1st grade phosphate rock

N₀

Components %

1^st grade

2^nd grade

3^rdgrade

Beneficiated

1

P₂O₅ (BPL)

32 ± 1

(71¸ 72%)

23 ± 1

(50 ¸ 57 %)

15 ± 1

32 ± 1

(71¸ 72 %)

2

SiO₂

17

11

50

14,5

3

CaO

45

45

22

42

4

Fe₂O₃

3,5

3

4

3

5

Al₂O₃

6

2,5

8

3,5

6

MgO

3

8

3

1

7

H₂O

14 ± 1

3 ± 1

18 ± 1

16 ± 18

8

Size Fraction (mm)

1 ¸ 250: 70%

25 ¸ 250: 70

1 ¸ 250: 70%

< 0,1: 98%