LIQUID SUSPENSION OF CERIUM OXIDE PARTICLES

摘要

The present invention relates to a suspension of cerium oxide particles in a liquid phase, in which said particles comprise secondary particles comprising primary particles, and a process for preparing said liquid suspension in which the cerium IV/total cerium molar ratio before precipitation is comprised between 1/10000 and 1/500000 and that the thermal treatment is being carried out under an inert atmosphere.

主权项

1. A suspension of cerium oxide particles in a liquid phase, wherein said particles comprise secondary particles comprising primary particles, and wherein:
the secondary particles have an average size D50 of between 105 and 1000 nm, with a standard deviation of between 10 and 50% of the value average size of the secondary particles; and the primary particles have an average size D50 of between 100 and 300 nm, with a standard deviation of between 10 and 30% of the average size of the primary particles.