Characterization and Optimization of Calcination Process Parameters for Extraction of Aluminum from Ethiopian Kaolinite

Figure 2

FTIR curves of (a) kaolinite, (b) calcined kaolinite at 600°C, (c) calcined kaolinite at 650°C, (d) calcined kaolinite at 700°C, (e) extracted aluminum at 700°C, 180 min, and 106 μm, and (f) standard aluminum chloride hexahydrate.

(a)

(b)

(c)

(d)

(e)

(f)