METHOD FOR PRODUCING MODIFIED SOLID TITANIUM CATALYST COMPONENT, METHOD FOR PRODUCING ETHYLENE-BASED POLYMER PARTICLE, AND ETHYLENE-BASED POLYMER PARTICLE

摘要

To provide a method for producing a modified solid titanium catalyst component in which an ethylene-based polymer particle having a suppressed aggregation and a high bulk density can easily be produced, and to provide a method for producing ethylene-based polymer particle.SOLUTION: Provided is a method for producing modified solid titanium catalyst component including a step of contacting a polar substance with a solid titanium catalyst component containing magnesium, halogen, titanium and an electron donor, and in which the amount of the polar substance used relative to 1 mole of titanium contained in the solid titanium catalyst component is 0.5 to 10 moles.SELECTED DRAWING: None