Leaching kinetics of molybdenum from Ni-Mo ore in sulfuric acid solution with sodium peroxodisulfate as oxidant

被引：0

作者：

刘志雄 ^{[1
]}

尹周澜 ^{[2
]}

陈义光 ^{[3
]}

熊利芝 ^{[3
]}

机构：

[1] College of Physics and Mechanical & Electrical Engineering, Jishou University

[2] School of Chemistry and Chemical Engineering, Central South University

[3] College of Biology and Environmental Sciences, Jishou University

来源：

Journal of Central South University | 2015年 / 22卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Ni-Mo ore; leaching kinetics; molybdenum; oxidant; sodium peroxodisulfate;

D O I：

暂无

中图分类号：

O643.12 [化学反应的机理和动力学]; TF841.2 [钼];

学科分类号：

070304 ; 080603 ; 081704 ;

摘要：

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 k J/mol and the leaching kinetics equation of molybdenum from Ni-Mo ore is expressed as1-(1-a)1/3=3405.7exp[-41030.0/(RT)]t.

引用

页码：874 / 879

页数：6

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