磷石膏杂质及净化研究现状  

Research status of phosphogypsum impurities and purification

作　　者：李恒 郭旭东 钟晋 张晖 LI Heng;GUO Xudong;ZHONG Jin;ZHANG Hui(Yunnan Yuntianhua Environmental Protection and Technology Co.,Ltd.,Kunming 650000,China)

机构地区：[1]云南云天化环保科技有限公司,云南昆明650000

出　　处：《磷肥与复肥》2022年第5期22-26,共5页Phosphate & Compound Fertilizer

基　　金：云南省工业高新技术专项(No.202003AA080032)。

摘　　要：磷石膏作为湿法磷酸的主要副产物,由于杂质种类复杂多样,无法得到有效的资源化利用。归纳总结磷石膏中杂质的种类、存在形态及其对石膏性能的影响;将现有净化除杂方式分为湿法净化和干法净化,并对各净化方式的工艺技术进行分析对比。展望磷石膏净化技术的发展趋势,为磷石膏净化除杂提供参考。Phosphogypsum,as the main by-product of wet-process phosphoric acid,cannot be effectively utilized due to the complex and diverse impurities.The composition and form of impurities in phosphogypsum and their influence on gypsum properties are summarized;The existing purification methods are divided into wet purification and dry purification,and the technology of each purification method is analyzed and compared.The development trend of phosphogypsum purification technology is prospected to provide reference for purification and impurity removal of phosphogypsum.

关 键 词：磷石膏 杂质 干法净化 湿法净化 

分 类 号：X781[环境科学与工程—环境工程]