Grinding media consisting essentially of sintered tio₂ particles

摘要

This invention relates to methods of preparing grinding media consisting essentially of sintered titanium dioxide (TiO2) particles. The method involves preparing base TiO2 particles, coating the base TiO2 particles with at least one hydrous oxide, compressing the TiO2 particles, and granulating the TiO2 particles to form TiO2 particles having substantially rounded edges. The invention further encompasses the resulting grinding media prepared by such methods and to methods of using such grinding media in media-milling particulate material such as titanium dioxide pigments.