Process for transitioning between incompatible polymerization catalyst

Process for transitioning between incompatible polymerization catalyst

  • CN 1,157,000 A
  • Filed: 03/24/1995
  • Published: 08/13/1997
  • Est. Priority Date: 03/25/1994
  • Status: Abandoned Application
First Claim
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1. one kind converts the method for the polyreaction of utilizing second catalyst to by the polyreaction of utilizing first catalyst, and wherein said first and second catalyzer are inconsistent, and described method comprises the steps:

  • A) stop in reactor, to introduce first catalyzer;

    B) introduce a kind of irreversible catalyzer killer in reactor, the described dosage of strangling is greater than about 1 molar equivalent based on the total grammeatom of the metal of first catalyzer in the reactor;

    WithC) in reactor, introduce second catalyzer.

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