| abstract |
Zirconia sols are prepared by hydrolyzing zirconium alkoxides by aqueous hydrogen peroxide in the presence of an acid, evaporating the hydrolysates to dryness, and redispersing the dried hydrolysates in an organic solvent and the sols can be used for the preparation of zirconia forms in a desired shape satisfactorily on a commercial scale with removal of as much residual carbon as possible and without foaming in the gelation and molding steps. |