溶剂萃取法净化湿法磷酸国内近况  

Current Status of Purifying Wet-process Phosphoric Acid by Solvent Extraction Method in China

作　　者：钟本和[1] 陈亮[1] 李军[1] 龚海燕[1] 

机构地区：[1]四川大学化工学院,四川成都610065

出　　处：《硫磷设计与粉体工程》2006年第6期1-6,共6页Sulphur Phosphorus & Bulk Materials Handling Related Engineering

摘　　要：综述了湿法磷酸净化的常用方法及优缺点,介绍了典型的溶剂萃取法工业化流程以及国内外的研究现状,着重阐述了由四川大学和贵州宏福实业开发有限总公司共同开发的溶剂萃取法净化湿法磷酸的工艺流程和技术特点,认为该工艺的流程短、投资少、生产成本低,SO42-脱除彻底,P2O5利用率高、能耗低,具有自主知识产权,应用前景广阔。The commonly used methods for purifying wet-process phosphoric acid and their respective advantages and disadvantages are outlined.A typical industrialized flow of solvent extraction method as well as the status of research both in China and abroad are recounted.The process flow and technological features of the solvent extraction method for wet-process phosphoric acid purification co-developed by Sichuan University and Guizhou Hongfu Industry Development General Co.,Ltd are highlighted.It's considered to feature a short flow,less investment,low production cost,complete removal of SO^(2-)_4,high utilization of P_2O_5,low energy consumption,and it is a proprietary technology,which offers an excellent application prospect.

关 键 词：湿法磷酸 净化 工艺 溶剂萃取+化学净化 综述 

分 类 号：TQ126.35[化学工程—无机化工]