Recovery Process for Critical Metals: Selective Adsorption of Nickel(II) from Cobalt(II) at Acidic Condition and Elevated Temperature

Table 2

Characteristic Langmuir isotherm parameters () depending on adsorptive and temperature.

Adsorptive	(°C)	(L · μmol(M(II))^-1)	(μmol(M(II)) · μmol(Ligand)^-1)	(mg(M(II)) · g(Adsorbent)^-1)
Ni(II)	20	4.1·10^-2	0.72	22.2
Co(II)	20	9.6·10^-3	0.49	15.1
Ni(II)	50	9.8·10^-3	0.59	18.3
Co(II)	50	2.9·10^-3	0.52	16.0