公开(公告)号：US20020182121A1

公开(公告)日：2002-12-05

申请号：US10147219

申请日：2002-05-14

Applicant: Exxon Chemical Patents, Inc.

Inventor： James Austin Kendrick

IPC: C08F002/00 ,  C08F002/01

CPC classification number: B01J8/005 ,  B01D3/06 ,  B01J8/003 ,  B01J8/0055 ,  B01J8/007 ,  B01J8/382 ,  B01J19/1837 ,  B01J2208/0007 ,  B01J2208/00539 ,  B01J2208/00761 ,  B01J2208/00769 ,  B01J2208/00867 ,  B01J2219/00006 ,  B01J2219/00103 ,  B01J2219/00114 ,  B01J2219/00191 ,  B01J2219/002 ,  B01J2219/00213 ,  B01J2219/00231 ,  B01J2219/00236 ,  B01J2219/0024 ,  C08F6/003 ,  C08F6/24 ,  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 (I) 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 said 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（I），以便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，同时连续地将所述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，斜面由基本上直的侧面i定义 以等于或大于在约50至100％的惰性稀释剂从其中移除至较低压力的第二闪蒸罐后保留的聚合物固体的滑动角度等于或大于水平角的角度倾斜。

公开(公告)号：US20020013429A1

公开(公告)日：2002-01-31

申请号：US09833076

申请日：2001-04-12

Inventor： Leo Smit ,  Frits P. Moens ,  Stanislaus M. P. Mutsers

IPC: C08F002/00 ,  C08F002/01

CPC classification number: B01J8/36 ,  B01J8/10 ,  B01J2219/182 ,  C08F10/00 ,  C10M2201/041 ,  C10M2203/10 ,  C10M2203/102 ,  C10M2207/281 ,  C10M2207/282 ,  C10M2207/283 ,  C10M2207/286 ,  C10M2207/34 ,  C10M2229/02 ,  C10M2229/05 ,  C08F2/01

Abstract: The invention relates to a process and a device that are suitable for the preparation of a polymer based on an olefinic monomer and optionally one or more comonomers that are copolymerisable therewith, in a horizontal reactor, divided into at least two zones and fitted with a stirring mechanism, which is operated under subfluidization conditions, the polymer formed being discharged from the reactor separately from other reactor effluent, it being possible to vary the composition of the overall feed to be supplied to a zone between two zones at least and the reactor effluent separated from polymer leaving the reactor as a single stream, at least part of this stream being returned to the reactor as feed after one or more separating steps.

Abstract translation: 本发明涉及一种方法和装置，其适用于在水平反应器中制备基于烯烃单体和任选的一种或多种可与其共聚的共聚单体的聚合物，分成至少两个区域并配合搅拌 机制，其在亚液化条件下操作，形成的聚合物与其他反应器流出物分开地从反应器排出，可以至少将待供应至两个区域之间的区域的总进料的组成变化，并且将反应器流出物分离 从作为单一流离开反应器的聚合物，至少部分该物流在一个或多个分离步骤之后作为进料返回到反应器。

公开(公告)号：US20030009070A1

公开(公告)日：2003-01-09

申请号：US10165909

申请日：2002-06-10

Inventor： Michael Joseph Doll ,  Brendan Dermot Murray

IPC: C07C005/25 ,  C08F002/01

CPC classification number: C07C5/2518 ,  C07C2529/08

Abstract: A process for the double bond isomerization of an olefin, which process comprises contacting a feed comprising the olefin with an isomerization catalyst, wherein prior to contacting the feed with the isomerization catalyst one or more components of the feed are pretreated by contacting with a pretreating material which comprises a zeolite which has a pore size of at least 0.35 nm; a plant which is suitable for carrying out the isomerization process; and a process for treating an olefin mixture which comprises a linear null-olefin and a vinylidene olefin which is isomeric to the linear null-olefin and which is of the general formula CH2nullC(R1)R2, wherein R1 represents an ethyl group and R2 represents a linear 1-alkyl group, which process comprises isomerizing the vinylidene olefin to form a double bond isomer of the vinylidene olefin by contacting a feed comprising the olefin mixture with an isomerization catalyst, and separating the linear null-olefin from the double bond isomer of the vinylidene olefin, wherein prior to contacting the feed with the isomerization catalyst one or more components of the feed are pretreated by contacting with a pretreating material which comprises a zeolite which has a pore size of at least 0.35 nm.

Abstract translation: 一种烯烃双键异构化的方法，该方法包括将包含烯烃的进料与异构化催化剂接触，其中在将进料与异构化催化剂接触之前，将进料的一种或多种组分与预处理材料 其包含孔径至少为0.35nm的沸石; 适用于进行异构化处理的植物; 以及一种处理烯烃混合物的方法，该烯烃混合物包含直链α-烯烃和与线性α-烯烃异构的亚乙烯基烯烃，其通式为CH 2 = C（R 1）R 2，其中R 1表示乙基， R2表示直链1-烷基，该方法包括使亚乙烯基烯烃异构化以形成亚乙烯基烯烃的双键异构体，其通过使包含烯烃混合物的进料与异构化催化剂接触，并将线性α-烯烃与双键 异构烯烃的异构体，其中在使进料与异构化催化剂接触之前，通过与包含孔径至少为0.35nm的沸石的预处理材料接触来预处理进料的一种或多种组分。