饲料级湿法磷酸脱氟技术综述及发展思路  

Review of defluorination technology of feed grade WPA and its development thinking

作　　者：何宾宾 HE Binbin(Key Laboratory of Energy Saving and New Materials of Phosphorus Chemical Industry in Yunnan Province,Kunming 650500,China;National Engineering and Technology Research Center for Development and Utilization of Phosphorus Resources,Kunming 650600,China)

机构地区：[1]云南省磷化工节能与新材料重点实验室,云南昆明650500 [2]国家磷资源开发利用工程技术研究中心,云南昆明650600

出　　处：《磷肥与复肥》2020年第10期28-30,共3页Phosphate & Compound Fertilizer

基　　金：云南省磷化工节能与新材料重点实验室(2019)。

摘　　要：在浓酸法生产饲料级磷酸钙盐过程中,需对湿法浓磷酸进行脱氟,从而实现饲料级磷酸钙盐产品中氟含量达标。介绍氟在湿法磷酸中的存在形式以及化学脱氟、浓缩脱氟、汽提脱氟与萃取脱氟技术的原理与利弊。在此基础上,提出新的脱氟技术思路,为湿法浓磷酸深度脱氟提供指导。In the production process of concentrated acid method,it is necessary to defluorinate of wet concentrated phosphoric acid so as to reach the standard of fluorine content in feed grade calcium phosphate products.The existing forms of fluorine in WPA,and the principles,advantages and disadvantages of chemical defluorination,concentration defluorination,stripping defluorination and extraction defluorination technology are introduced.On this basis,new ideas of defluorination technology are put forward to provide guidance for the deep defluorination of WPA.

关 键 词：湿法磷酸 脱氟 饲料级磷酸钙盐 

分 类 号：TQ126.35[化学工程—无机化工]