Table 1 Main composition of two kinds of metallurgical dust and sludge, wt%.

From: Process and mechanism of preparing metallized blast furnace burden from metallurgical dust and sludge

Composition

TFe

Fe2O3

CaO

SiO2

Al2O3

MgO

SO3

MnO

ZnO

P2O5

C

Blast furnace ash

48.99

69.98

5.36

8.11

4.53

0.93

2.40

0.16

3.19

0.23

17.64

Converter sludge

54.59

77.99

11.00

1.14

0.29

2.38

0.46

2.38

2.68

0.15

1.09

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