The kinetics of the dissolution of monoclinic pyrrhotite in aqueous acidic solutions

摘要

Using the rotating disc method, the rates of dissolution of natural monoclinic pyrrhotite, FeS1.14, in oxygen-free aqueous solutionsS(H+=0.1, Na+=0.9, ClO4−=1.0 mol kg−1) were determined. In the temperature range 40–90 °C the dissolution reaction occurs under kinetic control; the activation energy being 14±1 kcal mol−1(50±5