| 钴镍渣中锌的溶出动力学研究 |
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| 引用本文： | 李元高,曾孟详,王松森,张平民.钴镍渣中锌的溶出动力学研究[J].厦门理工学院学报,2008,16(2):36-40. |
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| 作者姓名： | 李元高 曾孟详 王松森 张平民 |
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| 作者单位： | 1. 厦门理工学院环境工程系,福建,厦门,361024
2. 中南大学化学化工学院,湖南,长沙,410083 |
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| 摘 要： | 基于硫酸选择性溶出钴镍渣中金属锌的“腐蚀微电池”作用本质，推导了其溶出反应的动力学方程．建立了钴镍渣中金属锌溶出反应的实验装置，获取了反应温度为15℃时溶出的氢气体积随时间变化的数据．以所建立的动力学方程结合实验数据进行计算，结果表明，硫酸选择性溶出钴镍渣中金属锌并生成氢气的反应，在室温15℃条件下具有一级反应的动力学特征，其表观反应速率常数k＊=0．5617min^-1.
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| 关 键 词： | 钴镍渣 锌 硫酸 动力学 速率常数 |
A Study on Leaching Kinetics of Zinc from Cobalt/Nickel Residue |
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| LI Yuan-gao,ZENG Meng-xiang,WANG Song-sen,ZHANG Ping-min.A Study on Leaching Kinetics of Zinc from Cobalt/Nickel Residue[J].Journal of Xiamen University of Technology,2008,16(2):36-40. |
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| Authors: | LI Yuan-gao ZENG Meng-xiang WANG Song-sen ZHANG Ping-min |
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| Institution: | LI Yuan-gao, ZENG Meng-xiang, WANG Song-sen, ZHANG Ping-min ( 1. Department of Environmental Engineering, Xiamen University of Technology, Xiamen 361024, China; 2. School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China) |
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| Abstract: | Based on the corrosion in micro-cell mechanism for the selective leaching of zinc from the cobait/nickel residue, the kinetics equations for the leaching reaction were proposed. An experimental apparatus was established for the study of the reaction, from which the amount of produced hydrogen as the reaction proceeds could be conveniently recorded. Using the obtained experimental results at 15℃, the calculations of the kinetics equations indicate that the leaching reaction is of the first order, and the apparent reaction rate constant is 0. 561 7 min^-1 . |
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| Keywords: | cobalt and nickel residue zinc sulfuric acid kinetics reaction rate constant |
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