Catalyst metering device

摘要

The invention relates to a catalyst metering device with a valve formed of an iron-based alloy steel hardened to a Rockwell hardness C of at least 60. The device can be used for metering of a catalyst for an ethylene polymerization reaction. The invention further relates to ethylene polymerization wherein the catalyst is metered in a catalyst metering device with a iron-based alloy steel hardened valve, as well as to a ethylene polymerization reactor comprising such a catalyst metering device.

主权项

1. A catalyst metering device comprising:
a body having an inlet, an outlet, and a rotatable catalyst metering valve; wherein the rotatable catalyst metering valve comprises a catalyst metering chamber operably connected to the inlet and the outlet; and a piston arranged within the catalyst metering chamber.