Cu(II) extraction using quaternary ammonium and quaternary phosphonium based ionic liquid

Phosphonium salts and P-ylides

“…Castillo et al reported a study of the extraction of Cu(II) by PILs from simulated liquid mining waste. 210 Hg(II) removal from HCl solutions was investigated by Navarro and co-workers using of [P 66614 ]Cl impregnated onto Amberlite XAD-7 211 and Bi(III). 212 The same IL impregnated on silica was evaluated for Cs 1 adsorption by Negrea et al…”

Ferrocene redox in trihexyl(tetradecyl)phosphonium bis-2,4,4-(trimethylpentyl) phosphinate (Cyphos IL-104)/ethanol at glassy carbon and platinum working electrodes

“…It was more effective removing Cu(II) from chloride media, than sulfate media [3]. Its utility in the recovery of Pd(II) from a hydrochloric acid solution in the presence of toluene was investigated and found to depend on the concentration [4], Moreover, it was found to transport from 0.1 M HCl to the organic phase, less than 10% of other ions (Ni(II), Cu(II), Pd(II), Fe(III), Rh(III) and Ru(III)) [5].…”

Investigation of a novel ionic liquid, Cyphos IL 104 for the solvent extraction of mineral acids

“…(Cieszynska and Wisniewski, 2012;Rybka and Regel-Rosocka, 2012;Castillo et al, 2014). Interestingly Castillo et al (2014) have reported that some of these ionic liquids have strong tendency to extract acid in preference to the metal ions present in the aqueous solution. As such some reports are available on the use of ionic liquids for the extraction of organic acids.…”