利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

34 条记录 (耗时 0.016 秒)

    PROCESS FOR FORMING PROPYLENE OXIDE FROM OXIDATION OF METHYL BENZYL ALCOHOL
    1.
    发明申请
    PROCESS FOR FORMING PROPYLENE OXIDE FROM OXIDATION OF METHYL BENZYL ALCOHOL 有权
    由甲基苄基醇氧化形成丙烯氧化物的方法

    公开(公告)号：US20160297783A1

    公开(公告)日：2016-10-13

    申请号：US15093370

    申请日：2016-04-07

    申请人： Lyondell Chemical Technology, L.P.

    发明人： Vu A. Dang ,  David W. Leyshon ,  Sandor Nagy ,  Roger A. Grey

    IPC分类号： C07D301/12 ,  C07D301/36 ,  B01J29/70 ,  C07D301/32

    CPC分类号： C07D301/12 ,  B01J29/7088 ,  C07D301/32 ,  C07D301/36 ,  C07D303/04 ,  Y02P20/52

    摘要： The present disclosure relates to a method of preparing propylene oxide comprising the steps: (a) oxidizing alpha-methylbenzyl alcohol with air to form a first reaction mixture comprising hydrogen peroxide and acetophenone; (b) reacting propylene with the first reaction mixture in the presence of a catalyst to form a second reaction mixture comprising propylene oxide; (c) separating the propylene oxide from the second reaction mixture to form a third reaction mixture; (d) heating the third reaction mixture to decompose hydrogen peroxide, whereby a fourth reaction mixture is formed; (e) hydrogenating the acetophenone in the fourth reaction mixture with hydrogen to form a fifth reaction mixture comprising alpha-methylbenzyl alcohol; and (f) separating alpha-methylbenzyl alcohol from the fifth reaction mixture and returning the methyl benzyl alcohol to step (a).

    Hydroquinone to inhibit fouling of epichlorohydrin equipment
    2.
    发明授权
    Hydroquinone to inhibit fouling of epichlorohydrin equipment 失效
    氢醌防止表氯醇设备结垢

    公开(公告)号：US6024839A

    公开(公告)日：2000-02-15

    申请号：US965661

    申请日：1997-11-06

    申请人： Duane Mark Schufeldt

    发明人： Duane Mark Schufeldt

    IPC分类号： B01D3/34 ,  C07D301/32 ,  C07D301/36

    CPC分类号： C07D301/32 ,  B01D3/34

    摘要： A method of inhibiting fouling of one or more pieces of equipment for processing crude epichlorohydrin by treating at least one epichlorohydrin stream entering or exiting the one or more pieces of equipment with hydroquinone as an antifoulant.

    摘要翻译： 通过用氢醌作为防污剂处理进入或离开一个或多个设备的至少一种表氯醇流来抑制一种或多种设备处理粗表氯醇的结垢的方法。

    Method for shipping and storing ethylene oxide
    3.
    发明授权
    Method for shipping and storing ethylene oxide 失效
    运输和储存环氧乙烷的方法

    公开(公告)号：US4344916A

    公开(公告)日：1982-08-17

    申请号：US240746

    申请日：1981-03-05

    申请人： Nicholas B. Lorette ,  Jerry L. Fosnaugh

    发明人： Nicholas B. Lorette ,  Jerry L. Fosnaugh

    IPC分类号： B01J19/00 ,  A01N31/00 ,  C07D301/36 ,  C07D303/00

    CPC分类号： B01J19/002

    摘要： A method of shipping liquid ethylene oxide in a manner which reduces the explosive hazard during shipment by combining the liquid ethylene oxide with at least 52% of liquid propylene oxide based on the total weight of the mixture. It is especially useful for bulk liquid shipment marine vessels and the ethylene oxide is easily separated from the mixture for use by a simple distillation.

    摘要翻译： 一种以液体环氧乙烷与至少52％的液体环氧丙烷相混合的方式运送液体环氧乙烷的方法，该方法通过将液体环氧乙烷与混合物的总重量相结合来减少运输过程中的爆炸危险。 对于散装液体运输船舶尤其有用，通过简单的蒸馏，环氧乙烷容易与混合物分离使用。

    PROCESS FOR THE EPOXIDATION OF PROPENE
    4.
    发明申请
    PROCESS FOR THE EPOXIDATION OF PROPENE 审中-公开

    公开(公告)号：US20180134676A1

    公开(公告)日：2018-05-17

    申请号：US15570167

    申请日：2016-04-19

    申请人： Robert JAHN ,  Wolfgang WÖLL ,  Bernd JAEGER ,  Matthias PASCALY

    发明人： Robert JAHN ,  Wolfgang WÖLL ,  Bernd JAEGER ,  Matthias PASCALY

    IPC分类号： C07D301/12 ,  C07D301/36 ,  C07D303/04 ,  B01J29/89 ,  B01D3/34 ,  B01D3/42 ,  B01D19/04

    CPC分类号： C07D301/12 ,  B01D3/34 ,  B01D3/4294 ,  B01D19/0409 ,  B01J29/89 ,  C07D301/36 ,  C07D303/04

    摘要： In a process for the epoxidation of propene, comprising the steps: reacting propene with hydrogen peroxide in the presence of a titanium silicalite catalyst and a methanol solvent; separating non-reacted propene and propene oxide from the resulting reaction mixture to provide a solvent mixture comprising methanol and water in a combined amount of at least 90% by weight; and feeding this solvent mixture as a feed stream to a continuously operated methanol distillation column at a feed point in the middle section of said column to provide an overhead product comprising at least 90% by weight methanol and a bottoms product comprising at least 90% by weight water; the addition of a liquid defoamer, having a solubility in the feed stream of less than 10 mg/kg at 25° C. and a surface tension at the liquid air interface of less than 22 mN/m at 20° C., at or above the feed point in an amount exceeding the solubility of the liquid defoamer in the feed stream suppresses foam formation in the methanol distillation column.

    Process and assembly for producing alkylene oxides and glycol ethers
    5.
    发明授权
    Process and assembly for producing alkylene oxides and glycol ethers 有权
    用于生产环氧烷和二醇醚的方法和装配

    公开(公告)号：US09169226B2

    公开(公告)日：2015-10-27

    申请号：US13808594

    申请日：2011-06-28

    申请人： Tina L. Arrowood ,  Derrick W. Flick ,  John F. Ackford

    发明人： Tina L. Arrowood ,  Derrick W. Flick ,  John F. Ackford

    IPC分类号： C07D301/32 ,  C07D301/36

    CPC分类号： C07D301/32 ,  B01J19/245 ,  B01J2219/24 ,  C07D301/12 ,  C07D301/36

    摘要： There is provided a process for manipulating the amount of alkyl alcohol in a product stream, e.g., such as an alkylene oxide product stream. More particularly, and in contrast to conventional processes wherein substantially all of the alkyl alcohol must be separated and desirably recycled, in the present process, a greater amount of alkyl alcohol may be allowed to remain in a partially refined alkylene oxide product stream. The residual alkyl alcohol is subsequently substantially entirely reacted to form a downstream product, e.g., a glycol ether, which is more easily separated from the alkylene oxide product stream. Indeed, the amount of alkyl alcohol in the partially refined alkylene oxide product stream can be selected based upon the output of glycol ethers, if desired.

    摘要翻译： 提供了一种操纵产物流中烷基醇的量的方法，例如烯化氧产物流。 更具体地，与其中基本上所有烷基醇必须分离并期望再循环的常规方法相反，在本方法中，可以使更多量的烷基醇保留在部分精制的环氧烷产物流中。 残留的烷基醇随后基本上完全反应以形成下游产物，例如乙二醇醚，其更容易从环氧烷产物流中分离出来。 实际上，如果需要，可以基于二醇醚的输出来选择部分精制的环氧烷产物流中的烷基醇的量。

    Process for the preparation of propylene oxide
    10.
    发明授权
    Process for the preparation of propylene oxide 有权

    公开(公告)号：US10544115B2

    公开(公告)日：2020-01-28

    申请号：US16076600

    申请日：2017-02-16

    申请人： BASF SE

    发明人： Dominic Riedel ,  Joaquim Henrique Teles ,  Heiner Schelling ,  Ulrike Wegerle ,  Ulrich Mueller ,  Andrei-Nicolae Parvulescu ,  Jochen Mannweiler ,  Timo Henn ,  Thomas Luederitz ,  Nicolai Tonio Woerz ,  Christian Mueller ,  Markus Weber ,  Daniel Urbanczyk

    IPC分类号： C07D301/12 ,  C07D301/36 ,  B01J19/00 ,  B01J29/70 ,  C07D303/04

    摘要： A continuous process for the preparation of propylene oxide, comprising a start-up stage and normal run stage, wherein the normal run stage comprises (i) continuously providing a liquid feed stream comprising propene, hydrogen peroxide, acetonitrile, a formate salt, water and optionally propane, wherein in the liquid feed stream, the molar amount of the formate salt relative to the molar amount of hydrogen peroxide at a given point of time during the normal run stage is aN(Fo/H2O2); (ii) continuously passing the liquid feed stream provided in (i) into an epoxidation zone comprising a catalyst comprising a titanium zeolite having framework type MWW, and subjecting the liquid feed stream to epoxidation reaction conditions in the epoxidation zone, obtaining a reaction mixture comprising propylene oxide, acetonitrile, water, the formate salt, optionally propene, and optionally propane; (iii) continuously removing an effluent stream from the epoxidation zone, the effluent stream comprising propylene oxide, acetonitrile, water, at least a portion of the formate salt, optionally propene, and optionally propane; wherein the normal run stage is characterized in an average rate of change of aN(Fo/H2O2) of less than 0 h−1.