利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

12 条记录 (耗时 0.018 秒)

    Method for synthesis of oximes
    1.
    发明授权
    Method for synthesis of oximes 有权
    肟的合成方法

    公开(公告)号：US06927308B2

    公开(公告)日：2005-08-09

    申请号：US10733278

    申请日：2003-12-12

    申请人： Stefan Leininger ,  Juergen Herwig ,  Martin Roos ,  Georg Oenbrink

    发明人： Stefan Leininger ,  Juergen Herwig ,  Martin Roos ,  Georg Oenbrink

    IPC分类号： B01J29/89 ,  B01J38/00 ,  C07B61/00 ,  C07C249/04 ,  C07C249/14 ,  C07C251/44 ,  C07C249/08

    CPC分类号： C07C249/04 ,  C07C2601/20 ,  C07C251/44

    摘要： An oxime is synthesized by ammoximation of a carbonyl compound. In stage (i) of the process, a carbonyl compound containing 6 to 20 C atoms is reacted with ammonia and hydrogen peroxide in the presence of a) an organic solvent that is a1) at least partly water-soluble, a2) stable under ammoximation conditions, a3) has a boiling point of higher than 100° C. and/or is capable of forming a two-phase azeotrope with water, and b) a titanium-containing heterogeneous catalyst. After the reaction, the catalyst is separated from the reaction mixture. The oxime is crystallized and separated from the reaction mixture. Water is removed from the remaining mother liquor, provided the mother liquor is a two-phase system in which one of the phases is an aqueous phase. Water or a water-containing two-phase azeotrope is distilled off from the mother liquor, while the distillation bottoms and, optionally, the predominantly organic phase of the azeotrope are recycled to stage (i).

    摘要翻译： 通过羰基化合物的肟化合成肟。 在该方法的阶段（i）中，在a）至少部分水溶性的有机溶剂存在下，使含有6-20个碳原子的羰基化合物与氨和过氧化氢反应，a2）在氨肟化下稳定 条件a3）的沸点高于100℃，和/或能够与水形成两相共沸物，和b）含钛的非均相催化剂。 反应后，将催化剂与反应混合物分离。 将肟结晶并与反应混合物分离。 如果母液是其中一相是水相的两相系统，则从剩余的母液中除去水。 从母液中蒸馏掉水或含水的两相共沸物，同时将蒸馏塔底物和任选的共沸物的主要有机相再循环至阶段（i）。

    Two-phase ammoximation
    2.
    发明授权
    Two-phase ammoximation 有权
    两相氨肟

    公开(公告)号：US06664423B2

    公开(公告)日：2003-12-16

    申请号：US10293471

    申请日：2002-11-14

    申请人： Juergen Herwig ,  Stefan Leininger ,  Georg Oenbrink ,  Thomas Schiffer

    发明人： Juergen Herwig ,  Stefan Leininger ,  Georg Oenbrink ,  Thomas Schiffer

    IPC分类号： C07C24906

    CPC分类号： C07C249/04 ,  C07C2601/20 ,  C07C251/42

    摘要： Oximes are prepared from ketones or aldehydes, hydrogen peroxide and ammonia. The reaction is carried out in a system of one aqueous phase and one phase of hydrocarbons inert under the reaction conditions in the presence of at least one interphase contactor and a catalyst system which consists of at least two components. A first component of the catalyst system is present in heterogeneous form and is based on titanium, silicon and oxygen and a second component is a homogeneously dissolved or suspended ammonium salt.

    摘要翻译： 肟由酮或醛，过氧化氢和氨制备。 反应在一个水相和一相烃系统中进行，该反应在至少一个相间接触器和由至少两种组分组成的催化剂体系的存在下，在反应条件下是惰性的。 催化剂体系的第一组分以非均匀形式存在并且基于钛，硅和氧，第二组分是均匀溶解或悬浮的铵盐。

    Use of a settling accelerator in epoxidation
    4.
    发明授权
    Use of a settling accelerator in epoxidation 有权
    在环氧化中使用沉降促进剂

    公开(公告)号：US06828449B2

    公开(公告)日：2004-12-07

    申请号：US10681282

    申请日：2003-10-09

    申请人： Juergen Herwig ,  Martin Roos ,  Georg Oenbrink ,  Bernd Guenzel ,  Joerg Lohmar

    发明人： Juergen Herwig ,  Martin Roos ,  Georg Oenbrink ,  Bernd Guenzel ,  Joerg Lohmar

    IPC分类号： C07D30103

    CPC分类号： C07D301/12

    摘要： Settling times of a catalyst in the epoxidation of a cyclic, at least monounsaturated alkene are improved by a method, comprising epoxidizing a cyclic, at least monounsaturated alkene having from 8 to 20 carbon atoms in the ring in a reaction medium containing an oxidant and a catalyst system comprising at least one metal of Groups 4, 5 and 6 of the Periodic Table of the Elements, phosphoric acid and a phase transfer catalyst and a cyclic alkane having from 8 to 20 carbon atoms in the ring, which corresponds to the alkene reactant, as settling accelerator in the epoxidation reaction.

    摘要翻译： 在环状至少单不饱和烯烃的环氧化中催化剂的沉降时间通过一种方法得到改进，所述方法包括在含有氧化剂的反应介质中环氧化环中具有8-20个碳原子的环状至少单不饱和烯烃， 催化剂体系包括元素周期表第4,5和6族中的至少一种金属，磷酸和相转移催化剂和环中具有8至20个碳原子的环烷烃，其对应于烯烃反应物 作为环氧化反应中的沉降促进剂。

    Coammoxidation of ketones
    6.
    发明授权
    Coammoxidation of ketones 有权
    酮的共氧化反应

    公开(公告)号：US07608738B2

    公开(公告)日：2009-10-27

    申请号：US10572594

    申请日：2004-08-02

    申请人： Juergen Herwig ,  Martin Roos ,  Georg Oenbrink ,  Bernd Guenzel ,  Dirk Kuppert

    发明人： Juergen Herwig ,  Martin Roos ,  Georg Oenbrink ,  Bernd Guenzel ,  Dirk Kuppert

    IPC分类号： C07C251/32 ,  C07C249/04

    CPC分类号： C07C249/04 ,  C07C2601/14 ,  C07C2601/20 ,  C07C251/44

    摘要： The present invention relates to a process for the coammoximation, that is to say for the simultaneous ammoximation, of ketones, in particular of cyclic ketones such as cyclododecanone and cyclohexanone. Ammoximation is taken to mean here the preparation of oximes from ketones or aldehydes together with hydrogen peroxide and ammonia and in the presence of a catalyst which essentially consists of silicon, titanium and oxygen, for example titanium silicalite.

    摘要翻译： 本发明涉及一种用于协同肟化的方法，也就是说用于同时氨基肟化酮，特别是环状酮如环十二烷酮和环己酮。 在这里，将肟从酮或醛与过氧化氢和氨一起制备，并且在催化剂的存在下，基本上由硅，钛和氧组成的催化剂（例如钛硅沸石）制备方法。

    Coammoxidation of Ketones
    7.
    发明申请
    Coammoxidation of Ketones 有权
    酮的辅酶氧化

    公开(公告)号：US20080249300A1

    公开(公告)日：2008-10-09

    申请号：US10572594

    申请日：2004-08-02

    申请人： Juergen Herwig ,  Martin Roos ,  Georg Oenbrink ,  Bernd Guenzel ,  Dirk Kuppert

    发明人： Juergen Herwig ,  Martin Roos ,  Georg Oenbrink ,  Bernd Guenzel ,  Dirk Kuppert

    IPC分类号： C07C249/04 ,  C07D223/10

    CPC分类号： C07C249/04 ,  C07C2601/14 ,  C07C2601/20 ,  C07C251/44

    摘要： The invention relates to a method for the coammoxidation, i.e. for the simultaneous ammoxidation of ketones, especially of cyclic ketones such as cyclododecanone and cyclohexanone. The ammoxidatian method of the invention relates to the production of oximes from ketones or aldehydes using hydrogen peroxide and amnmonia and further using a catalyst that substantially consists of silicon, titanium and oxygen, such as for example titanium silicalite.

    摘要翻译： 本发明涉及一种辅助氧化反应的方法，即用于同时氨基酮化，特别是环状酮如环十二酮和环己酮的氨基氧化。 本发明的氨氧化方法涉及使用过氧化氢和亚麻酸从酮或醛生产肟，并进一步使用基本上由硅，钛和氧组成的催化剂，例如钛硅沸石。