中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

233 records (took 0.017 seconds)

    Acetic anhydride production by way of carbonylation with enhanced reaction and flashing
    133.
    发明申请
    Acetic anhydride production by way of carbonylation with enhanced reaction and flashing 有权
    通过羰基化反应生成乙酸酐，反应和闪烁

    公开(公告)号：US20110021816A1

    公开(公告)日：2011-01-27

    申请号：US12924429

    申请日：2010-09-27

    Applicant: Mark O. Scates

    Inventor： Mark O. Scates

    IPC: C07C51/12 ,  C07C51/56 ,  C07C51/54 ,  B01J19/00

    CPC classification number: B01J8/382 ,  B01J8/007 ,  B01J8/20 ,  B01J2208/00283 ,  B01J2219/00006 ,  B01J2219/0004 ,  C07C51/12 ,  C07C51/54 ,  C07C53/08 ,  C07C53/12

    Abstract: A method of making acetic anhydride or a mixture of acetic anhydride and acetic acid comprising: (a) catalytically reacting a feedstock containing methyl acetate and/or dimethyl ether with carbon monoxide in the presence of a homogeneous rhodium catalyst and methyl iodide in a reactor vessel which contains a substantially anhydrous liquid reaction mixture including acetic acid, acetic anhydride, methyl acetate and/or dimethyl ether, methyl iodide and the homogeneous catalyst, the reactor vessel being operated at a reactor pressure; (b) withdrawing reaction mixture from the reaction vessel and feeding the withdrawn reaction mixture along with additional carbon monoxide to a pre-flasher/post reactor vessel operated at a reduced pressure below the reactor vessel pressure; (c) venting light ends in the pre-flasher vessel and concurrently consuming methyl acetate and/or dimethyl ether in the pre-flasher/post reactor vessel to produce a pre-flash mixture which is enriched in acetic anhydride and diminished in methyl iodide and methyl acetate and/or dimethyl ether as compared with the reaction mixture; (d) withdrawing the pre-flash reaction mixture from the pre-flasher/post reactor vessel and feeding the pre-flash mixture to a flash vessel; and (e) flashing a crude product stream from the mixture in a flash vessel operated at a pressure substantially below the pressure of the pre-flasher/post reactor vessel.

    Abstract translation: 一种制备乙酸酐或乙酸酐和乙酸的混合物的方法，包括：（a）在均匀的铑催化剂和甲基碘存在下在反应器容器中催化反应含有乙酸甲酯和/或二甲醚的原料与一氧化碳 其包含基本上无水的液体反应混合物，包括乙酸，乙酸酐，乙酸甲酯和/或二甲醚，甲基碘和均相催化剂，反应器容器在反应器压力下操作; （b）从反应容器中取出反应混合物，并将排出的反应混合物与另外的一氧化碳一起送入反应器/反应器前的反应器容器中，该反应器容器在低于反应器容器压力的压力下操作; （c）在预闪蒸器容器内放出轻质的末端，同时在预闪蒸发器/反应器容器中消耗乙酸甲酯和/或二甲醚，以产生富含乙酸酐并在甲基碘中减少的预闪蒸混合物， 与反应混合物相比，乙酸甲酯和/或二甲醚; （d）将预闪蒸反应混合物从预闪蒸发器/反应堆容器中取出并将预闪蒸混合物送入闪蒸容器; 和（e）在以基本上低于预闪蒸发器/反应器反应器容器的压力的压力下操作的闪蒸容器中从混合物中闪蒸粗产物流。

    Stirring apparatus and method of use of said apparatus
    136.
    发明授权
    Stirring apparatus and method of use of said apparatus 有权
    所述装置的搅拌装置和使用方法

    公开(公告)号：US07775703B2

    公开(公告)日：2010-08-17

    申请号：US10547846

    申请日：2004-02-27

    Applicant: Stephen Roy Partington

    Inventor： Stephen Roy Partington

    IPC: B01F7/24

    CPC classification number: B01F7/0065 ,  B01F15/027 ,  B01F2215/0427 ,  B01F2215/0431 ,  B01J8/382 ,  B01J19/0066 ,  B01J19/18 ,  B01J2208/00867 ,  B01J2219/00779

    Abstract: The present invention provides an apparatus comprising a vessel having a conduit extending therefrom, and a stirrer, a section of which is adapted to be located within the conduit and a section of which is adapted to be located within the vessel, said stirrer being adapted such that, in use, material within the conduit is conveyed in a direction towards the vessel and/or in a direction away from the vessel.

    Abstract translation: 本发明提供了一种装置，其包括具有从其延伸的导管的容器，以及搅拌器，其一部分适于位于导管内，其一部分适于位于容器内，所述搅拌器适于使用 在使用中，导管内的材料沿着朝向容器的方向和/或远离容器的方向被输送。

    Continuous slurry polymerization process and appparatus
    139.
    发明授权
    Continuous slurry polymerization process and appparatus 有权
    连续淤浆聚合工艺和设备

    公开(公告)号：US06833415B2

    公开(公告)日：2004-12-21

    申请号：US10079226

    申请日：2002-02-19

    Applicant: James Austin Kendrick ,  Thomas W. Towles ,  Scott Thomas Roger

    Inventor： James Austin Kendrick ,  Thomas W. Towles ,  Scott Thomas Roger

    IPC: C08F200

    CPC classification number: B01D3/06 ,  B01J8/003 ,  B01J8/005 ,  B01J8/0055 ,  B01J8/007 ,  B01J8/382 ,  B01J19/0053 ,  B01J19/1837 ,  B01J2208/0007 ,  B01J2208/00539 ,  B01J2208/00761 ,  B01J2208/00769 ,  B01J2208/00867 ,  B01J2219/00006 ,  B01J2219/00033 ,  B01J2219/00103 ,  B01J2219/00114 ,  B01J2219/00162 ,  B01J2219/00164 ,  B01J2219/00191 ,  B01J2219/002 ,  B01J2219/00213 ,  B01J2219/00231 ,  B01J2219/00236 ,  B01J2219/0024 ,  C08F2/00 ,  C08F6/003 ,  C08F10/00 ,  C08F210/16 ,  C08F2/14 ,  C08F210/14

    Abstract: A process/apparatus is disclosed for continuously separating a liquid medium comprising diluent and unreacted monomers from a polymerization effluent comprising diluent, unreacted monomers and polymer solids, comprising a continuous discharge of the polymerization effluent from a slurry reactor through a discharge valve and transfer conduit into a first intermediate pressure flash tank with a conical bottom defined by substantially straight sides inclined at an angle to that of horizontal equal to or greater than the angle of slide of the slurry/polymer solids and an exit seal chamber of such diameter (d) and length (l) as to maintain a desired volume of concentrated polymer solids/slurry in the exit seal chamber such as to form a pressure seal while continuously discharging a plug flow of concentrated polymer solids/slurry bottom product of the first flash tank from the exit seal chamber through a seal chamber exit reducer with inclined sides defined by substantially straight sides inclined at an angle to that of horizontal equal to or greater than the angle of slide of the polymer solids which remain after removal of about 50 to 100% of the inert diluent therefrom to a second flash tank at a lower pressure.

    Abstract translation: 公开了一种用于从包含稀释剂，未反应单体和聚合物固体的聚合流出物连续分离包含稀释剂和未反应单体的液体介质的方法/装置，其包括通过排放阀将淤浆反应器的聚合流出物连续排出并将传输导管 具有锥形底部的第一中间压力闪蒸罐，该锥形底部由基本上直的侧面倾斜的水平面倾斜，该水平面等于或大于浆料/聚合物固体的滑动角度以及直径（d）的出口密封室， 长度（l）以在出口密封室中保持所需体积的浓缩聚合物固体/浆料，以形成压力密封，同时连续地将第一闪蒸罐的浓缩聚合物固体/浆料底部产物的塞流从出口 密封室通过密封室出口减速器，斜面大致直线形成 以等于或大于在较低压力下将约50至100％的惰性稀释剂从其中除去至第二闪蒸罐后残留的聚合物固体的滑动角度等于或大于水平的角度。

    Fluidization additives to fine powders
    140.
    发明授权
    Fluidization additives to fine powders 失效
    流化添加剂成细粉末

    公开(公告)号：US06833185B2

    公开(公告)日：2004-12-21

    申请号：US10193687

    申请日：2002-07-12

    Applicant: Jesse Zhu ,  Hui Zhang

    Inventor： Jesse Zhu ,  Hui Zhang

    IPC: B32B516

    CPC classification number: C09D5/033 ,  B01J8/382 ,  B01J2208/00681 ,  B01J2208/025 ,  B33Y70/00 ,  C08J3/124 ,  Y10T428/25 ,  Y10T428/256 ,  Y10T428/258 ,  Y10T428/2982

    Abstract: The present invention provides powder fluidization additives for increasing flowability of fine powders. The powder fluidization additives have both a smaller size than the fine powder and a mean apparent particle density less than the mean apparent particle density of the fine powder. The particles of the additive act to separate the fine powder particles and reduce interparticle forces allowing the flowability of the fine powder to be increased.

    Abstract translation: 本发明提供了用于提高细粉的流动性的粉末流化添加剂。 粉末流化添加剂具有比细粉末更小的尺寸和小于细粉末的平均表观颗粒密度的平均表观粒子密度。 添加剂的颗粒起到分离细粉末颗粒的作用，并降低颗粒间的力，从而使细粉的流动性增加。

Patent Agency Ranking