Table 4.

Extraction of selenium(IV) from mixture of metal ions (Se⁴⁺, Te⁴⁺, Au³⁺, Cu²⁺, Ni²⁺, Pb²⁺, Zn²⁺) that may be contained in the leach liquor of copper anode slime dissolved in 6 mol/L HCl by 0.4 mol/L aliquat 336/kerosene

Ions	Amount Taken mg/L	Amount determined mg/L	%E
Se(IV) Te(IV) Au(III) Ag(I) Cu(II) Ni(II) Pb(II) Zn(II)	50.00 11.40 27.55 75.89 179.1 10.81 163.2 1.900	32.2 0.00 0.00 34.0 63.9 10.81 163.43 0.600	35.6 ≥ 99 ≥99 55.2 61.55 0.00 0.00 68.4