The oligomerization of the olefinic compounds of the formation minimizing of polymkeric substance

The oligomerization of the olefinic compounds of the formation minimizing of polymkeric substance

  • CN 102,725,251 B
  • Filed: 10/13/2010
  • Issued: 11/25/2015
  • Est. Priority Date: 10/19/2009
  • Status: Active Grant
First Claim
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1. , for being carried out the method for production oligomerization product by the oligomerization of at least one olefinic compounds, the method comprises:

  • A) by by the following low polymerization catalyst providing activation with combined in any order,I) chromium source;

    Ii) coordination compound of formula I(R 1) mX 1(y)X 2(R 2) n........I Wherein;

    X 1and X 2the atom being selected from nitrogen, phosphorus, arsenic, antimony, bismuth, oxygen, sulphur and selenium independently, or by the described atom of S, Se, N or O oxidation, wherein X 1and/or X 2valency allow this oxidation;

    Y is X 1and X 2between linking group;

    M and n is independently the integer of 0,1 or larger;

    AndR 1and R 2independently hydrogen, alkyl, organic heteroatom group, as m >

    1, R 1identical or different, and as n >

    1, R 2identical or different;

    Iii) combination of catalyst activator or catalyst activator;

    B) dialkyl group zinc is provided;

    WithC) described at least one olefinic compounds is contacted with following composition, described composition comprises low polymerization catalyst and the dialkyl group zinc of activation, described dialkyl group zinc is present in an amount sufficient, makes the molar weight of zinc in described dialkyl group zinc be 1-10000 with the ratio of the molar weight of chromium in chromium source.

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