AMMONIA OXIDATION CATALYST FOR NITRIC ACID PRODUCTION BASED ON DOPED YTTRIUM ORTHOCOBALTATE Russian patent published in 2017 - IPC B01J23/83 C01B21/26 

Abstract RU 2623227 C2

FIELD: chemistry.

SUBSTANCE: invention relates to a catalytically active catalyst component, to a process for ammonia oxidation in the Ostwald process in the presence of this catalytically active component and its application for selective ammonia oxidation. The ammonia oxidation catalyst with a refractory carrier phase and a single-phase catalytically active oxide comprises stable, single phase oxides based on oxide systems doped with yttrium orthocobaltate with the general formula YCo1-xMxO3, where X is greater than 0 and less than 1, and M is iron or titanium, or the single-phase oxide has the general formula YCo1-xMnxO3, where X is greater than 0 and less than 0.5. Method for ammonia oxidation in the Ostwald process includes conversion of a gas mixture containing ammonia and oxygen in the presence of a catalyst.

EFFECT: catalysts are more stable and have improved selectivity.

9 cl, 2 tbl

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RU 2 623 227 C2

Authors

Valler David

Grenvold Mariann Sebyu

Sali Nibal

Dates

2017-06-23Published

2014-01-24Filed