The method of obtaining a catalyst for the oxidation of carbon (II) oxide from alumina waste of production and modifier of copper (II) oxide, in which activation of waste is carried out of alumina production with hydrochloric acid, neutralization of waste with ammonia and the following
by adding the precursor of the copper nitrate (II) modifier, converting it into hydroxide form by adding an ammonia solution with constant stirring followed by ultrasonic and thermal treatments at a temperature of 400 ºС suspension containing copper (II) oxide modifier, to obtain a ready-made solid catalyst, according to useful model, the content of the modifier in the catalyst is 15 ± 0.01% by mass, and the use of such a catalyst provides oxidation of carbon (II) oxide from 99.5 to 100.0%.

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