PROCESS FOR THE PRODUCTION OF A POLYMER IN A GAS PHASE FLUIDISED BED REACTOR

摘要

The present invention relates to a method for the operation of a process for the production of a polymer by polymerisation of a monomer and an optional comonomer in a gas phase fluidised bed reactor during steady-state and non-steady-state conditions. In particular, the present invention relates to a process for the continuous production of a medium and/or high density ethylene (co-)polymer in a gas phase fluidised bed reactor comprising improved non-steady-state conditions.