湿法炼锌过程中应用铈基除氟剂的研究  

Study on the Application of Cerium Based Fluoride Remover in the Hydrometallurgical Zinc Process

作　　者：马江龙 李铭熙 齐亚辉 陈振宇 白朝力格尔 张志强 田昂 Ma Jianglong;Li Mingxi;Qi Yahui;Chen Zhenyu;Bai Chaoligeer;Zhang Zhiqiang;Tian Ang(School of Metallurgy,Northeastern University,Liaoning,110819;Liaoning Environmental Protection Group Co.,Ltd.,Liaoning,110032;Liaoning Provincial Ecological Environment Affairs Service Center,Liaoning,110161;Sichuan Shengtun Zinc Germanium Technology Co.,Ltd.,Sichuan,625400;Shenyang Zeer Testing Service Co.,Ltd.,Liaoning,110026)

机构地区：[1]东北大学冶金学院,辽宁110819 [2]辽宁省环保集团有限责任公司,辽宁110032 [3]辽宁省生态环境事务服务中心,辽宁110161 [4]四川盛屯锌锗科技有限公司,四川625400 [5]沈阳泽尔检测服务有限公司,辽宁110026

出　　处：《当代化工研究》2024年第11期72-75,共4页Modern Chemical Research

基　　金：辽宁省环保科研“锌冶炼用稀土基除氟废渣整体资源化利用技术研究”(项目编号:辽环科字〔2023〕55号);高校基本课题业务费“DFT辅助研究超细氧化铈纳米棒的催化应用”(项目编号:N2125032)。

摘　　要：为实现湿法炼锌工艺氟资源回收利用,本研究提出利用碳酸铈吸附湿法炼锌电解液中的氟。分析吸附时间、吸附温度、吸附剂投加量对碳酸铈除氟能力影响,得到了碳酸铈最佳吸附条件为吸附时间20 min、投加量0.7268 g、吸附温度55℃,评估了含氟废渣作为抛光粉的可行性。采用离子色谱与热力学和动力学结合的方式,探究碳酸铈除氟机理。结果表明吸附是熵增吸热过程,符合准二级吸附动力学模型,R2为0.99909。To achieve the recovery and utilization of fluorine resources in the wet zinc smelting process,herein,cerium carbonate is used to adsorb fluorine in the electrolyte of wet zinc smelting.The influence of adsorption time,adsorption temperature,and adsorbent dosage on the fluoride removal ability of cerium carbonate was analyzed.The optimal adsorption conditions for cerium carbonate were obtained as follows:Adsorption time of 20 min,cerium carbonate dosage of 0.7268 g,and adsorption temperature of 55℃.The feasibility of using fluorine-containing waste residue as polishing powder was evaluated.Exploring the mechanism of fluoride removal by cerium carbonate using a combination of ion chromatography,thermodynamics,and kinetics.The results indicate that adsorption is an entropy increasing endothermic process,which conforms to a quasi second order adsorption kinetic model with an R2 of 0.99909.

关 键 词：湿法炼锌 碳酸铈 吸附 除氟 抛光粉 

分 类 号：X758[环境科学与工程—环境工程]