Studies on the dissolution of hematite in acidic oxalate solutions have shown that there is a strong relationship between dissolution rates and ferrous ion generation in the solution. The effects of temperature, pH of the solution, oxalate and ferrous ions concentration on the dissolution of hematite...
D. Panias, Dissolution of hematite in acidic oxalate solutions: the effect of ferrous ions addition, Hydrometallurgy 43 (1996) 219-230.Panias, D.; Taxiarchou, M.; Douni, I.; Paspaliaris, I.; Kontopoulos, A., Dissolution of hematite in acidic oxalate solutions: The effect of ferrous ...
The ferrous oxalate, in the form of dihydrate (FeC2O4·2H2O), was produced by the acidic dissolution of ferrous ammonium sulfate (Fe(NH4)2(SO4)2) in an aqueous solution of oxalic acid, and then precipitated by nucleation and particle growth from supersaturated solution. The effect of the...