Method of producing alkanolamines and apparatus for producing same
    1.
    发明公开
    Method of producing alkanolamines and apparatus for producing same 有权
    Verfahren zur Herstellung von Alkanolaminen und Vorrichtung zu ihrer Herstellung

    公开(公告)号:EP1104752A2

    公开(公告)日:2001-06-06

    申请号:EP00310322.3

    申请日:2000-11-21

    IPC分类号: C07C213/04

    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。 引入通过分解和/或提取物质除去沉积在催化剂上的有机物质来再生催化剂的方法,从而通过切换反应和再生方法基本上长期地进行稳定的生产。

    Process for producing alkylene sulfide
    5.
    发明公开
    Process for producing alkylene sulfide 失效
    生产亚烷基硫醚的方法

    公开(公告)号:EP0713874A2

    公开(公告)日:1996-05-29

    申请号:EP95118314.4

    申请日:1995-11-21

    IPC分类号: C07D331/02

    CPC分类号: C07D331/02

    摘要: A process for producing an alkylene sulfide, which comprises the step of subjecting a mercaptoalkanol to an intramolecular dehydration reaction in the presence of an acidic dehydration catalyst, to produce the alkylene sulfide, in which the intramolecular dehydration reaction is conducted under at least one conditions of (1) to (3). (1) The intramolecular dehydration reaction is conducted in at least one solvent selected from the group consisting of compounds having an amide group N-substituted with a hydrocarbon group having from 1 to 6 carbon atoms, compounds having an unsubstituted amide group, compounds having a ureylene group N-substituted with a hydrocarbon group having from 1 to 6 carbon atoms, and compounds having an unsubstituted ureylene group. (2) The intramolecular dehydration reaction is conducted in a solvent under such temperature and pressure conditions that the reaction temperature T (°C) and the boiling point tb (°C) of the solvent at the reaction pressure satisfy equation (tb - 30) ≦ T ≦ tb . (3) The intramolecular dehydration reaction is conducted in a solvent in the presence of a hydrocarbon having a boiling point at ordinary pressure of from 30°C to 180°C. When the hydrocarbon has from 6 to 9 carbon atoms, the above-described effects are enhanced further. When the concentration of the hydrocarbon in the reaction mixture is maintained in the range of from 0.1 to 10% by weight, the above-described effects are enhanced even more.

    摘要翻译: 1。一种亚烷基硫醚的制造方法,其特征在于,在酸性脱水催化剂的存在下,使巯基链烷醇进行分子内脱水反应,制造亚硫酸盐,其中,分子内脱水反应在 (1)至(3)。 (1)分子内脱水反应在至少一种选自下组的溶剂中进行:具有被具有1-6个碳原子的烃基N-取代的酰胺基团的化合物,具有未取代的酰胺基团的化合物,具有 被具有1至6个碳原子的烃基N-取代的亚脲基和具有未取代的亚脲基的化合物。 (2)分子内脱水反应在反应压力下反应温度T(℃)和溶剂的沸点tb(℃)满足式(tb-30)的温度和压力条件下在溶剂中进行, ≦T≦tb。 (3)分子内脱水反应在常压下的沸点为30℃〜180℃的烃的存在下,在溶剂中进行。 当烃具有6-9个碳原子时,上述效果进一步增强。 当反应混合物中烃的浓度保持在0.1至10重量%的范围内时,上述效果进一步增强。

    Process for producing alkylene sulfide
    7.
    发明公开
    Process for producing alkylene sulfide 失效
    一种用于制备烯化硫过程

    公开(公告)号:EP0713874A3

    公开(公告)日:1996-11-13

    申请号:EP95118314.4

    申请日:1995-11-21

    IPC分类号: C07D331/02

    CPC分类号: C07D331/02

    摘要: A process for producing an alkylene sulfide, which comprises the step of subjecting a mercaptoalkanol to an intramolecular dehydration reaction in the presence of an acidic dehydration catalyst, to produce the alkylene sulfide, in which the intramolecular dehydration reaction is conducted under at least one conditions of (1) to (3). (1) The intramolecular dehydration reaction is conducted in at least one solvent selected from the group consisting of compounds having an amide group N-substituted with a hydrocarbon group having from 1 to 6 carbon atoms, compounds having an unsubstituted amide group, compounds having a ureylene group N-substituted with a hydrocarbon group having from 1 to 6 carbon atoms, and compounds having an unsubstituted ureylene group. (2) The intramolecular dehydration reaction is conducted in a solvent under such temperature and pressure conditions that the reaction temperature T (°C) and the boiling point tb (°C) of the solvent at the reaction pressure satisfy equation (tb - 30) ≦ T ≦ tb . (3) The intramolecular dehydration reaction is conducted in a solvent in the presence of a hydrocarbon having a boiling point at ordinary pressure of from 30°C to 180°C. When the hydrocarbon has from 6 to 9 carbon atoms, the above-described effects are enhanced further. When the concentration of the hydrocarbon in the reaction mixture is maintained in the range of from 0.1 to 10% by weight, the above-described effects are enhanced even more.