云南化工2026，Vol.53Issue(9)：21-24,4.DOI:10.3969/j.issn.1004-275X.2026.09.05
SiO2 基脱氟剂在湿法磷酸氟回收中的应用
Application of SiO2-based Defluorinating Agents in Fluorine Recovery from Wet-process Phosphoric Acid
熊文烽 1覃小玲 1杨廷华 1韩德鑫 1杨志云 1张丹仙 1罗江州1
作者信息
- 1. 贵阳开磷化肥有限公司,贵州 贵阳 551109
- 折叠
摘要
Abstract
The efficient recovery and comprehensive utilization of by-product fluorine from wet-process phosphoric acid(WPA)production are central to the green development and resource valorization of the phosphate chemical industry.Given the increasing scarcity of global fluorite re-sources,fluorine recycling is strategically significant.SiO2-based defluorinating agents have become a dominant material in WPA fluorine recov-ery due to their abundant sources,good compatibility with the WPA system,and ability to convert fluorine into easily recoverable forms via direc-tional reactions.This review comprehensively describes the occurrence forms of fluorine in WPA,conventional defluorination technologies and their limitations,focuses on the defluorination mechanism of SiO2-based agents,sorts out the preparation methods,application status and perform-ance characteristics of natural mineral-based,industrial byproduct-based and modified composite SiO2-based defluorinating agents,analyzes their industrial application effects,and finally looks forward to the future development direction,so as to provide theoretical and practical reference for improving WPA fluorine recovery efficiency and promoting the coupled development of phosphorus and fluorine industries.关键词
SiO2 基脱氟剂/湿法磷酸/氟回收/磷化工/资源综合利用/脱氟机理Key words
SiO2-based Defluorinating Agent/Wet-process Phosphoric Acid/Fluorine Recovery/Phosphate Industry/Resource Utilization/Deflu-orination Mechanism分类
化学化工引用本文复制引用
熊文烽,覃小玲,杨廷华,韩德鑫,杨志云,张丹仙,罗江州..SiO2 基脱氟剂在湿法磷酸氟回收中的应用[J].云南化工,2026,53(9):21-24,4.
