SPHERICAL SILICA PARTICLE, METHOD OF MANUFACTURING THE SAME, AND CATALYST CARRIER

摘要

PROBLEM TO BE SOLVED: To obtain spherical silica particle low in strength, large in specific surface area, free from collapse or crack on its surface and particularly most suitable as a catalyst carrier for olefin polymerization. SOLUTION: The spherical silica particle is an aggregate of a silica particle and has <=39.2×exp(-0.03×d) MPa tensile strength measured about a particle having (d)μm particle diameter, 1-200μm average article diameter and >=400 m2/g specific surface area.