Hydrometallurgical leaching and kinetic modeling of low-grade manganese ore with banana peel in sulfuric acid

作     者：Sajjad Ali Yaseen Iqbal Inamullah Khan Ansar Ullah Muhammad Sadiq Muhammad Fahad Khizar Hussain Shah Sajjad Ali;Yaseen Iqbal;Inamullah Khan;Ansar Ullah;Muhammad Sadiq;Muhammad Fahad;Khizar Hussain Shah

作者机构：Materials Research LaboratoryDepartment of PhysicsUniversity of Peshawar25120 PeshawarPakistan Department of Electrical and Computer EngineeringCOMSATS University IslamabadAbbottabad CampusUniversity Road 22060 AbbottabadPakistan Department of ChemistryCOMSATS University IslamabadAbbottabad CampusUniversity Road 22060 AbbottabadPakistan 

出 版 物：《International Journal of Minerals,Metallurgy and Materials》 (矿物冶金与材料学报（英文版）)

年 卷 期：2021年第28卷第2期

页      面：193-200页

核心收录：

学科分类：080602[工学-钢铁冶金] 08[工学] 0806[工学-冶金工程] 

主　　题：low-grade manganese ore glucose leaching kinetics activation energy 

摘      要：Manganese was leached from a low-grade manganese ore(LGMO)using banana peel as the reductant in a dilute sulfuric acid *** effects of banana peel amount,H2SO4 concentration,reaction temperature,and time on Mn leaching from the complex LGMO were studied.A leaching efficiency of~98%was achieved at a leaching time of 2 h,banana peel amount of 4 g,leaching temperature of 120°C,manganese ore amount of 5 g,and sulfuric acid concentration of 15vol%.The phase,microstructural,and chemical analyses of LGMO samples before and after the leaching process confirmed the successful leaching of ***,the leaching process followed the shrinking core model and the leaching rate was controlled by a surface chemical reaction(1−(1−x)^1/3=kt)mechanism with an apparent activation energy of 40.19 kJ·mol^−1.