LIQUID PHASE SELECTIVE OXIDATION TO EPOXIDES WITH MOLECULAR OXYGEN

    公开(公告)号:US20180208569A1

    公开(公告)日:2018-07-26

    申请号:US15878837

    申请日:2018-01-24

    摘要: The present disclosure relates to a method for effecting catalytic selective oxidation in liquid phase comprising a perfluorinated solvent and an olefinic compound with molecular oxygen to produce an epoxide. The method may provide enhanced selectivity to the epoxide of greater than 60%. The olefinic compound may be ethylene, propylene, butenes, 1-octene, butadiene, allyl chloride, allyl alcohol, styrene, and the like. The perfluorinated solvent may be perfluoro methyldecalin, perfluorodecalin, perfluoroperhydrophenanthrene, perfluoro (butyltetrahydrofuran), isomers thereof, or a combination thereof. In some embodiments, the method includes catalytically epoxidizing, in a liquid phase comprising a perfluorinated solvent, propylene with molecular oxygen to produce propylene oxide. A system for carrying out the method is also provided, the system comprising a source of a perfluorinated solvent, and a liquid phase reactor fluidly connected with the source, and configured for effecting catalytic selective oxidation, in a liquid phase comprising the perfluorinated solvent, of an olefinic compound with molecular oxygen to produce an epoxide.

    Continuous method for making chlorhydrines
    2.
    发明授权
    Continuous method for making chlorhydrines 失效
    连续制造氯素的方法

    公开(公告)号:US08389777B2

    公开(公告)日:2013-03-05

    申请号:US11915053

    申请日:2006-05-19

    申请人: Patrick Gilbeau

    发明人: Patrick Gilbeau

    IPC分类号: C07C31/34 C07D301/24

    摘要: Continuous process for producing a chlorohydrin, wherein a polyhydroxylated aliphatic hydrocarbon, an ester of a polyhydroxylated aliphatic hydrocarbon or a mixture thereof is reacted with a chlorinating agent and an organic acid in a liquid reaction medium whose steady-state composition comprises the polyhydroxylated aliphatic hydrocarbon and esters of the polyhydroxylated aliphatic hydrocarbon whose sum content, expressed as moles of polyhydroxylated aliphatic hydrocarbon, is greater than 1.1 mol % and less than or equal to 30 mol %, the percentage being based on the organic part of the liquid reaction medium.

    摘要翻译: 用于制备氯代醇的连续方法,其中多羟基化脂族烃,多羟基化脂族烃或其混合物的酯与其稳态组合物包含多羟基化脂族烃的液体反应介质中的氯化剂和有机酸反应, 多羟基化脂族烃的酯的总含量以多羟基化脂肪族烃的摩尔数表示,大于1.1摩尔%且小于或等于30摩尔%,其百分比基于液体反应介质的有机部分。

    Propylene oxide process
    4.
    发明授权
    Propylene oxide process 失效
    环氧丙烷工艺

    公开(公告)号:US08207360B2

    公开(公告)日:2012-06-26

    申请号:US12657896

    申请日:2010-01-29

    IPC分类号: C07D301/12 C07D301/06

    摘要: A process for producing propylene oxide from propylene is disclosed. The process comprises reacting propylene and an oxidant selected from the group consisting of hydrogen peroxide and oxygen in a slurry comprising a catalyst and a solvent having a boiling point of 110° C. or lower to produce a reaction mixture. The reaction mixture including the catalyst is distilled to produce a vapor stream comprising propylene, propylene oxide, and at least a portion of the solvent, and a slurry stream comprising the solvent and the catalyst. At least a portion of the slurry stream is recycled to the reaction step.

    摘要翻译: 公开了一种由丙烯生产环氧丙烷的方法。 该方法包括在包含催化剂和沸点为110℃或更低的溶剂的浆料中使丙烯和选自过氧化氢和氧气的氧化剂反应以产生反应混合物。 包括催化剂的反应混合物被蒸馏以产生包含丙烯,环氧丙烷和至少一部分溶剂的蒸气流,以及包含溶剂和催化剂的浆料流。 将至少一部分浆料流再循环至反应步骤。

    Direct epoxidation catalyst and process
    5.
    发明申请
    Direct epoxidation catalyst and process 失效
    直接环氧化催化剂和工艺

    公开(公告)号:US20110152550A1

    公开(公告)日:2011-06-23

    申请号:US12653678

    申请日:2009-12-17

    IPC分类号: C07D301/06 B01J29/068

    摘要: A catalyst, useful for the direct epoxidation of olefins, is disclosed. The catalyst comprises palladium nanoparticles, support nanoparticles, and a titanium zeolite having a particle size of 2 microns or greater. The palladium nanoparticles are deposited on the support nanoparticles to form supported palladium nanoparticles, and the supported palladium nanoparticles are deposited on the titanium zeolite; or the supported palladium nanoparticles are deposited on a carrier having a particle size of 2 microns or greater. The invention also includes a process for producing an epoxide comprising reacting an olefin, hydrogen and oxygen in the presence of the catalyst. The catalysts are more active in epoxidation reactions, while demonstrating the same or better selectivity.

    摘要翻译: 公开了一种可用于烯烃直接环氧化的催化剂。 催化剂包括钯纳米颗粒,载体纳米颗粒和粒径为2微米或更大的钛沸石。 将钯纳米颗粒沉积在载体纳米颗粒上以形成负载的钯纳米颗粒,并将负载的钯纳米颗粒沉积在钛沸石上; 或者将负载的钯纳米颗粒沉积在粒径为2微米或更大的载体上。 本发明还包括一种生产环氧化物的方法,包括在催化剂存在下使烯烃,氢和氧反应。 催化剂在环氧化反应中更具活性,同时表现出相同或更好的选择性。

    METHODS OF PRODUCING EPOXIDES FROM ALKENES USING A TWO-COMPONENT CATALYST SYSTEM
    6.
    发明申请
    METHODS OF PRODUCING EPOXIDES FROM ALKENES USING A TWO-COMPONENT CATALYST SYSTEM 有权
    使用双组分催化剂体系从碱性生产环氧化物的方法

    公开(公告)号:US20110112315A1

    公开(公告)日:2011-05-12

    申请号:US12943138

    申请日:2010-11-10

    IPC分类号: C07D301/06

    CPC分类号: C07D301/06

    摘要: Methods for the epoxidation of alkenes are provided. The methods include the steps of exposing the alkene to a two-component catalyst system in an aqueous solution in the presence of carbon monoxide and molecular oxygen under conditions in which the alkene is epoxidized. The two-component catalyst system comprises a first catalyst that generates peroxides or peroxy intermediates during oxidation of CO with molecular oxygen and a second catalyst that catalyzes the epoxidation of the alkene using the peroxides or peroxy intermediates. A catalyst system composed of particles of suspended gold and titanium silicalite is one example of a suitable two-component catalyst system.

    摘要翻译: 提供烯烃环氧化方法。 所述方法包括在烯烃被环氧化的条件下,在一氧化碳和分子氧的存在下,在水溶液中将烯烃暴露于双组分催化剂体系的步骤。 双组分催化剂体系包括在分子氧氧化CO期间产生过氧化物或过氧化物中间体的第一催化剂和使用过氧化物或过氧化物中间体催化烯烃的环氧化的第二催化剂。 由悬浮金和钛硅沸石的颗粒组成的催化剂体系是合适的双组分催化剂体系的一个实例。

    Process for producing hexafluoropropylene oxide
    8.
    发明授权
    Process for producing hexafluoropropylene oxide 失效
    生产六氟环氧丙烷的方法

    公开(公告)号:US07557227B2

    公开(公告)日:2009-07-07

    申请号:US10776230

    申请日:2004-02-12

    IPC分类号: C07D303/08

    CPC分类号: C07D301/06

    摘要: A process for producing hexafluoropropylene oxide, which comprises contacting a reaction product containing hexafluoropropylene oxide obtained by reacting hexafluoropropylene with oxygen, with at least one adsorbent selected from activated carbon and the following metal oxides, wherein the metal oxides are oxides of at least one metal selected from Groups 1 and 2 of the Periodic Table, Zr and Si.

    摘要翻译: 一种生产六氟环氧丙烷的方法,其包括使含六氟丙烯与氧反应获得的六氟环氧丙烷的反应产物与至少一种选自活性炭和下列金属氧化物的吸附剂接触,其中所述金属氧化物是选自至少一种金属的氧化物 从元素周期表第1和2组,Zr和Si。

    METHOD FOR MAKING A CHLOROHYDRIN
    9.
    发明申请
    METHOD FOR MAKING A CHLOROHYDRIN 有权
    制造氯罗坦的方法

    公开(公告)号:US20090131631A1

    公开(公告)日:2009-05-21

    申请号:US11914836

    申请日:2006-05-19

    摘要: Process for preparing a chlorohydrin, comprising the following steps: (a) a polyhydroxylated aliphatic hydrocarbon, an ester of a polyhydroxylated aliphatic hydrocarbon or a mixture thereof is reacted with a chlorinating agent and an organic acid so as to give a mixture containing the chlorohydrin and esters of the chlorohydrin (b) at least part of the mixture obtained in step (a) is subjected to one or more treatments in steps subsequent to step (a) (c) polyhydroxylated aliphatic hydrocarbon is added to at least one of the steps subsequent to step (a), so as to react, at a temperature greater than or equal to 20° C., with the esters of the chlorohydrin, so as to form, at least partly, esters of the polyhydroxylated aliphatic hydrocarbon.

    摘要翻译: 制备氯代醇的方法,包括以下步骤:(a)多羟基化脂族烃,多羟基化脂族烃或其混合物的酯与氯化剂和有机酸反应,得到含有氯代醇和 在步骤(a)(c)之后的步骤中,将步骤(a)中获得的混合物的至少一部分的氯代醇(b)的至少一部分进行一次或多次处理,然后将多羟基化脂族烃加入至少一个步骤 到步骤(a),以便在大于或等于20℃的温度下与氯醇的酯反应,以至少部分地形成多羟基化脂族烃的酯。

    Direct epoxidation process using a mixed catalyst system
    10.
    发明授权
    Direct epoxidation process using a mixed catalyst system 有权
    直接环氧化工艺采用混合催化剂体系

    公开(公告)号:US07470801B1

    公开(公告)日:2008-12-30

    申请号:US11977359

    申请日:2007-10-24

    申请人: Roger A. Grey

    发明人: Roger A. Grey

    IPC分类号: C07D301/06

    CPC分类号: C07D301/06 C07D301/08

    摘要: Catalyst mixtures useful for the direct epoxidation of olefins are disclosed. The catalyst mixture comprises a titanium or vanadium zeolite and a supported catalyst comprising a noble metal, bismuth, and a carrier. The invention includes a process for producing an epoxide comprising reacting an olefin, hydrogen and oxygen in the presence of the catalyst mixture. The process results in significantly reduced alkane byproduct formed by the hydrogenation of olefin.

    摘要翻译: 公开了用于烯烃的直接环氧化的催化剂混合物。 催化剂混合物包含钛或钒沸石和包含贵金属,铋和载体的载体催化剂。 本发明包括一种生产环氧化物的方法,包括在催化剂混合物存在下使烯烃,氢和氧反应。 该方法可显着减少由烯烃氢化形成的烷烃副产物。