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14 条记录 (耗时 0.027 秒)

    Process for the preparation of alpha-oxoaldehydes
    1.
    发明授权
    Process for the preparation of alpha-oxoaldehydes 失效
    制备α-氧代醛的方法

    公开(公告)号：US06313343B1

    公开(公告)日：2001-11-06

    申请号：US09462527

    申请日：2000-01-07

    申请人： Yoshitaka Arita ,  Akihiko Ohta ,  Noboru Saito ,  Kimio Ariyoshi

    发明人： Yoshitaka Arita ,  Akihiko Ohta ,  Noboru Saito ,  Kimio Ariyoshi

    IPC分类号： C07C6966

    CPC分类号： C07C45/37 ,  C07C45/38 ,  C07C45/39 ,  C07C67/39 ,  C07C49/185 ,  C07C47/127 ,  C07C69/716

    摘要： Alkylene glycol is oxidized in a vapor phase in the presence of alcohol (a), oxygen, and a catalyst (a) (primary reaction). &agr;-oxoaldehyde, and alcohol (b) or olefin, are oxidized in a vapor phase in the presence of oxygen and a catalyst (b) (secondary reaction). A molar ratio of the alkylene glycol to the alcohol (a) is preferably in a range of 1/100 to 5/1. It is preferable that one same compound is used as the alcohol (a) and the alcohol (b). In the case where the primary and secondary reactions are successively executed, a reaction device in which a primary reactor and a secondary reactor are connected in a two-stage connection type is preferably used. This ensures that a method is provided that is capable of producing &agr;-oxoaldehyde at a higher yield than conventionally, and further, that is capable of stably obtaining an &agr;-oxoaldehyde solution or gas with a higher concentration than conventionally.

    摘要翻译： 在醇（a），氧气和催化剂（a）（初级反应）的存在下，在气相中氧化亚烷基二醇。 α-氧代醛和醇（b）或烯烃在氧气和催化剂（b）的存在下在气相中被氧化（二次反应）。 亚烷基二醇与醇（a）的摩尔比优选在1/100〜5/1的范围内。 优选使用一种相同的化合物作为醇（a）和醇（b）。 在连续进行一次反应和二次反应的情况下，优选使用其中一级反应器和二级反应器以两级连接型连接的反应装置。 这确保了提供能够以比常规方法更高的产率生产α-氧代醛的方法，并且还能够稳定地获得比常规浓度高的α-氧代醛溶液或气体。

    Method of manufacturing .alpha.-oxocarboxylate and catalyst adopted in the method
    2.
    发明授权
    Method of manufacturing .alpha.-oxocarboxylate and catalyst adopted in the method 失效
    方法中采用α-氧代羧酸酯和催化剂的制备方法

    公开(公告)号：US5750768A

    公开(公告)日：1998-05-12

    申请号：US689274

    申请日：1996-08-06

    申请人： Yoshitaka Arita ,  Akihiko Ohta ,  Ren Hasebe ,  Noboru Saito

    发明人： Yoshitaka Arita ,  Akihiko Ohta ,  Ren Hasebe ,  Noboru Saito

    IPC分类号： B01J23/50 ,  B01J27/16 ,  B01J27/18 ,  B01J27/185 ,  B01J27/188 ,  B01J27/198 ,  B01J31/18 ,  C07B61/00 ,  C07C45/38 ,  C07C45/39 ,  C07C67/39 ,  C07C67/40 ,  C07C69/67 ,  C07C69/716 ,  C07C69/66

    CPC分类号： C07C45/39 ,  B01J27/16 ,  C07C45/38 ,  C07C67/39

    摘要： A method of manufacturing .alpha.-oxocarboxylate includes the steps of: (i) carrying out a vapor phase oxidation of 1,2-diol of formula (1) in a primary reaction vessel, (ii) introducing a resulting gaseous .alpha.-oxoaldehyde and/or .alpha.-hydroxyaldehyde in a secondary reaction vessel together with alcohol or olefin which is converted into a gas form in a vaporizing chamber, and (iii) carrying out an oxidative esterification of the gaseous .alpha.-oxoaldehyde and/or .alpha.-hydroxyaldehyde molecular oxygen in a presence of inorganic oxide containing phosphorus as a catalyst in the secondary reaction vessel, ##STR1## (R is a hydrogen atom or an organic residue). The described method permits .alpha.-oxocarboxylate to be manufactured economically and effectively in practically one step using inexpensive 1,2-diol such as ethylene glycol or propylene glycol.

    摘要翻译： 制备α-氧代羧酸酯的方法包括以下步骤：（i）在初级反应容器中进行式（1）的1,2-二醇的气相氧化，（ii）将所得的气态α-氧代醛和/ 或α-羟基醛在二次反应容器中与醇或烯烃一起在汽化室中转化成气体形式，和（iii）进行气态α-氧代醛和/或α-羟基甲醛分子氧的氧化酯化反应 在二次反应容器中存在含磷作为催化剂的无机氧化物，（1）（R是氢原子或有机残基）。 所描述的方法允许α-氧代羧酸酯在几乎一步中经济地和有效地制备，使用廉价的1,2-二醇如乙二醇或丙二醇。

    Process for production of acrolein
    4.
    发明授权
    Process for production of acrolein 有权
    丙烯醛生产工艺

    公开(公告)号：US07683220B2

    公开(公告)日：2010-03-23

    申请号：US12225823

    申请日：2007-03-27

    申请人： Etsushige Matsunami ,  Tsukasa Takahashi ,  Hiroto Kasuga ,  Yoshitaka Arita

    发明人： Etsushige Matsunami ,  Tsukasa Takahashi ,  Hiroto Kasuga ,  Yoshitaka Arita

    IPC分类号： C07C45/32

    CPC分类号： B01J27/182 ,  B01J21/08 ,  B01J27/16 ,  B01J27/1806 ,  B01J27/187 ,  B01J35/002 ,  B01J37/0201 ,  B01J37/03 ,  C07C45/52 ,  C07C47/22

    摘要： There is provided a process for producing acrolein from glycerin, exhibiting a suppressed decrease in the yield of acrolein with time. In the process for producing acrolein by dehydrating glycerin in the presence of a catalyst containing a metal phosphate, one, or two or more, metal phosphates are used, which are selected from aluminum salts, zirconium salts, manganese salts, alkali metal salts (provided that the alkali metal is sodium, potassium, or cesium, and the ratio between the mole number (M) of the alkali metal and the mole number (P) of phosphoric acid (i.e., M/P ratio) in the metal phosphate is 2.0 or lower), alkali earth metal salts (provided that the ratio between the mole number (M) of the alkali earth metal and the mole number (P) of phosphoric acid (i.e., M/P ratio) in the metal phosphate is 1.0 or lower), and the like.

    摘要翻译： 提供了一种从甘油制备丙烯醛的方法，随着时间的推移，丙烯醛的收率下降。 在含有金属磷酸盐，一种或两种以上的催化剂存在下，通过脱水甘油来制备丙烯醛的方法中，使用选自铝盐，锆盐，锰盐，碱金属盐的金属磷酸盐（提供 碱金属是钠，钾或铯，碱金属的摩尔数（M）与磷酸的摩尔数（P）之比（M / P比）在金属磷酸盐中的比例为2.0 或更低）碱土金属盐（条件是金属磷酸盐中碱土金属的摩尔数（M）与磷酸的摩尔数（P）之比（即M / P比）之比为1.0或 较低）等。

    Process for producing acrolein
    9.
    发明授权
    Process for producing acrolein 失效
    制备丙烯醛的方法

    公开(公告)号：US07847131B2

    公开(公告)日：2010-12-07

    申请号：US12451498

    申请日：2008-05-15

    申请人： Yoshitaka Arita ,  Tsukasa Takahashi ,  Masaki Okada ,  Toshimitsu Moriguchi

    发明人： Yoshitaka Arita ,  Tsukasa Takahashi ,  Masaki Okada ,  Toshimitsu Moriguchi

    IPC分类号： C07C45/52

    CPC分类号： B01J37/036 ,  B01J27/1804 ,  B01J27/285 ,  B01J37/03 ,  C07C45/52 ,  Y02P20/584 ,  C07C47/22

    摘要： There is provided a process for producing acrolein, which makes it possible to obtain acrolein in high yield by dehydration of glycerin. Glycerin is allowed to coexist with a catalyst containing a rare earth metal salt crystal of phosphoric acid, thereby dehydrating the glycerin, wherein the crystal is obtained by calcining a solid which is formed by allowing a liquid containing water and a hydroxide of the rare earth metal and/or a dehydration condensate of the hydroxide to contain phosphate ions.

    摘要翻译： 提供了制备丙烯醛的方法，其可以通过甘油脱水以高产率获得丙烯醛。 甘油与含有磷酸稀土金属盐晶体的催化剂共存，从而使甘油脱水，其中通过煅烧通过使含有水的液体和稀土金属的氢氧化物形成的固体而获得的结晶 和/或氢氧化物的脱水缩合物以含有磷酸根离子。

    PROCESS FOR PRODUCING ACROLEIN AND GLYCERIN-CONTAINING COMPOSITION
    10.
    发明申请
    PROCESS FOR PRODUCING ACROLEIN AND GLYCERIN-CONTAINING COMPOSITION 有权
    生产丙三醇和含有甘氨酸的组合物的方法

    公开(公告)号：US20100105957A1

    公开(公告)日：2010-04-29

    申请号：US12312883

    申请日：2007-11-28

    申请人： Yoshitaka Arita ,  Hideaki Tsuneki ,  Hiroto Kasuka ,  Masaki Okada ,  Masaru Kirshiki

    发明人： Yoshitaka Arita ,  Hideaki Tsuneki ,  Hiroto Kasuka ,  Masaki Okada ,  Masaru Kirshiki

    IPC分类号： C07C45/42 ,  C07C45/52

    CPC分类号： C07C31/225 ,  C07C45/52 ,  C07C47/22

    摘要： The present invention provides a process for producing acrolein, which exhibits a prolonged catalyst life, low energy consumption, and excellent efficiency, and which is earth-conscious, and a glycerin-containing composition which can preferably be used even in this process. The process for producing acrolein is one which includes bringing a raw material gas containing glycerin gas into contact with a solid acid catalyst in a reactor, and the partial pressure of the glycerin gas in the raw material gas is set to be from 0.01 to 30 kPa. The glycerin-containing composition is for use in a process for producing acrolein using a solid catalyst and includes a fatty acid and/or a fatty acid ester, and a total mass of the fatty acid and the fatty acid ester is from 0.001% to 5% by mass, relative to the glycerin.

    摘要翻译： 本发明提供一种生产丙烯醛的方法，其具有延长的催化剂寿命，低能量消耗和优异的效率，并且是有意识的，以及即使在该方法中也可优选使用的含甘油的组合物。 制造丙烯醛的方法是将含有甘油气体的原料气体与反应器中的固体酸催化剂接触的方法，将原料气体中的甘油气体的分压设定为0.01〜30kPa 。 含有甘油的组合物用于使用固体催化剂制备丙烯醛的方法，包括脂肪酸和/或脂肪酸酯，脂肪酸和脂肪酸酯的总质量为0.001〜5 相对于甘油为质量％。