TY - JOUR
T1 - Studi Pelindian Mangan secara Reduksi dengan Menggunakan Larutan Asam Sulfat
AU - Royani, Ahmad
AU - Subagja, Rudi
AU - Manaf, Azwar
PY - 2017
Y1 - 2017
N2 - The leaching of manganese from manganese dioxide ores in sulfuric acid solution was investigated. The effects of agitation, sulfuric acid concentration and solid/liquid mass ratio on the leaching efficiency of manganese were studied. In this study, manganese dioxide ores were treated by reduction roasting using charcoal as a reductant at 700 oC for 120 min. Then, roasted samples were subjected to extract manganese by sulfuric acid leaching. in each leaching test, 75 g of sample was put and leached in a glass reactor with 750 mL sulfuric acid solution. At the end of each leaching experiment, the slurry was filtered and filtrate was analyzed by Atomic Absorption Spectrometer. The experimental results indicated that the leaching rate increases with the increases of the agitation, sulfuric acid concentration and with the decreases of solid/liquid mass ratio. The optimal condition for leaching manganese from manganese dioxide ores was determined as the agitation of 400 rpm and sulfuric acid concentration of 12% for 180 min at 75 oC. Under the optimal condition, the leaching efficiency of manganese can reach 84.61%.
AB - The leaching of manganese from manganese dioxide ores in sulfuric acid solution was investigated. The effects of agitation, sulfuric acid concentration and solid/liquid mass ratio on the leaching efficiency of manganese were studied. In this study, manganese dioxide ores were treated by reduction roasting using charcoal as a reductant at 700 oC for 120 min. Then, roasted samples were subjected to extract manganese by sulfuric acid leaching. in each leaching test, 75 g of sample was put and leached in a glass reactor with 750 mL sulfuric acid solution. At the end of each leaching experiment, the slurry was filtered and filtrate was analyzed by Atomic Absorption Spectrometer. The experimental results indicated that the leaching rate increases with the increases of the agitation, sulfuric acid concentration and with the decreases of solid/liquid mass ratio. The optimal condition for leaching manganese from manganese dioxide ores was determined as the agitation of 400 rpm and sulfuric acid concentration of 12% for 180 min at 75 oC. Under the optimal condition, the leaching efficiency of manganese can reach 84.61%.
UR - http://ejournal.kemenperin.go.id/jrti/article/view/1724
U2 - 10.26578/jrti.v11i1.1724
DO - 10.26578/jrti.v11i1.1724
M3 - Article
SN - 1978-6891
VL - 11
SP - 1
EP - 9
JO - Jurnal Riset Teknologi Industri
JF - Jurnal Riset Teknologi Industri
IS - 1
ER -