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Статья
2021

Recovery of Palladium(II) and Platinum(IV) with Heterochain Complexing Sorbents from Solutions Simulating Leaching Solutions of Spent Industrial Catalysts and Spent Refining Solution


G. R. AnpilogovaG. R. Anpilogova, Yu. I. MurinovYu. I. Murinov
Российский журнал прикладной химии
https://doi.org/10.1134/S107042722103006X
Abstract / Full Text

The possibility of selective recovery of palladium(II) and platinum(IV) in the batch mode with heterochain complexing sorbents of polycondensation type from hydrochloric acid solutions simulating spent leaching solutions of spent industrial catalysts and mother liquor after ammonium hexachloroplatinate precipitation was examined. At 19°C and phase contact time of 2 h, the sorbent with 1-(2-aminoethyl)piperazine and dimethylene sulfide functional groups recovers more than 99.9% of palladium(II) of the simulated solution from leaching APK-2 catalyst (sorption capacity ЕPd = 501 mg g–1) and 97–98% of platinum(IV) from the simulated solution of leaching the platinum–nickel catalyst (EPt = 86 mg g–1) with the selective separation of Pd(II) from Al(III) and of Pt(IV) from Al(III) and Ni(II). Polymethylene monosulfide at 80°C and phase contact time of 3 h recovers almost completely recovers palladium(II) (ЕPd = 34 mg g–1) and 95% of platinum(IV) (EPt = 6 mg g–1) from the simulated mother liquor with selective separation of the platinum metals from the concomitant elements Cu(II), Zn(II), Fe(III), and Sn(IV).

Author information
  • Ufa Institute of Chemistry, Ufa Federal Research Center, Russian Academy of Sciences, 450054, Ufa, RussiaG. R. Anpilogova & Yu. I. Murinov
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