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Superfine Dispersing And Grinding Ceria Stabilized Zirconia Bead

An object of the present invention is to provide a a process to grind at least one mineral material in the presence of ceria ceo 2 containing zirconium oxide grinding beads having a specific ceria content of between 14 and 20 by weight relative to the total weight of said bead, preferably of between 15 and 18 , and most preferably of approximately 16 , and a specific average grain.