Process for manufacturing fine zirconium oxide powder

Details Process for manufacturing fine zirconium oxide powder Process for manufacturing fine zirconium oxide powder

1987-09-25

1991-01-15

Andrews, Melvyn J.

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

C01G 2502

Patent

active

049852299

ABSTRACT:
A process for manufacturing fine zirconium oxide powder comprises adding a hydroxide of at least one metal selected from calcium, magnesium, yttrium and a lanthanide series element to a zirconia sol, which is dehydrated, dried and calcined. A zirconia sol prepared by hydrolyzing under heating an aqueous solution containing a zirconium salt, zirconium hydroxide or zirconia hydrate and then filtering the hydrolized aqueous solution through a ultra-filtration membrane is preferably used.

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