Dual Role of Fe²⁺ in the Galena Flotation and Influence on Selective Separation

Table 2

The Mulliken atomic charge and population before and after FeOH⁺.

Atom	Adsorption status	s	p	d	Total	Charge (e)
Fe	Before adsorption	0.78	0.14	6.75	7.67	0.33
	After adsorption	0.66	0.32	6.59	7.56	0.44
O	Before adsorption	1.84	5.02	0.0	6.86	-0.86
	After adsorption	1.85	5.06	0.0	6.91	-0.91
Pb	Before adsorption	1.98	1.45	10.0	13.43	0.57
	After adsorption	1.90	1.51	10.0	13.41	0.59
S	Before adsorption	1.93	4.71	0.0	6.64	-0.64
	After adsorption	1.92	4.75	0.0	6.67	-0.67