湿法磷酸浓缩系统氟回收优化改造  

Optimization and transformation of fluorine recovery from wet-process phosphoric acid concentration system

作　　者：周智武 杨琴 肖银兵 ZHOU Zhiwu;YANG Qin;XIAO Yinbing(Wengfu Chemical Company,Wengfu(Group)Co.,Ltd.,Fuquan 550501,China)

机构地区：[1]瓮福(集团)有限责任公司瓮福化工公司,贵州福泉550501

出　　处：《磷肥与复肥》2024年第5期27-28,共2页Phosphate & Compound Fertilizer

摘　　要：介绍瓮福化工公司湿法磷酸装置浓缩系统氟回收基本情况,并从氟的物料平衡进行梳理。重点针对浓缩系统氟逸出后的回收进行优化改造,一是从生产管理方面进行优化操作;二是从设备方面进行改造,包括将塔洗涤改为管道洗涤,优化喷淋方式,提高循环洗涤液流量。改造后装置的氟回收率由58%左右提高至70%左右,氟硅酸产能由30 kt/a提高到36 kt/a。The basic situation of fluorine recovery in phosphoric acid concentration system of Wengfu Chemical Company is introduced,and the material balance of fluorine is sorted out.The focus is on the optimization and transformation of fluorine recovery after the concentration system escaped.The first is to optimize the operation in production management,and the second is to transform the equipment by using pipeline washing instead of tower washing,optimizing spray methods,and increasing the flow rate of circulating washing solution.After transformation,the fluorine recovery rate is increased from 58% to 70%,the fluosilicic acid capacity is increased from 30kt/a to 36kt/a.

关 键 词：磷酸浓缩 氟回收 优化改造 

分 类 号：TQ126.35[化学工程—无机化工] TQ124.3