Przemysl Chemiczny, Vol.92, No.2, 260-264, 2013
Effect of support regeneration and active phase composition on activity of the vanadium catalysts
Spent V2O5 catalysts for SO2-to-SO3 oxidn. were leached with 15% KOH soln., dried at 120 degrees C or calcd. at 400 degrees C and used for prodn. of fresh V catalysts. The decrease in fresh catalyst activity (as compared with catalysts supported on fresh SiO2) was lower for the calcd. SiO2 supports than for the dried ones.