高氟碘溶液絮凝吸附脱氟的动力学研究  

Kinetic Study on Flocculent Adsorption of F^-in High Content Iodine and Fluorine Solution for Defluorination

作　　者：陈肖虎[1] 杨善志[1] 刘福源[1] 查少华[1] 

机构地区：[1]贵州大学材料科学与冶金工程学院,贵州贵阳550003

出　　处：《过程工程学报》2008年第S1期247-250,共4页The Chinese Journal of Process Engineering

摘　　要：对絮凝净化富碘吸收液中氟吸附动力学过程进行了研究.实验结果表明,复合Al(OH)_3胶体对碘溶液中6.00×10^(-4)～7.50×10^(-4)浓度的氟离子吸附平衡满足Freundlich方程,实验给出了F^-最大吸附量及吸附剂最佳用量.吸附分快慢反应2个过程:(1)在前3h内复合Al(OH)_3胶体对氟的吸附量占整个过程的70%～90%;(2)慢反应在3～24h内近于完成.Modifide Freundlich方程能较好的关联快速吸附阶段,First-order kinetics能很好地描叙慢速反应阶段.The adsorption kinetics of defluoridation in high content iodine adsorption solution by flocculent purification was experimentally studied.The results showed that the adsorption equilibrium of F^-by aluminum hydroxide colloidal complex in the range of 6.00×10^(-4)～7.50×10^(-4)was associated well with Freundlich equation.The maximum adsorbing capacity of F^-and the best adsorbent amount were given.The process for aluminum hydroxide colloidal complex to adsorb F^-can be divided into two stages:(1)fast adsorpt...

关 键 词：除氟 吸附动力学 复合Al(OH)_3胶体 

分 类 号：O647.31[理学—物理化学]