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Catalyst activation process

  • US 9,034,057 B2
  • Filed: 11/29/2011
  • Issued: 05/19/2015
  • Est. Priority Date: 11/30/2010
  • Status: Active Grant
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1. A process for activating a batch of polymerisation catalyst which comprises fluidising the batch of polymerisation catalyst in a fluidisation zone of an activator vessel, where the batch size is such that a settled bed of the catalyst in the activator vessel has a bulk volume of greater than 1.5 m3 and a depth between 1.8 and 3 m.

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