No abstract

Ind. Eng. Chem. Process Des. Dev. 1986, 25, 317-321 317 m ' = concentration of chemical species i d = normality of titrant R* = ratio of ferric to ferrous rFeS2 = rate of oxidation, pmol/s/kg t = time required for pyrite oxidation, s v = rate of titrant addition, L/s V , = initial volume of leaching solution, L x = amount of ferrous ion oxidized to ferric ion to maintain constant R* Greek Letters OFe(II) = fraction of active site adsorbing Fe(I1) ions OF~(III) = fraction of active site adsorbing Fe(II1) ions 6Fe2+ = fraction of active site adsorbing Fe2+ ions $Fe3+ = fraction of active site adsorbing Fe3+ ions OFeHSO42+ = fraction of active site adsorbing FeHSOd2+ ions y j = activity coefficient of chemical species