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    Process for generating alpha olefin comonomers
    1.
    发明申请
    Process for generating alpha olefin comonomers 有权
    产生α-烯烃共聚单体的方法

    公开(公告)号：US20070185362A1

    公开(公告)日：2007-08-09

    申请号：US11654187

    申请日：2007-01-17

    申请人： James Lattner ,  John Walzer ,  Krishnan Sankaranarayanan ,  John Buchanan ,  Milind Ajinkya ,  Stephen Wood ,  Anastasios Skoulidas ,  Jay Reimers ,  Timothy Shaffer

    发明人： James Lattner ,  John Walzer ,  Krishnan Sankaranarayanan ,  John Buchanan ,  Milind Ajinkya ,  Stephen Wood ,  Anastasios Skoulidas ,  Jay Reimers ,  Timothy Shaffer

    IPC分类号： C07C2/02

    CPC分类号： C07C2/32 ,  C07C2/36 ,  C07C2531/22 ,  C07C2531/24 ,  Y02P20/52 ,  C07C11/02

    摘要： The present invention relates to a method for preparing olefin comonomers from ethylene. The comonomer generated can be used in a subsequent process, such as a polyethylene polymerization reactor. The comonomer generated can be transported, optionally without isolation or storage, to a polyethylene polymerization reactor. One method includes the steps of: feeding ethylene and a catalyst in a solvent/diluent to one or more comonomer synthesis reactors; reacting the ethylene and the catalyst under reaction conditions sufficient to produce an effluent comprising a desired comonomer; forming a gas stream comprising unreacted ethylene, and a liquid/bottoms stream comprising the comonomer, optionally by passing the effluent to one or more downstream gas/liquid phase separators; and purifying at least a portion of said liquid/bottoms stream by removing at least one of solid polymer, catalyst, and undesirable olefins therefrom.

    摘要翻译： 本发明涉及从乙烯制备烯烃共聚单体的方法。 所产生的共聚单体可用于随后的方法中，例如聚乙烯聚合反应器。 生成的共聚单体可以任选地不经隔离或储存运输到聚乙烯聚合反应器中。 一种方法包括以下步骤：将乙烯和催化剂在溶剂/稀释剂中进料到一个或多个共聚单体合成反应器中; 在足以产生包含所需共聚单体的流出物的反应条件下使乙烯和催化剂反应; 形成包含未反应的乙烯的气流和包含共聚单体的液体/塔底物流，任选地通过使流出物流到一个或多个下游气/液相分离器; 并通过从其中除去固体聚合物，催化剂和不期望的烯烃中的至少一种来净化至少一部分所述液体/塔底物流。

    Process to produce low viscosity poly-alpha-olefins
    4.
    发明申请
    Process to produce low viscosity poly-alpha-olefins 有权
    生产低粘度聚-α-烯烃的方法

    公开(公告)号：US20070043248A1

    公开(公告)日：2007-02-22

    申请号：US11489313

    申请日：2006-07-19

    申请人： Margaret Wu ,  Catalina Coker ,  John Walzer ,  Peijun Jiang

    发明人： Margaret Wu ,  Catalina Coker ,  John Walzer ,  Peijun Jiang

    IPC分类号： C07C2/02

    CPC分类号： C07C11/02 ,  C07C2/02 ,  C07C2/34 ,  C07C5/05 ,  C08F4/65908 ,  C08F4/65912 ,  C08F4/65925 ,  C08F4/65927 ,  C08F10/14 ,  C08F110/14 ,  C08F210/04 ,  C08F210/14 ,  C10M107/10 ,  C10M143/08 ,  C10M2205/026 ,  C10M2205/0265 ,  C10M2205/028 ,  C10M2205/0285 ,  C10N2220/021 ,  C10N2220/022 ,  C10N2220/023 ,  C10N2220/024 ,  C10N2220/025 ,  C10N2220/026 ,  C10N2220/028 ,  C10N2220/033 ,  C10N2270/00 ,  C08F2500/03 ,  C08F2500/17 ,  C08F2500/20 ,  C08F2500/02

    摘要： This invention relates to a process to produce a polyalpha-olefin comprising: 1) contacting one or more alpha-olefin monomers having 3 to 24 carbon atoms with an unbridged substituted bis cyclopentadienyl transition metal compound having: 1) at least one non-isoolefin substitution on both cyclopentadientyl rings, or 2) at least two substitutions on at least one cyclopentadienyl ring, a non-coordinating anion activator, and optionally an alkyl-aluminum compound, where the molar ratio of transition metal compound to activator is 10:1 to 0.1:1, and if the alkyl aluminum compound is present then the molar ratio of alkyl aluminum compound to transition metal compound is 1:4 to 4000:1, under polymerization conditions wherein: i) hydrogen is present at a partial pressure of 0.1 to 50 psi, based upon the total pressure of the reactor or the concentration of the hydrogen is from 1 to 10,000 ppm or less by weight; ii) wherein the alpha-olefin monomer(s) having 3 to 24 carbon atoms are present at 10 volume % or more based upon the total volume of the catalyst/activator/alkylaluminum compound solutions, monomers, and any diluents or solvents present in the reaction; iii) the residence time of the reaction is at least 5 minutes; iv) the productivity of the process is at least 43,000 grams of total product per gram of transition metal compound; v) the process is continuous or semi-continuous, and vi) the temperature in the reaction zone does not rise by more than 10° C. during the reaction; and vii) ethylene is not present at more than 30 volume % of the monomers entering the reaction zone; and 2) obtaining a polyalpha-olefin (PAO), optionally hydrogenating the PAO, wherein the PAO comprises at least 50 mole % of a C3 to C24 alpha-olefin monomer, and wherein the PAO has a kinematic viscosity at 100° C. of 20 cSt or less.

    摘要翻译： 本发明涉及一种生产聚α-烯烃的方法，包括：1）使一个或多个具有3至24个碳原子的α-烯烃单体与未桥连的取代的双环戊二烯基过渡金属化合物接触，所述化合物具有：1）至少一种非异烯烃取代 在两个环戊二烯基环上，或2）至少一个环戊二烯基环上的至少两个取代基，非配位阴离子活化剂和任选的烷基铝化合物，其中过渡金属化合物与活化剂的摩尔比为10:1至0.1 ：1，如果存在烷基铝化合物，则在聚合条件下，烷基铝化合物与过渡金属化合物的摩尔比为1:4至4000:1，其中：i）氢分压为0.1至50 基于反应器的总压力或氢的浓度为1至10,000ppm或更低的重量比; ii）其中基于催化剂/活化剂/烷基铝化合物溶液，单体和存在于该溶剂中的任何稀释剂或溶剂的总体积，其中具有3至24个碳原子的α-烯烃单体以10体积％或更多存在 反应; iii）反应停留时间为至少5分钟; iv）该方法的生产率至少为每克过渡金属化合物总产品43,000克; v）该方法是连续或半连续的，和vi）反应区中的温度在反应期间不会上升超过10℃; 和vii）在超过30体积％的进入反应区的单体中不存在乙烯; 和2）获得聚α-烯烃（PAO），任选地氢化PAO，其中PAO包含至少50摩尔％的C 3至C 24α-烯烃单体，并且其中PAO在100℃下具有运动粘度 20 cSt以下。