Integrated process for the preparation of epoxides
    11.
    发明授权
    Integrated process for the preparation of epoxides 有权
    用于制备环氧化物的综合工艺

    公开(公告)号:US06541648B1

    公开(公告)日:2003-04-01

    申请号:US10088899

    申请日:2002-06-26

    CPC classification number: C07D301/12 C01B15/029 Y02P20/125

    Abstract: The present invention relates to an integrated process for the preparation in continuous of epoxides which comprises: (a) preparing an alcoholic or hydro-alcoholic solution of hydrogen peroxide in a concentration of over 3% by weight, using a gaseous stream containing hydrogen, oxygen and an inert gas, in the presence of a bimetallic catalyst based on palladium and platinum as active components; (b) putting the alcoholic or hydro-alcoholic solution of hydrogen peroxide obtained in step (a) in contact with an olefin and a buffering agent, in the presence of an epoxidation catalyst suspended in the reaction solvent, in order to obtain a reaction mixture containing the epoxide corresponding to the olefin, water and the alcoholic solvent; (c) treating the alcoholic stream leaving step (b), after separation of the epoxide, in order to eliminate the nitrogenated compounds present; (d) feeding the alcoholic solvent obtained in (c) to step (a). A part of the solvent obtained in (c) can be used, when necessary, for diluting the hydro-alcoholic solution of hydrogen peroxide obtained in step (a) to the value required by the epoxidation plant. The process operates under high safety conditions and with a high overall efficiency, in terms of productivity and selectivity.

    Abstract translation: 本发明涉及连续制备环氧化物的一体化方法,其包括:(a)使用含氢,氧气的气流制备浓度超过3重量%的过氧化氢的醇或醇 - 醇溶液 和在基于钯和铂作为活性组分的双金属催化剂存在下的惰性气体; (b)在悬浮在反应溶剂中的环氧化催化剂的存在下,将步骤(a)中得到的过氧化氢的醇或醇 - 醇溶液与烯烃和缓冲剂接触,以获得反应混合物 含有对应于烯烃,水和醇溶剂的环氧化物; (c)在分离环氧化物之后处理离开步骤(b)的醇流,以消除存在的含氮化合物; (d)将(c)中获得的醇溶剂进料到步骤(a)。 必要时可以使用(c)中得到的溶剂的一部分,将步骤(a)中得到的过氧化氢水溶液稀释至环氧化装置所要求的值。 该工艺在高安全性条件下运行,并且在生产率和选择性方面具有较高的总体效率。

    System and process for producing an oxirane
    12.
    发明授权
    System and process for producing an oxirane 有权
    用于生产环氧乙烷的系统和方法

    公开(公告)号:US09498762B2

    公开(公告)日:2016-11-22

    申请号:US13983361

    申请日:2012-02-03

    Abstract: Embodiments of the present disclosure are directed to a system and a process for producing an oxirane. For the various embodiments, the system and process of the present disclosure includes: a reaction vessel having a reaction mixture of an olefin, a peroxide compound, a solvent mixture with an alcohol and a non-reactive co-solvent, a solid phase, and reaction products of the reaction mixture, where the reaction products include an oxirane; a separation vessel coupled to the reaction vessel, where an effluent of the reaction mixture and reaction products from the reaction vessel separates in the separation vessel into a liquid aqueous phase and a liquid organic phase; and an extraction vessel coupled to an outlet of the separation vessel, where the liquid aqueous phase taken from the outlet of the separation vessel mixes with an extraction solvent to extract oxirane from the aqueous phase.

    Abstract translation: 本公开的实施方案涉及用于生产环氧乙烷的系统和方法。 对于各种实施方案,本公开的系统和方法包括:反应容器,其具有烯烃,过氧化物化合物,溶剂混合物与醇和非反应性助溶剂的反应混合物,固相和 反应混合物的反应产物,其中反应产物包括环氧乙烷; 耦合到反应容器的分离容器,其中反应混合物的流出物和来自反应容器的反应产物在分离容器中分离成液体水相和液体有机相; 以及耦合到分离容器的出口的提取容器,其中从分离容器的出口取出的液体水相与提取溶剂混合以从水相中提取环氧乙烷。

    SYSTEM AND PROCESS FOR PRODUCING AN OXIRANE
    13.
    发明申请
    SYSTEM AND PROCESS FOR PRODUCING AN OXIRANE 有权
    用于生产氧化物的系统和方法

    公开(公告)号:US20130302216A1

    公开(公告)日:2013-11-14

    申请号:US13983361

    申请日:2012-02-03

    Abstract: Embodiments of the present disclosure are directed to a system and a process for producing an oxirane. For the various embodiments, the system and process of the present disclosure includes: a reaction vessel having a reaction mixture of an olefin, a peroxide compound, a solvent mixture with an alcohol and a non-reactive co-solvent, a solid phase, and reaction products of the reaction mixture, where the reaction products include an oxirane; a separation vessel coupled to the reaction vessel, where an effluent of the reaction mixture and reaction products from the reaction vessel separates in the separation vessel into a liquid aqueous phase and a liquid organic phase; and an extraction vessel coupled to an outlet of the separation vessel, where the liquid aqueous phase taken from the outlet of the separation vessel mixes with an extraction solvent to extract oxirane from the aqueous phase.

    Abstract translation: 本公开的实施方案涉及用于生产环氧乙烷的系统和方法。 对于各种实施方案,本公开的系统和方法包括:反应容器,其具有烯烃,过氧化物化合物,溶剂混合物与醇和非反应性助溶剂的反应混合物,固相和 反应混合物的反应产物,其中反应产物包括环氧乙烷; 耦合到反应容器的分离容器,其中反应混合物的流出物和来自反应容器的反应产物在分离容器中分离成液体水相和液体有机相; 以及耦合到分离容器的出口的提取容器,其中从分离容器的出口取出的液体水相与提取溶剂混合以从水相中提取环氧乙烷。

    PROCESS AND APPARATUS FOR VAPOR PHASE PURIFICATION DURING HYDROCHLORINATION OF MULTI-HYDROXYLATED ALIPHATIC HYDROCARBON COMPOUNDS
    14.
    发明申请
    PROCESS AND APPARATUS FOR VAPOR PHASE PURIFICATION DURING HYDROCHLORINATION OF MULTI-HYDROXYLATED ALIPHATIC HYDROCARBON COMPOUNDS 审中-公开
    多羟基化学烃类化合物氢化过程中蒸汽相纯化的工艺和装置

    公开(公告)号:US20110152580A1

    公开(公告)日:2011-06-23

    申请号:US12595488

    申请日:2008-04-11

    Abstract: A process for converting multihydroxylated-aliphatic hydrocarbon compound(s) and/or ester(s) thereof to chlorohydrins and/or esters thereof is disclosed in which one or more of multihydroxylated-aliphatic hydrocarbon compound(s) and/or ester(s) thereof and/or monochlorohydrin(s) and/or ester(s) thereof with at least one chlorinating feed stream comprising at least one chlorinating agent and at least one impurity having a boiling point below the boiling point of the chlorohydrin product having the lowest boiling under hydrochlorination conditions, optionally in the presence of water, one or more catalyst(s), and/or one or more heavy byproduct(s) in a reaction vessel under hydrochlorination conditions, wherein the liquid-phase reaction mixture is maintained at a temperature below the boiling point of the chlorohydrin product having the lowest boiling point under hydrochlorination conditions and greater than the boiling point(s) of the at least one impurity and a vapor phase vent stream comprising the at least one impurity is removed from the liquid phase reaction mixture. An apparatus suitable for carrying out the disclosed process is illustrated in FIG. 1 of the drawings. The process and apparatus improve conversion rates and/or provide for recovery of chlorinating agent for lower operating costs.

    Abstract translation: 公开了一种将多羟基化脂族烃化合物和/或其酯转化为氯醇和/或其酯的方法,其中一种或多种多羟基化脂族烃化合物和/或酯(一种或多种) 和/或一氯代醇和/或其酯与至少一种氯化进料流一起包含至少一种氯化剂和至少一种沸点低于具有最低沸点的氯代醇产物的沸点的杂质 在氢氯化条件下,任选地在氢氯化条件下在反应容器中存在水,一种或多种催化剂和/或一种或多种重质副产物,其中将液相反应混合物保持在温度 低于氢氯化条件下具有最低沸点的氯代醇产物的沸点并且大于至少一种杂质的沸点和气相排出流c 从液相反应混合物中除去至少一种杂质。 图1中示出了适用于执行所公开的处理的装置。 1图。 该方法和设备提高转化率和/或提供氯化剂的回收以降低运行成本。

    PROCESS FOR PRODUCING EPOXIDES FROM OLEFINIC COMPOUNDS
    15.
    发明申请
    PROCESS FOR PRODUCING EPOXIDES FROM OLEFINIC COMPOUNDS 有权
    从烯烃化合物生产环氧化物的方法

    公开(公告)号:US20100029848A1

    公开(公告)日:2010-02-04

    申请号:US12304924

    申请日:2007-06-19

    CPC classification number: C07D301/12 C07D303/38

    Abstract: A process for producing an epoxide such as a cycloaliphatic diepoxide by the reaction of an olefin such as a cycloaliphatic diene with hydrogen peroxide (H2O2) as an oxidant in the presence of a catalytic system under pH control for example at a pH of less than about 5. The present invention is advantageously used for the epoxidation of olefinic compounds such as olefins and aliphatic or aromatic dienes.

    Abstract translation: 在pH控制下,例如在小于约pH的pH控制下,在催化体系存在下,通过烯烃如脂环族二烯与过氧化氢(H 2 O 2)作为氧化剂的反应来制备环氧化物如环脂族二环氧化物的方法, 本发明有利地用于烯烃化合物如烯烃和脂族或芳族二烯烃的环氧化。

    Process for the continuous production of an olefinic oxide
    19.
    发明授权
    Process for the continuous production of an olefinic oxide 有权
    连续生产烯属氧化物的方法

    公开(公告)号:US07138534B2

    公开(公告)日:2006-11-21

    申请号:US10344441

    申请日:2001-08-13

    CPC classification number: C07D303/04 C07D301/12

    Abstract: A process for the continuous production of an olefinic oxide such as propylene oxide by direct catalytic oxidation of an olefin with hydrogen peroxide. The process involves successive reaction, distillation, decomposition, phase, separation, condensation and distillation with recycle of various streams to provide improved catalyst life and reaction selectivity.

    Abstract translation: 通过用过氧化氢直接催化氧化烯烃来连续生产环氧丙烷等氧化烯的方法。 该方法包括连续反应,蒸馏,分解,相分离,缩合和蒸馏,各种流的再循环以提供改善的催化剂寿命和反应选择性。

    Process for the preparation of epoxites
    20.
    发明授权
    Process for the preparation of epoxites 有权
    环氧化物的制备方法

    公开(公告)号:US06300506B1

    公开(公告)日:2001-10-09

    申请号:US09626456

    申请日:2000-07-26

    CPC classification number: C07D301/12 Y02P20/584

    Abstract: A continuous process is described for the preparation of olefin oxides by direct epoxidation of an olefin with hydrogen peroxide, or compounds capable of producing hydrogen peroxide under the reaction conditions, in a solvent medium, in the presence of a catalytic system consisting of a zeolite containing titanium and a buffer system with a pH controlled within the values of 5.5 to 8.0, consisting of a nitrogenated base and a salt thereof with an organic or inorganic acid. The process allows high conversions and selectivities of the olefin into the corresponding oxide with a catalytic activity stable over a period of time.

    Abstract translation: 描述了一种连续方法,用于通过在溶剂介质中,在由含有沸石的沸石组成的催化剂体系的存在下,用过氧化氢或能够在反应条件下能够产生过氧化氢的化合物直接环氧化烯烃氧化物 钛和缓冲体系,其pH值控制在5.5至8.0的范围内,由含氮碱和其与有机或无机酸的盐组成。 该方法允许烯烃的高转化率和选择性进入相应的氧化物,催化活性在一段时间内稳定。

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