method for monitoring the level of an ethylene polymerization catalyst slurry, and use of a time domain reflectometry technology

摘要

method for monitoring the level of an ethylene polymerization catalyst slurry. The present invention relates to a method for monitoring the level of an ethylene polymerization catalyst slurry in a slurry vessel (2), whereby said catalyst slurry is prepared by introducing a solid catalyst and a liquid diluent. said sludge vessel (2) and whereby upon sedimentation an interface (35) is formed between said diluent and the obtained catalyst slurry, characterized in that said interface (35) is monitored with reflectometry of time domain.