Leaching of manganese ores using corncob as reductant in H2SO4 solution

• Autorzy: Ali S. , Iqbal Y. , Farooq U. , Ahmad S.

Identyfikatory

DOI

10.5277/ppmp160105

• Języki publikacji: EN

Abstrakty

EN

In this study, corncob was used as reductant for sulfuric acid leaching of manganese ore from Daweezi, Upper Mohmand Agency, Pakistan. X-ray diffraction of representative powdered samples revealed the presence of manganese silicate MnSiO(SiO4), calcite (CaCO3), and -quartz (SiO2). X-ray diffraction and energy dispersive spectroscopy analyses indicated that the examined manganese ore was siliceous in nature. Three process parameters were investigated in the present study including the particle size of the ore, leaching temperature, and amount of corncob. Manganese extraction of 92.48 wt% was achieved for a leaching time of 60 min at 90 oC using 1.9 mol/dm3 H2SO4 concentration and 4 g of corncob. The present results demonstrated that corncob is a low cost, renewable, and non-hazardous reducing agent for manganese leaching under mild acid conditions in comparison to the other available reagents.

Słowa kluczowe

EN

siliceous manganese ore; characterization; leaching; corncob; H2SO4

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Physicochemical Problems of Mineral Processing
• Rocznik: 2016
• Tom: Vol. 52, iss. 1
• Strony: 56--65
• Opis fizyczny: Bibliogr. 14 poz., rys., tab.

Twórcy

autor

Ali S.

• Materials Research Laboratory, Department of Physics, University of Peshawar, Pakistan, Post code 25120 Pakistan

autor

Iqbal Y.

• Materials Research Laboratory, Department of Physics, University of Peshawar, Pakistan, Post code 25120 Pakistan

autor

Farooq U.

• Materials Research Laboratory, Department of Physics, University of Peshawar, Pakistan, Post code 25120 Pakistan

autor

Ahmad S.

• Materials Research Laboratory, Department of Physics, University of Peshawar, Pakistan, Post code 25120 Pakistan

Bibliografia

• CHENG, Z., ZHU, G., ZHAO, Y., 2009, Study in reduction–roast leaching manganese from low-grade manganese dioxide ores using cornstalk as reductant, Hydrometallurgy, 96, 176-179.
• CHAO, X., LONGJUN, X., TIEFENG, P., KUN, C., JING, Z., 2013, Leaching process and kinetics of manganese in low- grade manganese ore, Chinese Journal of Geochemistry, 32, 222-226.
• HARIPRASAD, D., DASH, B., GHOSH, M.K., ANAND, S., 2007, Leaching of manganese ores using sawdust as a reductant, Minerals Engineering, 20, 1293-1295.
• HARIPRASAD, D., DASH, B., GHOSH, M.K., ANAND, S., 2009, Mn recovery from medium grade ore using a waste cellulosic reductant, Indian Journal of Chemical Technology, 16, 322-327.
• HAIFENG, S., HUAIKUN, L., FAN, W., XIAOYAN, L., YANXUAN, W., 2010, Kinetics of reductive leaching of low-grade pyrolusite with molasses alcohol wastewater in H2SO4, Chinese Journal of Chemical engineering, 18(5), 730-735.
• LASHEEN, T.A., EL-HAZEK, M.N., HELAL, A.S., EL-NAGAR, W., 2009, Recovery of manganese using molasses as reductant in nitric acid solution, International Journal of Mineral Processing, 92, 109-114.
• MACKENZAI, W.S., GUILFORD, C., 1980, Atlas of Rock-forming Minerals in Thin Sections, Longman Scientific & Technical, 89-90.
• MIAHA, P.P., MOHAPATARA, B.K., MAHANTA, K., 2009, Upgradation of low-grade siliceous manganese ore from Bonai-Keonjhar belt, Orissa, Indian Journal. Minerals and Materials Characterization and Engineering, 8(1), 47-56.
• MEHDILO, A., IRANNAJAD, M., HOJJATI-RAD, M.R., 2013, Characterization and beneficiation of Iranian low grade manganese ore, Physicochemical Problems of Mineral Processing, 49(2), 725-741.
• PAGNANELLI, F., FURLANI, G., VALENTINI, P., VEGLIO, F., TORO, L., 2004, Leaching of low-grade manganese ores by using nitric acid and glucose: optimization of the operating conditions, Hydrometallurgy, 75, 157-167.
• SU, H., WEN, Y., WANG, F., SUN, Y., TONG, Z., 2008, Reductive leaching of manganese from low-grade manganese ore in H2SO4 using cane molasses as reductant, Hydrometallurgy, 93,136-139.
• TIAN, X., WEN, X., YANG, C., LIANG, Y., PI, Z., WANG, Y., 2010, Reductive leaching of manganese from low-grade manganese dioxide ores using corncob as reductant in sulfuric acid solution, Hydrometallurgy, 100, 157-160.
• ZHANG, H., ZHU, G., YAN, H., LI, T., ZHAO, Y., 2013, The mechanism on biomass reduction of low-grade manganese dioxide ore, The Minerals, Metals and Materials Society and ASM International.
• ZHANG, H., ZHU, G., YAN, H., ZHAO, Y., LI, T., FENG, X., 2013, Reduction of low-grade manganese dioxide ore pellets by biomass wheat stalk, Acta Metallurgica Sinica, 26 (2), 167-172.

Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.