A.Absorption of sulphur troixide by 98.5% sulphuric acid
B.Oxidation of sulphur trioxide
C.Oxidation of sulphur to sulphur dioxide
D.Thermal dissociation of iron pyrites
A.Absorption of sulphur troixide by 98.5% sulphuric acid
B.Oxidation of sulphur trioxide
C.Oxidation of sulphur to sulphur dioxide
D.Thermal dissociation of iron pyrites