Effect of Ball Milling Time on the Performance of Phosphorous Building Gypsum

Table 1

Chemical composition of phosphogypsum.

Component	SiO2	Al2O3	Fe2O3	MnO	MgO	CaO	K2O	P2O5	SO3	Organism
Content (%)	14.52	1.66	0.15	0.005	0.17	31.94	0.22	0.94	45.38	0.25