用DOWEX MSA-1阴离子交换树脂从氯化物溶液中吸附Zn(Ⅱ)试验研究  

Thermodynamics and Kinetics of Adsorption of Zn(Ⅱ) from Chloride Solution Using DOWEX MSA-1 Anion Exchange Resin

作　　者：陈哲 谈定生[1,2] 李启文 邵庆阳 王俊杰 张利凡 谢昀映 邹秀晶[1,2] CHEN Zhe;TAN Dingsheng;LI Qiwen;SHAO Qingyang;WANG Junjie;ZHANG Lifan;XIE Yunying;ZOU Xiujing(School of Materials Science and Engineering,Shanghai University,Shanghai 200444,China;State Key Laboratory of Advanced Special Steel,Shanghai University,Shanghai 200444,China;Luoyang Luanchuan Molybdenum Group Tungsten Co.,Ltd.,Luanchuan 471500,China)

机构地区：[1]上海大学材料科学与工程学院,上海200444 [2]上海大学省部共建高品质特殊钢冶金与制备国家重点实验室,上海200444 [3]洛阳栾川钼业集团钨业有限公司,河南栾川471500

出　　处：《湿法冶金》2023年第1期30-36,共7页Hydrometallurgy of China

摘　　要：研究了用DOWEX MSA-1强碱性阴离子交换树脂从氯化物溶液中吸附Zn(Ⅱ),分析了吸附过程热力学和动力学。结果表明:树脂对Zn(Ⅱ)的吸附量随溶液中氯离子质量浓度增大而提高,吸附平衡符合Redlich-Peterson模型;吸附反应过程中吸热,反应可自发进行;准二级动力学模型可以较好地反映吸附动力学过程,颗粒扩散控制吸附速率。The adsorption of Zn(Ⅱ) using DOWEX MSA-1 strong basic anion exchange resin from chloride solution was studied.The thermodynamics and kinetics of adsorption process were analyzed.The results show that adsorption capacity of Zn(Ⅱ) increases with increasing of chloride ion mass concentration, and adsorption equilibrium data obeyes the Redlich-Peterson model.The process of adsorption reaction endothermic and the reaction can spontaneous.The pseudo-second-order kinetic model can reflect the kinetic process.The rate-controlling step is intra-particle diffusion.

关 键 词：离子交换 阴离子交换树脂 Zn(Ⅱ) 吸附 热力学 动力学 

分 类 号：TQ424[化学工程] O647.3[理学—物理化学]