Taking phosphogypsum from factory as the raw material,the possibility of transformation into plaster of paris is studied by the experiments of chemical analysis,calcining technology,check test.

• 以磷酸厂的废渣磷石膏为原料,通过化学成分分析、磷石膏炒制、对比研究等实验,探讨了其转化为建筑石膏的可能性。