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废铅酸蓄电池铅膏柠檬酸浸出动力学研究
引用本文:何东升,朱新锋,刘建文,高林霞,杨家宽. 废铅酸蓄电池铅膏柠檬酸浸出动力学研究[J]. 环境工程学报, 2012, 6(2): 623-626
作者姓名:何东升  朱新锋  刘建文  高林霞  杨家宽
作者单位:1. 华中科技大学环境科学与工程学院,武汉430074/武汉工程大学环境与城市建设学院,武汉430073
2. 华中科技大学环境科学与工程学院,武汉,430074
基金项目:国家自然科学基金资助项目(50804017);武汉工程大学科学研究基金资助项目(13105043)
摘    要:通过研究废铅酸蓄电池铅膏柠檬酸-柠檬酸钠浸出过程中PbSO4转化率随时间变化,考查了物料粒度、搅拌速度和浸出温度对转化率的影响,建立了反应的动力学方程,并计算了浸出反应表观活化能。结果表明,减小物料粒度、提高浸出温度和适当提高搅拌速度,均可提高硫酸铅转化率。浸出反应表观活化能为67.82 kJ/mol,浸出反应受化学反应步骤控制。

关 键 词:废铅酸蓄电池  铅膏  柠檬酸  动力学
收稿时间:2011-08-04

Study on kinetics of leaching lead paste in spent lead acid battery with citric acid solution
He Dongsheng,Zhu Xinfeng,Liu Jianwen,Gao Linxia and Yang Jiakuan. Study on kinetics of leaching lead paste in spent lead acid battery with citric acid solution[J]. Techniques and Equipment for Environmental Pollution Control, 2012, 6(2): 623-626
Authors:He Dongsheng  Zhu Xinfeng  Liu Jianwen  Gao Linxia  Yang Jiakuan
Affiliation:1(1.College of Environmental Science and Engineering,Huazhong University of Science & Technology,Wuhan 430074,China; 2.School of Environment and Civil Engineering,Wuhan Institute of Technology,Wuhan 430073,China)
Abstract:Effects of particle size,stirring speed and leaching temperature on PbSO4 conversion rate in the process of leaching lead paste in spent lead acid battery with citric acid-sodium citrate solution were investigated.Kinetic equations were presented,and the apparent activation energy was calculated.The results showed that reducing particle size,increasing leaching temperature or increasing stirring speed suitably could improve PbSO4 conversion rate.The kinetic apparent activation energy is 67.82 kJ/mol,and the leaching process is controlled by surface chemical reaction.
Keywords:spent lead acid battery  lead paste  citric acid  kinetics
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