A Capillary Model for Predicting Saturated Hydraulic Conductivity of Ion-Adsorption Rare Earth Ore Based on Improved Kozeny–Carman Equation

Table 1

Partition and physical properties of ion-adsorption rare earth ore.

Partition	(%)	Physical properties
CeO2	2.41	Specific gravity	2.71
Dy2O3	7.94	Density (g/cm^3)	1.67
Er2O3	4.42	Natural moisture content (%)	16.21
Eu2O3	0.11	Air-dried moisture content (%)	3.91
Gd2O3	7.48	Porosity (%)	49.19
Ho2O3	1.49	Liquid limit (%)	39.56
La2O3	7.97	Plastic limit (%)	30.27
Lu2O3	0.65	D10 (mm)	0.075
Nd2O3	12.47	D30 (mm)	0.506
Pr6O11	2.83	D50 (mm)	1.207
Sm2O3	5.94	D60 (mm)	1.717
Tb4O7	1.23	Cu	22.759
Tm2O3	0.69	Cc	1.977
Y2O3	39.76
Yb2O3	4.61

Notes: D₁₀, D₃₀, D₅₀, and D₆₀ are the particle sizes which is less than 10%, 30%, 50%, and 60% of the total soil mass on the particle size distribution curve, correspondingly, C_u is the coefficient of uniformity (D₆₀/D₁₀), and C_c is the coefficient of curvature ((D₃₀)²/(D₁₀ × D₆₀)).