Method for controlling a solution process for the polymerization of olefins
    2.
    发明授权
    Method for controlling a solution process for the polymerization of olefins 失效
    用于控制烯烃聚合的溶液方法的方法

    公开(公告)号:US07985812B2

    公开(公告)日:2011-07-26

    申请号:US12734406

    申请日:2008-10-20

    IPC分类号: C08F2/04 C08F210/16

    摘要: A method for controlling a solution process for the polymerisation of olefins is disclosed. The method is based on an algorithm that calculates predicted operating parameters of the process, including calculation of the extent of reaction (ξ), as a function of the solution density (ρ), and then calculation of the whole composition of the solution. The algorithm resolves a system of equations comprising the equation of state in the PC-SAFT form, the Lewis-Mayo equation for monomer incorporation into a copolymer, and the stoichiometry equation. Predicted parameters are compared to target parameters to detect possible deviations and implement corresponding compensation in the feed.

    摘要翻译: 公开了一种用于控制烯烃聚合的溶液方法的方法。 该方法基于计算过程的预测操作参数的算法,包括计算反应程度(&xgr),作为溶液密度(&rgr;)的函数,然后计算溶液的整体组成 。 该算法解决了包含PC-SAFT形式的状态方程,单体掺入共聚物的Lewis-Mayo方程式和化学计量方程式的方程组。 将预测参数与目标参数进行比较,以检测可能的偏差并在进料中实现相应的补偿。

    METHOD FOR CONTROLLING A SOLUTION PROCESS FOR THE POLYMERIZATION OF OLEFINS
    3.
    发明申请
    METHOD FOR CONTROLLING A SOLUTION PROCESS FOR THE POLYMERIZATION OF OLEFINS 失效
    用于控制烯烃聚合的溶液方法的方法

    公开(公告)号:US20100311921A1

    公开(公告)日:2010-12-09

    申请号:US12734406

    申请日:2008-10-20

    IPC分类号: C08F2/00

    摘要: A method for controlling a solution process for the polymerisation of olefins is disclosed. The method is based on an algorithm that calculates predicted operating parameters of the process, including calculation of the extent of reaction (ξ), as a function of the solution density (π), and then calculation of the whole composition of the solution. The algorithm resolves a system of equations comprising the equation of state in the PC-SAFT form, the Lewis-Mayo equation for monomer incorporation into a copolymer, and the stoichiometry equation. Predicted parameters are compared to target parameters to detect possible deviations and implement corresponding compensation in the feed.

    摘要翻译: 公开了一种用于控制烯烃聚合的溶液方法的方法。 该方法基于计算过程的预测操作参数的算法,包括计算反应程度(&xgr),作为溶液密度(&pgr)的函数,然后计算溶液的整体组成 。 该算法解决了包含PC-SAFT形式的状态方程,单体掺入共聚物的Lewis-Mayo方程式和化学计量方程式的方程组。 将预测参数与目标参数进行比较,以检测可能的偏差并在进料中实现相应的补偿。

    Liquid phase process for the polymerization of α-olefins
    4.
    发明授权
    Liquid phase process for the polymerization of α-olefins 失效
    用于α-烯烃聚合的液相方法

    公开(公告)号:US07160964B2

    公开(公告)日:2007-01-09

    申请号:US10518885

    申请日:2003-06-17

    IPC分类号: C08F4/44

    摘要: A liquid-phase process for polymerizing α-olefins of the formula CH2═CHR, where R is H or an alkyl radical C1–C6, to produce a polymer that is soluble in the reaction medium, comprising the steps of: a) continuously polymerizing in liquid phase the α-olefin in the presence of a catalyst system based on a transition metal compound; b) continuously withdrawing from step a) a solution of polymer in the liquid reaction medium; c) mixing in one or more mixing stages said solution of polymer in the reaction medium with an organic deactivator having: at least a hydroxy group, a boiling point higher than 150° C., and a ratio between the molecular weight (MW) and the number of hydroxy groups (OH) comprised between 20 and 100.

    摘要翻译: 用于聚合式CH 2 -CHR的α-烯烃的液相方法,其中R是H或烷基C1-C6,以产生可溶于反应介质的聚合物,包括 步骤:a)在基于过渡金属化合物的催化剂体系的存在下,在液相中连续聚合α-烯烃; b)连续地从步骤a)中取出聚合物在液体反应介质中的溶液; c)在一个或多个混合阶段将所述聚合物在反应介质中的溶液与有机失活剂混合,所述有机失活剂具有至少羟基,沸点高于150℃,分子量(MW)和 羟基(OH)的数目在20和100之间。