ZIRCONIUM ACID HYDROXIDE Russian patent published in 2021 - IPC C01G25/00 C01G25/02 C01G25/06 C01B25/37 C01B33/00 C01F7/00 C01G19/00 C01G33/00 C01G39/00 B01J21/06 B01J23/14 B01J23/16 B01J35/00 

FIELD: chemistry.

SUBSTANCE: invention can be used in the manufacture of catalysts and sorbents. Disclosed is a zirconium hydroxide including, in terms of oxide, up to 30 wt%. of a dopant containing silicon, sulfate or tungsten, and having acid sites, while the specified zirconium hydroxide has more Lewis acid sites than Bronsted acid sites. The method for producing zirconium hydroxide includes the stages at which basic zirconium carbonate is dissolved in an aqueous solution of nitric acid, a complexing agent is added to the resulting solution or sol, and the said complexing agent is mandelic acid. Then the resulting solution or sol is heated, a sulfating agent, a base, an alloying additive containing silicon, sulfate or tungsten are added. Zirconium oxide, a method for its production as well as a product for use in catalysis, a binder, a coating and a sorbent, including a zirconium hydroxide or a zirconium oxide, are disclosed.

EFFECT: invention improves thermal stability of a product intended for use in catalysis such as a catalyst, catalyst support, catalyst precursor.

33 cl, 13 dwg, 7 tbl, 12 ex