Research of the Preparation of an Absorber Based on Zinc Oxide

Abstract

The results of studies on the preparation of the used catalyst GIAP-10 absorber are presented. Decomposition at a rate of 120% nitric acid 30%, temperature 95°C, leaching time 3 hours, before precipitation of zinc hydroxide carbonate from the resulting zinc nitrate solution with a precipitant solution with ammonium carbonate at pH medium (8.0-10.0), temperature 65 -70℃ and the time is 1 hour. The obtained zinc hydroxide carbonate was dried at a temperature of 120℃, 2 hours and calcined at 500℃, 5 hours until it was converted to zinc oxide. Preparation of a scavenger based on zinc oxide in the form of a granule with the use of various binder and additives and amounts. Studied the effect of different amounts of binding additives on physical and chemical parameters. With an increase in the amount of binding additives CuO from 5% to 10% and MgO 7%, the degree of increase in the bulk density from 0.95 g/cm3 to 1.02 g/cm3, the mechanical strength: the index of splitting strength increases from 0.37 kg/mm to 0.41 kg/mm and specific surface area from 93.1 m2/g to 97.8 m2/g.