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

Table 6

Selectivity of reaction engineering () for the Ni(II) adsorption onto HSU331 in dependence of molar ratio, initial concentration, and temperature.

(μmol · L^-1)	Ni(II) : Co(II) molar ratio 1 : 1		Ni(II) : Co(II) molar ratio 1 : 3
	20°C	50°C	20°C	50°C
1000	0.58	0.54	0.25	0.20
2800	0.88	0.86	0.44	0.33
5600	0.88	0.98	0.67	0.55
15000	0.82	0.88	0.92	0.92