Abstract
The leaching kinetics of molybdenum from Ni-Mo ore in sulfuric acid solution with sodium peroxodisulfate was studied. The effects including leaching temperature, reaction time, particle size, stirring speed, and concentrations of sulfuric acid and sodium peroxodisulfate were investigated. The leaching process of molybdenum from Ni-Mo ore is controlled by the chemical reaction through the solid layer across the unreacted shrinking core. The apparent activation energy of the leaching of molybdenum is calculated to be 41.0 kJ/mol and the leaching kinetics equation of molybdenum from Ni-Mo ore is expressed as 1-(1-a)1/3=3405.7exp[−41030.0/(RT)]t.
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Foundation item: Project(51364009) supported by the National Natural Science Foundation of China; Project(JSU071302) supported by the Construct Program of the Key Discipline in Hunan Province, China; Project(2015JJ2115) supported by the Natural Science Foundation of Hunan Province, China
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Liu, Zx., Yin, Zl., Chen, Yg. et al. Leaching kinetics of molybdenum from Ni-Mo ore in sulfuric acid solution with sodium peroxodisulfate as oxidant. J. Cent. South Univ. 22, 874–879 (2015). https://doi.org/10.1007/s11771-015-2596-5
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DOI: https://doi.org/10.1007/s11771-015-2596-5