Vanadium(V) oxide is produced when vanadium metal is heated with excess oxygen, but this product is contaminated with other, lower oxides. A more satisfactory laboratory preparation involves the decomposition of ammonium metavanadate at 500-550 °C: 2 NH4VO3 → V2O5 + 2 NH3 + H2O.
Why are vanadium V oxide pellets used during the production of sulfuric acid?
The catalyst, normally is vanadium(V) oxide on silica which is generally in the form of small pellets like hollow cylindrical pellet with promoter, is to promote the oxidation and conversion of SO2 to SO3 in a cylindrical vessel which ascts as a fixed bed reactor with for separate beds loaded with the vanadium oxide ...
Why is vanadium V oxide used in the contact process?
That includes the use of vanadium(V) oxide as a catalyst in the Contact Process, and converting between the various vanadium oxidation states. During the Contact Process for manufacturing sulphuric acid, sulphur dioxide has to be converted into sulphur trioxide.
