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Journal of Engineering and Applied Science

Table 1 XRF analysis of raw and prepared catalysts

From: Preparation of inorganic catalysts from ceramic industry wastes for use in the production of biofuel

Main constituents

wt%

C

M-C

B

M-B

W1

M-W1

W2

M-W2

W3

M-W3

SiO2

48.91

51.69

48.70

67.17

23.55

21.24

61.13

72.62

62.29

70.51

TiO2

0.10

0.25

1.20

1.58

0.33

0.26

0.98

0.64

0.74

0.95

Al2O3

2.80

1.22

19.19

19.75

63.86

68.29

20.82

17.04

14.67

19.21

Fe2O3tot

20.10

33.62

9.55

5.42

1.16

1.60

3.66

1.27

2.8

2.74

MnO

0.247

0.13

0.10

0.01

–

0.03

0.031

0.01

0.023

0.02

MgO

14.37

3.67

2.06

0.87

1.96

1.82

1.37

0.79

0.32

0.34

CaO

0.49

0.39

4.47

0.35

3.51

0.29

1.4

0.42

8.26

0.30

Na2O

0.06

0.04

1.37

0.57

0.8

0.29

2.96

3.43

1.60

1.76

K2O

0.09

0.08

1.19

1.53

0.48

0.17

1.52

2.38

2.14

2.29

P2O5

0.02

0.03

0.25

0.10

0.17

0.08

0.2

0.05

0.14

0.10

SO3

0.03

0.06

1.28

0.09

–

0.04

0.4

0.06

0.44

0.07

Cl

0.03

0.08

0.44

0.02

–

0.02

0.08

0.02

0.07

0.021

LOI

11.47

6.64

9.96

2.32

–

0.24

5.26

1.09

7.37

1.50

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