Spent Catalyst : Vanadium, Molybdenum, Nickel, Copper, zinc, Tungsten.
Ammonium Metavanadate, Ferro Vanadium, Ferro Molybdenum, Calcium Molybdate, Molybdenum Oxide, Casting Powder, Synthetic Slag, Ferro Tungsten, Calcium Tungstate, Vanadium Pentoxide.