摘要
磷石膏是湿法生产磷酸过程中的一种固体废弃物,是我国排放量很大的化学石膏。作者首先介绍了磷石膏的特性及应用现状,就磷石膏中杂质进行了分类和讨论,对磷石膏除杂工艺研究方法进行了分类介绍,对各种除杂方法的特点进行了归纳总结。
Phosphogypsum is a solid waste in the process of wet-process phosphoric acid production and it is a great part of chemical gypsum in China.This paper first introduced the characteristics and the applications of phosphogypsum at present.The impurities in the phosphorus gypsum has been classified and discussed,and the study on the techniques of eliminating the impurities of phosphogypsum has been classified.The characteristics of the various methods for eliminating the impurity were summarized.
出处
《化工科技》
CAS
2010年第6期59-64,共6页
Science & Technology in Chemical Industry
基金
云南省教育厅科学研究基金项目(5Y0678D)
昆明理工大学开放性实验资助项目
关键词
磷石膏
特性
杂质
影响
除杂
方法
Phosphogypsum
Property
Impurities
Impact
Impurity
Methods
