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

Figure 1

Results of single-factor experiments (a) L/S = 40 : 1(vol./wt.), D = 0.075 mm, at 40°C; (b) L/S = 40 : 1(vol./wt.), 5% acetic acid; (c) 5% acetic acid, at 40°C; (d) 5% acetic acid, at 40°C, D = 0.075 mm.

(a)

(b)

(c)

(d)