湿法磷酸净化技术研究新进展及应用现状  

New research progress and present application situation of purification technology for wet-process phosphoric acid

作　　者：齐亚兵 张思敬[1] QI Ya-bing;ZHANG Si-jing(School of Chemistry and Chemical Engineering,Xi’an University of Architecture and Technology,Xi’an 710055,China)

机构地区：[1]西安建筑科技大学化学与化工学院,陕西西安710055

出　　处：《应用化工》2022年第9期2798-2804,共7页Applied Chemical Industry

基　　金：陕西省重点研发计划项目(2020SF-364);西安建筑科技大学人才科技基金(RC1714);西安建筑科技大学青年科技基金(QN1509)。

摘　　要：工业上生产的磷酸是以湿法磷酸为主,但湿法磷酸中的杂质较多,在使用前需要进行深度净化。湿法磷酸的净化技术包括萃取法、结晶法、电渗析法、离子交换法和吸附法等,其中萃取法是使用较多的一种净化方法。工业上通常是将多种净化方法联合起来才能达到所需的磷酸纯度。对当前国内外湿法磷酸净化技术的研究新进展、应用现状、存在问题进行了全面系统的综述,对其未来的发展方向进行了展望。The main method of producing phosphoric acid is the wet-process.However,the wet-process phosphoric acid contains many impurities,it should be deeply purified before using.The purification technology for wet-process phosphoric acid contains extraction,crystallization,electrodialysis,ion exchange,and adsorption and so on.The extraction method is the more commonly used one.In order to gain high pure phosphoric acid,multiple methods are used together in purification of raw phosphoric acid.According to purification methods,the research progress,present application situation,and existing problems of purification technologies for wet-process phosphoric acid are systematically summarized.Finally,the development trend of purification technologies are also discussed.

关 键 词：湿法磷酸 萃取法 结晶法 电渗析法 离子交换法 吸附法 净化 

分 类 号：TQ111[化学工程—无机化工]