Process for the epoxidation of cyclic alkenes
    1.
    发明授权
    Process for the epoxidation of cyclic alkenes 有权
    环烯烃的环氧化方法

    公开(公告)号:US06861540B2

    公开(公告)日:2005-03-01

    申请号:US10683047

    申请日:2003-10-14

    CPC分类号: C07D301/12 C07D303/04

    摘要: The epoxidation of cyclic, at least monounsaturated alkenes is conducted by a process, which comprises conducting the epoxidation of a cyclic, at least monounsaturated alkene in the presence of an oxidant in a reaction medium that contains at least 1% by weight of the saturated cyclic alkane corresponding to the cyclic, at least monounsaturated alkene. In a preferred embodiment the reaction medium contains at least 2.5% by weight of the saturated cyclic alkane corresponding to the cyclic, at least monounsaturated alkene.

    摘要翻译: 环状至少单不饱和烯烃的环氧化是通过一种方法进行的,该方法包括在氧化剂存在下在反应介质中进行环状至少单不饱和烯烃的环氧化,所述反应介质含有至少1重量%的饱和环状 对应于环状至少单不饱和烯烃的烷烃。 在优选的实施方案中,反应介质含有至少2.5重量%的对应于环状至少单不饱和烯烃的饱和环烷烃。

    Coammoxidation of ketones
    2.
    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

    IPC分类号: C07C251/32 C07C249/04

    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。

    Use of a settling accelerator in epoxidation
    3.
    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

    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
    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

    IPC分类号: C07C249/04 C07D223/10

    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。

    Method for synthesis of oximes
    8.
    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

    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)。

    METHOD FOR THE PURIFICATION OF POLY(ARYLENE ETHERS)
    9.
    发明申请
    METHOD FOR THE PURIFICATION OF POLY(ARYLENE ETHERS) 有权
    聚丙烯(ARYLENE ETHERS)的纯化方法

    公开(公告)号:US20160075825A1

    公开(公告)日:2016-03-17

    申请号:US14786986

    申请日:2014-04-22

    IPC分类号: C08G65/46 C08G65/40

    摘要: The invention relates to a method for the purification of poly(arylene ethers) of formula (I) in which m=0 to 1.0, n=1.0-m, and Ar1, Ar2, Ar3 and Ar4 independently represent divalent arylene groups. The compound of formula (I) is produced in a first step 1, with a raw product being obtained by bringing a metal or ammonium salt of divalent dihydroxy derivatives of Ar1 or Ar3 into contact with one or more dihalogenated derivatives of Ar2 and/or Ar4, in the presence of a solvent LM1. A precipitate that is present, if appropriate, is separated (step B) so as to obtain a solution L which then undergoes a membrane filtration (step C).

    摘要翻译: 本发明涉及一种纯化式(I)的聚(亚芳基醚)的方法,其中m = 0至1.0,n = 1.0-m,Ar1,Ar2,Ar3和Ar4独立地表示二价亚芳基。 在第一步骤1中制备式(I)化合物,其中通过使Ar1或Ar3的二价二羟基衍生物的金属或铵盐与一种或多种Ar 2和/或Ar 4的二卤代衍生物接触而得到 ,在溶剂LM1存在下。 如果合适,存在沉淀物(步骤B),得到溶液L,然后进行膜过滤(步骤C)。