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
吕妍鹭 1鲜磊 1杨林1
作者信息
- 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
- 折叠
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30 min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.
Abstract
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 30 min,a five stage cross 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Key words
solvent extraction method/phosphoric acid waste solution containing aluminum/aluminum ion separation引用本文复制引用
出版年
2024
NETL
NSTL
万方数据