Thermal treatment of catalyst material for polyolefin production involves discontinuous activation and/or calcination by heating, tempering and then cooling outside the reactor, with a constant reactor temperature

摘要

A process for the discontinuous thermal treatment of catalyst material by (a) introducing it into a reactor, (b) heating, (c) tempering at reactor temperature (T), (d) discharging and (e) cooling, in which T is kept constant in stages (a) to (e), (b) is performed during and/or after (a), (e) is performed during and/or after (d) and (c) is performed after (b) and before (e).