溶剂萃取法分离含铝磷酸废液中铝离子的工艺研究  

Study on the process of separating aluminum ions from phosphoric acid waste solution containing aluminum by solvent extraction method

作　　者：吕妍鹭 鲜磊 杨林[1] LYU Yanlu;XIAN Lei;YANG Lin(Engineering Research Center of Comprehensive Utilization and Clean Processing of Phosphorus Resources of Ministry of Education,School of Chemical Engineering,Sichuan University,Chengdu 610065,China)

机构地区：[1]四川大学化学工程学院教育部磷资源综合利用与清洁加工工程中心,四川成都610065

出　　处：《生态产业科学与磷氟工程》2024年第12期10-15,共6页Eco-industry Science & Phosphorus Fluorine Engineering

基　　金：四川省科技计划项目“废酸液高值资源化利用关键技术研究”(2023YFS0475)。

摘　　要：针对含有大量铝离子的磷酸蚀刻废液,研发一种溶剂萃取法脱除金属铝离子的工艺,优化了萃取工艺条件。在使用P-15萃取剂、磺化煤油与P-15萃取剂的质量比为2、萃取相比为4、萃取温度60℃、萃取时间30min条件下进行五级错流萃取,Al2O3萃取率能够达到58.68%,大幅提升了磷酸废液的价值,为未来磷酸废液的净化回收以及高值化利用提供了可行性。A solvent extraction method has been developed to remove aluminum ions from phosphoric acid etching waste solution which contains a large amount of aluminum ions,and the extraction process conditions have been optimized.Under the conditions of using P-15 extractant,sulfonated kerosene and P-15 extractant in a mass ratio of 2,extraction ratio of 4,extraction temperature of 60℃,and time of 30min,afivestagecross flow extraction is carried out,and the extraction rate of aluminum ions can reach 58.68%,greatly improving the value of phosphoric acid waste solution and providing feasibility for the purification,recovery and high-value utilization of phosphoric acid waste solution in the future.

关 键 词：溶剂萃取法 含铝磷酸废液 铝离子分离 

分 类 号：TQ126.35[化学工程—无机化工]