FeⅢ催化氧化SⅣ动力学研究  

RESEARCH ON KINETICS OF FeⅢ CATALYZED OXIDATION OF SⅣ

作　　者：杨夕[1] 张玉[1] 周集体[1] 王国栋[1] 

机构地区：[1]大连理工大学环境与生命学院工业生态与环境工程教育部重点实验室,大连116024

出　　处：《环境工程》2009年第S1期322-325,27,共5页Environmental Engineering

基　　金：辽宁省科学技术计划项目(社会发展攻关计划)(2007229004)

摘　　要：主要对FeⅢ催化氧化SⅣ的动力学进行了研究。结果表明:离子强度对反应速率影响不大;Fe3+溶液中存在少量Fe2+时即导致反应速率下降一半以上;随着溶液中Fe3+浓度的增大,反应速率迅速下降;温度的升高,反应速率变大,活化能Ea=6.73KJ/mol;在实验条件下适宜的pH值为2.0。Kinetics of FeⅢcatalyzed oxidation of SⅣ was studied by investigating the effect of ionic strength,concentration of Fe 2+,concentration of Fe 3+,temperature,pH on reaction rate.Little effect of ionic strength on reaction rate was observed.The reaction rate decreases quickly while a small amount of Fe 2+ exists in Fe 3+ solution.The reaction rate declined rapidly at higher Fe 3+ concentration.The reaction rate increases with the increasing of temperature,the activation energy is 6.73 KJ/mol.The appropriate pH value is 2.0 under certain conditions.

关 键 词：FeⅢ 液相催化氧化 SⅣ氧化动力学 

分 类 号：X701.3[环境科学与工程—环境工程] O643.1[理学—物理化学]