Simplified polyethylene catalyst system
    5.
    发明授权
    Simplified polyethylene catalyst system 失效
    简化聚乙烯催化剂体系

    公开(公告)号:US5070057A

    公开(公告)日:1991-12-03

    申请号:US502678

    申请日:1990-04-02

    IPC分类号: C08F4/60 C08F4/68 C08F10/00

    CPC分类号: C08F10/00

    摘要: An improved support vanadium catalyst, especially an improved Beran et al. catalyst system and ethylene polymerization process in which the improvement derives from fixing the promoter to a component of the catalyst composition such that it is a molecularly structural component of the catalyst and thus is not separately fed to the polymerization reaction, but instead is part of the catalyst composition fed to the reaction.

    摘要翻译: 改进的载体钒催化剂,特别是改进的Beran等 催化剂体系和乙烯聚合方法,其中改进来自于将催化剂固定到催化剂组合物的组分,使得其是催化剂的分子结构组分,因此不分别进料到聚合反应中,而是部分 催化剂组合物进料到反应中。

    Process for activation of titanium and vanadium catalysts useful in
ethylene polymerization

    公开(公告)号:US4670526A

    公开(公告)日:1987-06-02

    申请号:US833148

    申请日:1986-02-27

    CPC分类号: C08F10/00

    摘要: A process for activating a titanium or vanadium compound and producing polyethylene comprising (i) dissolving a divalent magnesium halide and a Lewis acid having the formula R.sub.m A1X.sub.n or R.sub.m BX.sub.n wherein R is an alkyl or aromatic radical, each radical having 1 to 12 carbon atoms and each R being alike or different; X is a halogen atom; m is an integer from 0 to 3; n is an integer from 0 to 3; and m+n equals 3, in an excess of electron donor compound selected from the group consisting of alkyl esters of alkyl and aromatic carboxylic acids and alkyl and cycloalkyl ethers, each compound having 2 to 12 carbon atoms, in such a manner that a magnesium halide/Lewis acid/electron donor complex is formed; (ii) separating the complex from excess electron donor compound; and (iii) introducing (a) the complex, the titanium or vanadium compound, and a hydrocarbyl aluminum compound and (b) ethylene into a reactor in such a manner that the titanium or vanadium compound is activated and polyethylene is produced.

    Process for activation of titanium and vanadium catalysts useful in
ethylene polymerization
    10.
    发明授权
    Process for activation of titanium and vanadium catalysts useful in ethylene polymerization 失效
    活化用于乙烯聚合的钛和钒催化剂的方法

    公开(公告)号:US4755495A

    公开(公告)日:1988-07-05

    申请号:US941363

    申请日:1986-12-15

    IPC分类号: C08F10/00 C08F4/64

    CPC分类号: C08F10/00

    摘要: A process for activating a titanium or vanadium compound and producing polyethylene comprising (i) dissolving a divalent magnesium halide and a Lewis acid having the formula R.sub.m A1X.sub.n or R.sub.m BX.sub.n wherein R is an alkyl or aromatic radical, each radical having 1 to 12 carbon atoms and each R being alike or different; X is a halogen atom; m is an integer from 0 to 3; n is an integer from 0 to 3; and m+n equals 3, in an excess of electron donor compound selected from the group consisting of alkyl esters of alkyl and aromatic carboxylic acids and alkyl and cycloalkyl ethers, each compound having 2 to 12 carbon atoms, in such a manner that a magnesium halide/Lewis acid/electron donor complex is formed; (ii) separating the complex from excess electron donor compound; and (iii) introducing (a) the complex, the titanium or vanadium compound, and a hydrocarbyl aluminum compound and (b) ethylene into a reactor in such a manner that the titanium or vanadium compound is activated and polyethylene is produced.

    摘要翻译: 一种用于活化钛或钒化合物并生产聚乙烯的方法,包括(i)溶解二价卤化镁和具有式RmA1Xn或RmBXn的路易斯酸,其中R是烷基或芳基,每个基团具有1至12个碳原子, R相同或不同; X是卤原子; m是0至3的整数; n为0〜3的整数。 并且m + n等于3,过量的选自烷基和芳族羧酸的烷基酯和烷基和环烷基醚的电子给体化合物,每个化合物具有2至12个碳原子,以使镁 形成卤化物/路易斯酸/电子给体络合物; (ii)将复合物与过量的电子给体化合物分离; 和(iii)将复合物,钛或钒化合物和烃基铝化合物和(b)乙烯以使得钛或钒化合物活化并且生产聚乙烯的方式引入反应器中。