STUDY OF EFFECTIVE EXTRACTION OF VANADIUM OXIDE FROM SPENT PETROCHEMICAL CATALYSTS BY LEACHING METHOD

Abstract

The process of acid, alkaline and soda leaching of spent petrochemical catalysts to produce vanadium oxide has been studied. The most effective reagent, its consumption, leaching duration and pulp temperature were chosen according to the results of the experiments. 80% extraction of vanadium oxide in the solution was achieved by using sodium hydroxide solution (200 g / l) as a reagent, solid-liquid phase ratio T:L = 1:3, pulp temperature 100 °С, process duration of about 3 hours.