; 在第二反应器中获得的反应液在第三反应器中进一步反应; 然后分离除去单体，得到缩二脲多异氰酸酯。
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公开(公告)号：EP3000803A4
公开(公告)日：2016-12-28
申请号：EP13885426
申请日：2013-11-22
发明人： LI XIN , CHEN HAO , ZHANG CONGYING , GAO SHAN , LIU ZHENGUO , WANG WEIJIA , TANG LEI , LIU ZHIPENG , LI YUAN , JIANG QINGMEI , SONG JINHONG , HUA WEIQI , DING HAO
IPC分类号： C07C209/72 , C07C211/36
CPC分类号： C07C209/72 , B01J23/96 , B01J38/08 , C07C2601/14 , Y02P20/584 , C07C211/36
摘要： Disclosed is a method for preparing diamino-dicyclohexyl methane (H 12 MDA) by hydrogenation of diamino-diphenyl methane (MDA). In the process, 4,4'-MDA used as the starting material is firstly hydrogenated to prepare 4,4'-H 12 MDA. When the activity of the catalyst is reduced, the feed is switched from 4,4'-MDA to the mixture of 2,4'-MDA and 4,4'-MDA, and then when the conversion is stabilized, the feed is switched to 4,4'-MDA again. The deactivated catalyst is activated on line by switching the feed to the mixture of 2,4'-MDA and 4,4'-MDA. 4,4'-H 12 MDA having the trans-trans isomer content of 16~24wt% is produced, and the mixture of 2,4'-H 12 MDA and 4,4'-H 12 MDA is also produced, wherein the content of 2,4'-H 12 MDA in the mixture is 4~15 wt%.
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6.发明公开COMPOSITE CATALYST, PREPARATION PROCESS THEREOF, AND PROCESS FOR CATALYZING THE TRIMERIZATION OF BUTADIENE USING THE COMPOSITE CATALYST 审中-公开复合催化剂，用于生产IT，AND METHOD FOR催化丁二烯三聚与复合催化剂
公开(公告)号：EP2890494A4
公开(公告)日：2016-06-01
申请号：EP13832707
申请日：2013-05-09
发明人： QIN LEI , HUA WEIQI , CHENG RUIHUA , LI YUAN , LIU BAIPING , HU BINGBO
CPC分类号： B01J31/0215 , B01J31/0209 , B01J31/0212 , B01J31/0232 , B01J31/122 , B01J31/128 , B01J31/143 , B01J31/146 , B01J31/2226 , B01J31/38 , B01J2231/20 , C07C2/465 , C07C2531/02 , C07C2531/14 , C07C2531/38 , C07C13/277
摘要： The present invention relates to a composite catalyst, preparation process thereof, and process for catalyzing the trimerization of butadiene using the composite catalyst. The composite catalyst comprises: (A) a titanium compound catalyst active component, (B) an organometallic compound co-catalyst component, (C) a sulfoxide compound catalyst-modifying component, (D) a monoester compound catalyst-modifying component, and (E) a solvent component. The composite catalyst has advantages of excellent selectivity, high catalytic activity, easy preparation and so on.
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7.发明公开
公开(公告)号：EP2743251A4
公开(公告)日：2015-03-25
申请号：EP11870592
申请日：2011-09-06
发明人： CHEN CHANGSHENG , LI YUAN , ZHAO WENJUAN , CUI HONGYIN , HUA WEIQI
IPC分类号： C07C211/36 , C07C209/48 , C07C209/52 , C07C253/30 , C07C255/46 , C07C255/61
CPC分类号： C07C209/62 , C07C209/48 , C07C209/52 , C07C211/36 , C07C253/30 , C07C2601/14 , C07C255/61 , C07C255/46
摘要： Provided is a 3-aminomethyl-3,5,5-trimethylcyclohexylamine preparation method. A feeding flow of 3-cyano-3,5,5-trimethylcyclohexylimine is reacted with NH 3 and hydrogen in the presence of a hydrogenation catalyst; the method is characterized by: firstly adding a basic compound to the feeding flow of 3-cyano-3,5,5-trimethylcyclohexylimine, and then after a portion of 3-cyano-3,5,5-trimethylcyclohexylimine has reacted, adding an acidic compound to reaction materials for further hydrogenation reaction to prepare the product. The method ensures that the aminonitrile content in the product is low, thus effectively reducing the duration of the reaction and greatly reducing the consumption of the catalyst during the hydrogenation reaction process.
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