1. THE INFLUENCE OF THE OXIDIZING AGENTS ON THE KINETICS OF COPPER LEACHING FROM CHALCOPYRITE CONCENTRATE WITH SULPHURIC ACID. Authors: CAMELIA LUMINITA VARGA, IOAN BÂLDEA, ANCA MIHALY COZMUŢĂ.2. STUDY ABOUT THE AFFINITY FOR HEAVY METALS OF SPONTANEOUS VEGETATION THAT GROWS UP ON THE WALLS OF THE TAILING PONDS. Authors: LEONARD MIHALY COZMUŢA, ANCA MIHALY COZMUŢĂ, CAMELIA LUMINITA VARGA, ANCA PETER.3. THE INFLUENCE OF THE OXIDIZING AGENTS ON THE KINETICS OF COPPER LEACHING FROM CHALCOPYRITE CONCENTRATE WITH SULPHURIC ACID. Authors: CAMELIA LUMINITA VARGA, IOAN BÂLDEA, ANCA MIHALY COZMUŢĂ.4. COPPER SOLVENT EXTRACTION FROM ACIDS SOLUTIONS OBTAINED BY ORES SOLUBILISATION. Authors: CAMELIA LUMINITA VARGA.5. LEACHING OF CHALCOPYRITE CONCENTRATE WITH SULPHURIC ACID IN ABSENCE AND PRESENCE OF OXIDIZING AGENTS. Authors: CAMELIA LUMINITA VARGA, LIVIU ONICIU.6. LEACHING OF LOW-GRADE CHALCOCITE-COVELLITE-CHALCOPYRITE ORE WITH SULPHURIC ACID. THE INFLUENCE OF THE OXIDIZING AGENTS ON THE KINETICS OF COPPER LEACHING. Authors: CAMELIA LUMINITA VARGA, LIVIU ONICIU, IOAN BÂLDEA.