IN-LINE PROCESS FOR GENERATING COMONOMER
    2.
    发明申请
    IN-LINE PROCESS FOR GENERATING COMONOMER 审中-公开
    用于生成COMONOMER的在线过程

    公开(公告)号:WO2007102955A3

    公开(公告)日:2007-12-06

    申请号:PCT/US2007002276

    申请日:2007-01-26

    IPC分类号: C07C2/02

    摘要: The present invention relates to an in-line method for generating comonomer, such as 1-hexene or 1-octene, from monomer, such as ethylene. The comonomer generated is directly transported, without isolation or storage, to a polyethylene polymerization reactor. The in-line method for generating comonomer includes the steps of providing an in-line comonomer synthesis reactor and a downstream gas/liquid phase separator prior to a polyethylene polymerization reactor; feeding ethylene monomer and a catalyst in a solvent to the comonomer synthesis reactor; reacting the ethylene monomer and the catalyst in solvent under reaction conditions to produce an effluent stream including ethylene monomer and comonomer; passing the effluent stream from the comonomer synthesis reactor to the downstream gas/liquid phase separator to separate a gas stream from a bottom stream, wherein the gas stream is a mixture of ethylene monomer, and comonomer; and passing the gas stream to the polyethylene polymerization reactor to provide the necessary comonomer input. The in-line method is useful in the production of LLDPE, and other branched polyethylene based polymers. Some benefits include process simplification and reduced capital and operating costs.

    摘要翻译: 本发明涉及从单体如乙烯生成共聚单体如1-己烯或1-辛烯的直列方法。 生成的共聚单体直接输送到聚乙烯聚合反应器中,无需隔离或储存。 用于生成共聚单体的在线方法包括在聚乙烯聚合反应器之前提供在线共聚单体合成反应器和下游气/液相分离器的步骤; 将乙烯单体和催化剂在溶剂中加入到共聚单体合成反应器中; 在反应条件下使乙烯单体和催化剂在溶剂中反应,以产生包括乙烯单体和共聚单体的流出物流; 将来自共聚单体合成反应器的流出物流输送到下游气/液相分离器以从底部流分离气流,其中气流是乙烯单体和共聚单体的混合物; 并将气流送入聚乙烯聚合反应器以提供所需的共聚单体输入。 在线方法可用于生产LLDPE和其他支化聚乙烯基聚合物。 一些好处包括流程简化,降低资本和运营成本。

    PROCESS FOR PRODUCING alpha-OLEFINS
    5.
    发明申请
    PROCESS FOR PRODUCING alpha-OLEFINS 审中-公开
    生产α-烯烃的方法

    公开(公告)号:WO2004026795A3

    公开(公告)日:2004-07-22

    申请号:PCT/US0329405

    申请日:2003-09-17

    申请人: DU PONT

    摘要: alpha-Olefins are made in a modified plug flow reactor system by the oligomerization of ethylene using an iron complex of a selected diimine of a 2,6-pyridinecarboxaldehyde(bisimine) or 2,6-diacylpyridine(bisimine) as the oligomerization catalyst. The reactor is modified to add the iron complex at two or more points along the length of the plug flow reactor, the distance between addition points being dependent on the half-life of the active ethylene oligomerization catalyst.

    摘要翻译: 通过使用2,6-吡啶甲醛(双亚胺)或2,6-二酰基吡啶(双亚胺)的选择的二亚胺的铁络合物作为低聚催化剂,通过乙烯的低聚而在改性活塞流反应器系统中制备α-烯烃。 修改反应器以沿着活塞流反应器的长度在两个或更多个点添加铁络合物,加入点之间的距离取决于活性乙烯低聚催化剂的半衰期。

    OLIGOMERIZATION OF OLEFINS
    6.
    发明申请
    OLIGOMERIZATION OF OLEFINS 审中-公开
    油脂的低聚

    公开(公告)号:WO01019762A1

    公开(公告)日:2001-03-22

    申请号:PCT/US2000/024995

    申请日:2000-09-13

    摘要: A process for oligomerizing at least one heavy olefin having at least 5 carbon atoms per molecule in the presence of at least one co-fed light olefin having less than 5 carbon atoms per molecule is disclosed. The presence of the at least one co-fed light olefin results in increased C6=(C6 olefin) conversion (if present as one of the at least one heavy olefins), increased weight % of C11+ hydrocarbons in the C9+ material of the product and increased cetane of the C9+ material of the product as compared to the oligomerization of the at least one heavy olefin without the co-fed at least one light olefin.

    摘要翻译: 公开了在至少一种每分子具有少于5个碳原子的共同供给的轻质烯烃的存在下,使至少一种每分子具有至少5个碳原子的重质烯烃低聚的方法。 至少一种共同进料的轻质烯烃的存在导致C6 =(C6烯烃)转化率增加(如果作为至少一种重质烯烃之一存在),则C9 +材料中C11 +烃的重量%增加,以及 与没有共同进料的至少一种轻质烯烃的至少一种重质烯烃的低聚相比,产物的C9 +材料的增加的十六烷。

    SYNTHESIS OF BIS(ALKYL CYCLOPENTADIENYL) METALLOCENES
    7.
    发明申请
    SYNTHESIS OF BIS(ALKYL CYCLOPENTADIENYL) METALLOCENES 审中-公开
    BIS(烷基环戊二烯基)金属的合成

    公开(公告)号:WO00073248A1

    公开(公告)日:2000-12-07

    申请号:PCT/US2000/014948

    申请日:2000-05-30

    摘要: A method for producing an alkyl cyclopentadiene by reacting cyclopentadienyl Grignard with an alkyl halide and for converting the alkyl cyclopentadiene to a bis(n-alkyl cyclopentadienyl) Group IV metal dihalide is described.

    摘要翻译: 描述了通过使环戊二烯基格利雅与烷基卤反应并将烷基环戊二烯转化成双(正烷基环戊二烯基)IV族金属二卤化物来制备烷基环戊二烯的方法。

    ZEOLITE BOUND CATALYST CONTAINING AT LEAST THREE DIFFERENT ZEOLITES; USE FOR HYDROCARBON CONVERSION
    8.
    发明申请
    ZEOLITE BOUND CATALYST CONTAINING AT LEAST THREE DIFFERENT ZEOLITES; USE FOR HYDROCARBON CONVERSION 审中-公开
    包含至少三种不同沸石的沸石界面催化剂; 用于油气转化

    公开(公告)号:WO00066263A1

    公开(公告)日:2000-11-09

    申请号:PCT/US2000/012341

    申请日:2000-05-05

    摘要: There is provided a zeolite bound zeolite catalyst which does not contain significant amount of non-zeolitic binder and can be tailored to optimize its performance and a process for converting hydrocarbons utilizing the zeolite bound zeolite catalyst. The zeolite bound zeolite catalyst comprises core crystals containing first crystals of a first zeolite and optionally second crystals of a second zeolite having a composition, structure type, or both that is different from said first zeolite and binder crystals containing third crystals of a third zeolite and optionally fourth crystals of a fourth zeolite having a composition, structure type, or both that is different from said third zeolite. If the core crystals do not contain the second crystals of the second zeolite, then the binder crystals must contain the fourth crystals of the fourth zeolite. The zeolite bound zeolite finds application in hydrocarbon conversion processes, e.g., catalytic cracking, alkylation, disproportional of toluene, isomerization, and transalkylation reactions.

    摘要翻译: 提供沸石结合的沸石催化剂,其不含有显着量的非沸石粘合剂,并且可以调整其优化其性能,以及使用沸石结合的沸石催化剂转化烃的方法。 沸石结合的沸石催化剂包括含有第一沸石的第一晶体的芯晶体和任选具有与所述第一沸石不同的组成,结构类型或两者的第二沸石的第二晶体,以及包含第三沸石的第三晶体的粘结剂晶体, 任选具有与所述第三沸石不同的组成,结构类型或二者的第四沸石的第四晶体。 如果核心晶体不含第二沸石的第二晶体,则粘合剂晶体必须含有第四沸石的第四晶体。 沸石结合的沸石可用于烃转化过程,例如催化裂化,烷基化,甲苯不成比例,异构化和烷基转移反应。

    SEPARATION OF FURAN-CONTAINING COMPOUNDS
    10.
    发明申请

    公开(公告)号:WO2021178329A1

    公开(公告)日:2021-09-10

    申请号:PCT/US2021/020331

    申请日:2021-03-01

    摘要: A method of forming an immobilized and separated Diels-Alder adduct is disclosed. This method includes a Diels-Alder reaction between a surface-supported dienophile and a furan-based diene to form an immobilized and separated Diels-Alder adduct. The reversible Diels-Alder reaction can separate a furan-containing compound in a mixed chemical stream with the surface-supported dienophile being a n-propylmaleimide alkylated on a silica support and a furan-based diene being methyl furan.