摘要
溶剂萃取技术作为工业物质分离提纯中最常用的方法之一,被广泛应用于磷矿加工的多个环节。简述了溶剂萃取技术在磷矿制备磷酸的工艺过程的应用,重点介绍了磷矿加工过程中湿法磷酸和萃余酸的萃取、净化以及磷矿伴生氟、碘及稀土资源的萃取回收工艺,并将萃取法和其它净化方法进行了对比,最后对溶剂萃取技术在磷矿加工过程中的应用做出了总结并给出了未来的研究建议。
Solvent extraction technology,as one of the most commonly used methods in the separation and purification of industrial substances,is widely applied to many aspects of phosphate rock processing.This paper briefly describes the application of solvent extraction technology in the process of preparing phosphoric acid from phosphate rock,and focuses on the extraction and purification of wet phosphoric acid and raffinate acid in the process of phosphate rock processing,as well as the extraction of associated fluorine,iodine and rare earth resources from phosphate rock.The recovery processes were compared,and the extraction methods were compared with other purification methods.Finally,the application of solvent extraction technology in the processing of phosphate rock was summarized and suggestions for fu-ture research were given.
作者
彭向龙
刘松林
隋岩峰
李白玉
李天祥
朱静
PENG Xianglong;LIU Songlin;SUI Yanfeng;LI Baiyu;LI Tianxiang;ZHU Jing(School of Chemistry and Chemical Engineering,Guizhou University,Guiyang 550025,China;State Key Laboratory of Efficient Utilization for Low Grade Phosphate Rock and Its Associated Resources,Guiyang 550002,China)
出处
《化学工业与工程》
CAS
CSCD
北大核心
2024年第4期147-159,共13页
Chemical Industry and Engineering
基金
贵州省科技支撑计划项目(黔科合支撑[2017]2317)。
关键词
溶剂萃取技术
磷矿加工
湿法磷酸
萃余酸
氟、碘、稀土回收
solvent extraction technology
phosphate rock processing
wet process phosphoric acid
raffi-nate acid
fluorine,iodine,rare earth recovery
