4 FeS2+ 11O2 ---> 8SO2+ 2Fe2O3
.......20 000/3...............40 000/3
SO2 + O2 ---> SO3
40 000/3.........40 000/3
SO3 + H2O ---> H2SO4
40 000/3.........40 000/3
FeS2 ---------------------------> 2 H2SO4
mFeS2 = 1 * 80% = 0,8 tấn = 800 000g
nFeS2 = 800 000/120 = 20 000/3 mol
mH2SO4 (lt) = 40 000/3 * 98 = 3 920 000/3 g
mH2SO4 (tt) = (3 920 000/3 * 95)/100 = 3 724 000/3 g
mdd = (3 724 000/3*100)/60 = 18 620 000/9 =2,069 tấn