METHOD FOR REDUCING SHEETING DURING OLEFIN POLYMERIZATION

摘要

There is provided a method for reducing sheeting during polymerization of one or more olefins, including diolefins, in a fluidized bed reactor in the presence of a polymerization catalyst, optionally in the presence of an inert particulate material, which method comprises lowering the reactor bed temperature, optionally with the addition of a prostatic agent, by an amount sufficient to maintain the electrostatic levels at the site of potential sheet formation at levels which avoid sheeting without substantially altering the activity of said catalyst.