利用磷石膏生产建筑石膏的研究

Study on Producing Building Gypsum from Phosphogypsum

使用锥形升流式分离器可以将磷石膏中的杂质分离，得到洁白、无放射性的二水石膏，用它生产的建筑石膏质量达优级标准．分离出的废渣是含磷较高的磷肥．利用磷石膏生产建筑石膏。

Using circular cone rising stream separator can separate impurity from phosphogypsun and obtaim snow-white dihydrate gypsum, which can produce high quality buiding gypsum. The separated impurity is good phosphate fertilizer. Producing building gypsum from phosphogypsum has good economic benifit as well as social benifit.