Kinetic Analysis of Aluminum Extraction from Ethiopian Kaolinite Using Hydrochloric Acid

Table 5

Chemical compositions of Ethiopian metakaolinite at 700°C for 180 min and residue.

	Oxides	SiO2	Al2O3	TiO2	K2O	Na2O	MgO	Fe2O3	LOI^2
(a) Metakaolinite	Composition (%)	62.84	36.09	0.38	0.27	0.18	0.19	0.04	0.01
(b) Residue	Composition (%)	85.54	3.44	0.52	0.02	0.01	0.02	0.01	10.43