Production of broad molecular weight polyethylene

Production of broad molecular weight polyethylene

  • CN 1,741,848 A
  • Filed: 12/05/2003
  • Published: 03/01/2006
  • Est. Priority Date: 12/27/2002
  • Status: Active Grant
First Claim
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1. , the chrome catalysts that supports, it comprises:

  • Chromium oxide,The carrier that contains silica, described silica are selected from has (a) about 1.1 to about 1.8cm 3The pore volume of/g and about 245 to about 375m 2The surface area of/g, (b) about 2.4 to about 3.7cm 3The pore volume of/g and about 410 to about 620m 2The surface area of/g and (c) about 0.9 to about 1.4cm 3The pore volume of/g and about 390 to about 590m 2The silica of the surface area of/g;

    With Organo-aluminum compound;

    The wherein said chrome catalysts that supports activates down to about 860 ℃

    about 400.

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