Research on Enrichment of P₂O₅ from Low-Grade Carbonaceous Phosphate Ore via Organic Acid Solution

Table 1

Chemical analysis of phosphate rock (GL2-3#).

Chemical composition	Al2O3	CaO	Fe2O3	K2O	MgO	P2O5	SiO2	LOI	Others	REE
Content (%)	0.20	39.60	0.37	0.08	10.55	17.45	5.97	24.27	1.51	889.76 × 10^−4