METHOD OF PRODUCING ZIRCONIUM OXIDE HAVING TETRAGONAL MODIFICATION FOR PRODUCING CATALYSTS Russian patent published in 2010 - IPC C01G25/02 B01J37/03 B01J41/08 B01J21/06 

FIELD: chemistry.

SUBSTANCE: invention relates to methods of producing zirconium oxide used in chemistry for producing catalysts. The invention describes a method of producing zirconium (IV) oxide for producing catalysts involving preparation of an initial reaction aqueous solution of a zirconium (IV) salt, precipitation of zirconium hydroxide from the solution, separation of the obtained zirconium hydroxide precipitate from the aqueous solution, drying and calcination of the precipitate at 600°C. The method is characterised by that precipitation is carried out using an anionite in OH form.

EFFECT: obtaining catalytically active zirconium (IV) oxide ZrO₂ having tetragonal modification, which does not contain impurity anions (chloride ions) which avoids the need for prolonged washing of the obtained precipitate.

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