磷矿湿法加工过程中氟回收技术研究及其利用进展  

Research of fluorine recovery and utilization technology in phosphate rock wet processing

作　　者：何宾宾 杨文娟 HE Binbin;YANG Wenjuan(National Engineering and Technology Research Center for the Development&Utilization of Phosphorous Resources,Kunming 650600,China;Kunming University of Science and Technology,Kunming 650031,China)

机构地区：[1]国家磷资源开发利用工程技术研究中心,云南昆明650600 [2]昆明理工大学,云南昆明650031

出　　处：《生态产业科学与磷氟工程》2025年第2期71-80,共10页Eco-industry Science & Phosphorus Fluorine Engineering

基　　金：云南省科技厅科技计划—技术创新人才培养对象项目(何宾宾)。

摘　　要：氟是一种宝贵的国家战略资源,但全球萤石资源量少,且开采利用量大;磷矿伴生了大量的氟资源,但湿法加工过程中氟平均回收率低于40%。针对这些问题,从氟的赋存矿物类型出发,阐述磷矿湿法加工过程中氟的赋存形态及转化机制,基于赋存形态提出了液相和固相氟的回收技术,并总结氟硅酸加工利用技术,包括生产无水氟化氢、氟硅酸钠和氟化钾;最后提出氟回收与利用技术发展方向。Fluorine is a valuable national strategic resource,but the global fluorite resources are small,and the exploitation and utilization amount is large,while the phosphate ore is associated with a lot of fluorine resources,but the average recovery rate is less than 40%in the wet processing process.To solve these problems,based on the mineral types of fluorine,the fluorine occurrence form and transformation mechanism in the wet process of phosphate rock processing are described,and recovery technology of liquid and solid phase fluorine is proposed.The processing and utilization technology of fluorosilicic acid are summarized,including production anhydrous hydrogen fluoride,sodium fluorosilicate and potassium fluoride.Finally,the development direction of fluorine recovery and utilization technology is put forward.

关 键 词：磷矿 湿法磷酸 氟回收 氟利用 

分 类 号：TQ126.35[化学工程—无机化工] TQ124.3