Влияние азотной кислоты на состав продуктов взаимодействия с отработанными кобальтсодержащими катализаторами

Abstract

Combined process of chemisorption of nitrogen oxides NO and NO2 from their mixtures with air and extraction of metals from the catalyst in the aqueous solution in contact with the spent catalyst and being simultaneously chemisorbents and extractant is the basis of resource utilization technology developed spent catalysts and exhaust nitrous gases production of catalysts. Study results on the effect of concentration of nitric acid in the product composition of its interaction with the metallic cobalt in the temperature range 20 – 25 °С were presented. Intervals of concentrations of nitric acid, in which as byproducts of the interaction mainly formed ammonium nitrate, nitrogen and nitrogen oxides (I, II, IV) were installed.