Material composition of pyrite cinder

Table 1, Table 2, and Table 3 are the results of spectroscopic analysis, multi-element analysis, and iron phase analysis of pyrite cinder.

Table 1 Spectral analysis results of pyrite cinder (sintering)

element

Al

Si

Mg

Pb

Fe

Ti

Mo

Ca

Cu

Ag

Zn

content(%)

0.1

>10

0.1

0.1

>10

0.1

0.01

1.0

0.1

0.01

1>

Table 2 Multi-element analysis results

element

Fe

SiO 2

CaO

MgO

Al 2 O 3

S

TiO 2

As

content(%)

50.82

12.07

3.35

1.29

1.90

1.74

0.28

<0.1

element

Pb

Zn

Cu

Mn

P

Ag

Mo

content(%)

0.34

0.57

0.70

0.087

0.014

14.7g/t

0.0059

Table 3 Iron phase

Sulfate

Sulfide

Silicate

Magnetic iron oxide

Non-magnetic iron oxide and others

Total amount

Fe (%)

0.13

<0.10

0.53

10.60

39.45

50.82

According to the above table data, iron is the main recyclable element in the slag, and the content of other elements is low, which does not meet the requirements for comprehensive utilization. According to the standard of iron concentrate, the content of elements S, Cu, Pb and Zn exceeds the requirements for the content of harmful elements, and should be removed when producing iron concentrate.

Table 4 shows the analysis results of the slag screening analysis. It can be seen from the above that S in the slag is mainly concentrated in the coarse-grained grade. The iron is mainly concentrated in the fraction of -0.1 to +0.019 mm, and the grade of iron is high. The content of S is relatively low. Also, the content of Zn and SiO 2 is higher in the level of +0.15 mm. Iron has a lower grade in this class, and the +0.15mm level only accounts for 3.9%.

Table 4 Results of sieve analysis of slag

Granular grade

Yield(%)

grade(%)

Fe

S

Pb

Zn

SiO 2

+0.28

2.38

26.20

2.66

0.75

1.21

30.34

-0.28+0.15

1.56

28.12

1.08

0.36

1.16

38.73

-0.15+0.1

4.73

47.48

0.46

0.23

0.81

21.68

-0.1+0.074

18.42

57.59

0.40

0.22

0.59

11.43

-0.074 + 0.037

37.64

60.22

0.20

0.18

0.44

8.29

-0.037+0.019

24.50

53.36

0.22

0.36

0.56

14.19

-0.019+0.010

4.99

42.04

0.41

0.79

0.79

23.00

-0.010+0.005

0.9

37.89

0.56

0.94

1.01

25.50

-0.005

4.84

9.34

0.20

0.42

0.26

8.35

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