Reactive zirconium oxide and its preparation

Details Reactive zirconium oxide and its preparation Reactive zirconium oxide and its preparation

1990-05-25

1992-09-22

Langel, Wayne

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group ivb metal

423 71, 423 85, 423608, C01G 2500

Patent

active

051495104

ABSTRACT:
A process for the preparation of improved zirconium oxides comprising A) providing a zirconium oxide which has been produced by thermal decomposition of zircon followed by chemical digestion of the resultant silicate phases, B) reacting the zirconium oxide at high temperature with an alkali metal hydroxide or carbonate so as to form an alkali metal zirconate, C) hydrolyzing the resultant alkali metal zirconate so as to produce a suspension of zirconium oxide hydrate in a concentrated solution of alkali metal hydroxide, D) separating the zirconium oxide hydrate from the concentrated solution and washing the zirconium oxide hydrate which has been isolated, and E) drying the zirconium oxide hydrate at a temperature in the range of from 110.degree. to 570.degree. C.

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