El medio ambiente en la minería

SCHEMATIC COMPARISON OF THE VARIOUS TREATMENT PROCESSES - - Hematite Jarosite Goethite Recovery (%) Zn 98.2 96 96 Cd 89.0 85 85 Cu 98.2 90 90 Ag 98.2 60-65 85 Iron precipitate 01.. -Fe;P3 compound formed MFe 3_ " ( SO. ) 2 ( OH ) 6 o( -FeOOH Analysis: Fe (%) 50-60 25-30 40-45 Zn (%) 0.5-1.0 4-6 8 Moisture (%) 10 50 50 Amount (dry) (tt- 1 slab) 0.2 0.5 0.32 Zn loss (tt- 1 slab) 0.002 0.025 0.025 Power (kWh t- 1 slab): Leach + 93 167-224 100 residue treatment (incl.purif.) Steam (tt- 1 slab): Leach + 0.55 1.2 0.75 residue treatment (incl. purif. )