Palladium extraction by a cyanex 301-based binary extractant from chloride solutions
摘要:
We studied the extraction of chloropalladium complexes by solutions of trioctylmethylammonium di(2,4,4-trimethylpentyl)dithiophosphinate in toluene over a wide range of aqueous acidities. Distribution factors and spectroscopic studies of extraction products showed that (R4N)[Pd(2)Cl(4)A] complexes are formed in the organic phase during extraction under near-saturation conditions. As the concentration of the binary extractant or dialkyldithiophosphinic acid increases, palladium di(2,4,4-trimethylpentyl)dithiophosphinate is formed in the organic phase.