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公开(公告)号：US5811591A
公开(公告)日：1998-09-22
申请号：US561179
申请日：1995-11-20
CPC分类号： B01J31/10 , B01J31/08 , C07C45/64 , B01J2231/32
摘要： An unsaturated aldehyde expressed by Formula (I) below is hydrated with a solution in the presence of a carboxylic-acid-based resin having of a structure expressed by Formula (II) below: ##STR1## where R represents one of a hydrogen atom and a hydrocarbon group having up to five carbons; ##STR2## where R.sub.1 and R.sub.2 respectively represent a hydrogen atom, hydrocarbon group having up to five carbons, or --(--CH.sub.2 --).sub.p1 --X group, p.sub.1, k.sub.1, and m.sub.1 respectively represent an integer from zero to six, n.sub.1 represents an integer from one to six, Y.sub.1 represents --O--, --S--, or --NR.sub.3 --, R.sub.3 represents a hydrogen atom or hydrocarbon group having up to five carbons, and X represents a carboxylic-acid-based resin main body. Using a heat-resistant catalyst as above makest it possible to increase the reaction rate by heating, and produce hydroxyalkanal at high selectivity and yield out of an industrially advantageous high-concentration unsaturated aldehyde solution.
摘要翻译： 在下述通式（I）表示的结构的羧酸类树脂存在下，用下述通式（I）表示的不饱和醛进行水合：其中，R表示下式 氢原子和具有多至五个碳的烃基; （II）其中R1和R2分别表示氢原子，具有至多5个碳的烃基或 - （ - CH2-）p1-X基，p1，k1和m1分别表示0至6的整数 ，n1表示1〜6的整数，Y1表示-O - ， - S-或-NR3-，R3表示氢原子或至多5个碳的烃基，X表示羧酸系树脂主体 身体。 如上所述使用耐热催化剂，可以通过加热提高反应速度，并以高选择性产生羟基卡那定，并从工业上有利的高浓度不饱和醛溶液中产生。
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公开(公告)号：US5698748A
公开(公告)日：1997-12-16
申请号：US560716
申请日：1995-11-20
IPC分类号： B01J31/08 , C07B61/00 , C07C45/64 , C07C47/19 , C07C29/141
CPC分类号： C07C45/64
摘要： A process of producing hydroxyalkanal comprises a step of hydrating a raw material, namely, an unsaturated aldehyde, in an aqueous solution in the presence of a lead-carrying heterogeneous acid catalyst promoting the hydration reaction. According to the above method, the lead-carrying heterogeneous acid catalyst curbs the consecutive reaction of the reaction product, namely, hydroxyalkanal. Thus, hydroxyalkanal can be produced with high selectivity at high yield out of a high-concentration unsaturated aldehyde solution. Moreover, the catalyst can be used repetitively for a considerable period of continuous use in a stable manner, thereby further improving the yield of hydroxyalkanal.
摘要翻译： 生产羟基卡那氏菌的方法包括在促进水合反应的含铅多相酸催化剂存在下，在水溶液中水合原料即不饱和醛的步骤。 根据上述方法，铅载体异质酸催化剂阻止了反应产物，即羟基链烷醛的连续反应。 因此，高浓度不饱和醛溶液可以高收率地以高选择性制备羟基卡那定。 此外，催化剂可以以稳定的方式重复使用相当长的连续使用时间，从而进一步提高羟基卡那定的产率。
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公开(公告)号：US5639920A
公开(公告)日：1997-06-17
申请号：US560715
申请日：1995-11-20
CPC分类号： C07C45/64
摘要： In a process of producing hydroxyalkanal, a raw material, namely, an unsaturated aldehyde, is hydrated with a solution in the presence of a catalyst, and alcohol is added to the solution. A adding amount of the alcohol with respect to the unsaturated aldehyde is preferably in a range between 0.001 percent by weight and 10 percent by weight. According to this process, a consecutive reaction (side reaction) of a reaction product, namely, hydroxyalkanal, is curbed by the alcohol added to the solution, thereby making it possible to produce hydroxyalkanal at high selectivity out of a high-density unsaturated aldehyde solution. Therefore, the above process can trigger a reaction of an industrially advantageous unsaturated aldehyde solution, and thus improves the yield of hydroxyalkanal.
摘要翻译： 在制备羟基卡那酸的过程中，原料即不饱和醛在催化剂存在下与溶液水合，向该溶液中加入醇。 醇相对于不饱和醛的添加量优选为0.001重量％以上10重量％以下。 根据该方法，通过加入到溶液中的醇来抑制反应产物（即羟基链烷醛）的连续反应（副反应），从而可以从高密度不饱和醛溶液中以高选择性制备羟基卡那定 。 因此，上述方法可以引发工业上有利的不饱和醛溶液的反应，从而提高羟基卡那定的产率。
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公开(公告)号：US06559342B1
公开(公告)日：2003-05-06
申请号：US09717593
申请日：2000-11-21
申请人： Hideaki Tsuneki , Masaru Kirishiki , Yoshitaka Arita , Yukihide Hashimoto , Tomoharu Oku , Hisakazu Shindou , Yoshiaki Urano , Fumiaki Morishita
发明人： Hideaki Tsuneki , Masaru Kirishiki , Yoshitaka Arita , Yukihide Hashimoto , Tomoharu Oku , Hisakazu Shindou , Yoshiaki Urano , Fumiaki Morishita
IPC分类号： C07C21304
CPC分类号： C07C213/04 , Y02P20/584 , C07C215/08 , C07C215/12
摘要： In producing alkanolamines by use of a microporous material as a catalyst, the difficulty in industrially performing the production because of the short lifetime of the catalyst is resolved. A process of regenerating the catalyst by removing an organic substance deposited on the catalyst by means of decomposing and/or extracting the substance is introduced, and thereby steady production is carried out substantially over the long term by switching the reaction and the regenerating processes.
摘要翻译： 通过使用微孔材料作为催化剂制造链烷醇胺时，解决了由于催化剂寿命短而在工业上进行生产的困难。 引入通过除去通过分解和/或提取物质沉积在催化剂上的有机物质来再生催化剂的方法，从而通过转换反应和再生方法基本上长期地进行稳定的生产。
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