Table 2 XRF result of Raw and calcined Amagunze microcline6.

From: Optimization of alumina leaching from microcline using particle swarm optimization and response surface methodology

Component

Raw sample (%)

Calcined sample (%)

Component

Raw sample (%)

Calcined sample (%)

SiO2

53.98

58.49

MgO

1.16

1.07

TiO2

1.38

1.06

CaO

0.62

2.35

Al2O3

27.25

27.75

K2O

3.61

3.63

Fe2O3

11.56

7.23

P2O5

0.14

0.07

Cr2O3

0.02

0.01

SO3

0.19

0.24

ZnO

0.01

0.01

SrO

0.06

0.04

MnO

0.02

0.03

Cl

0.003

0.02

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