t =
0.0
s
X =
0.0
%
core r =
100
%
k =
0.00
µm/s
Al₂O₃ =
0.0
t
reaction-controlled
Leach temperature
75 °C
NH₃ concentration
2.0 mol/L
Particle size
0.40 mm
Agitation
400 rpm
Start
Reset charge
Shrinking-core model: 1−(1−X)
1/3
= k·t / r₀, with k = A·exp(−Ea/RT)·[NH₃]
0.5
. Charge: 100 t alunite ore per batch.