Extraction of Ir(III) with Cyanex-923 and Cyanex-471X from bromide media and its separation from Pt(IV), Pd(II) and Rh(III)

• Autorzy: Duche N. S. , Dhadke M. P.
• Języki publikacji: EN

Abstrakty

EN

Iridium(III) was extracted with Cyanex-923 and Cyanex-471X in toluene from bromide media and studied. The quantitative extraction was observed in the range of 5.0 - 6.0 M HBr with 1.0M Cyanex-923 and at 1.3 M Cyanex-471X in toluene, while metal ion was stripped out from organic phase of Cyanex-923 and Cyanex-471X with the mixture of 4.0 M HC1O4 + 2.0 M HNO3 and 6.0 M H2SO4 + 4.0 M HC1 respectively. In both the cases extraction of Ir(III) decreased with the increased concentration of stannous chloride. The thermal study showed that the extraction reactions are exothermic in nature with both the reagents, and the stoichiometric ratio of Ir(III) to Cyanex-923/Cyanex-471X in organic phase was 1:3. The separation of Ir(III) from Pt(IV), Pd(II), and Rh(III) has been also studied.

Słowa kluczowe

EN

extraction; Iridium(III); Cyanex 923; Cyanex-471X; hydrobromic acid; stripping; separation

PL

ekstrakcja; iryd; kwas bromowodorowy; oddzielanie

• Wydawca: West Pomeranian University of Technology. Publishing House
• Czasopismo: Polish Journal of Chemical Technology
• Rocznik: 2001
• Tom: Vol. 3, nr 1
• Strony: 21--25
• Opis fizyczny: Bibliogr. 23 poz., tab., rys., wykr.

Twórcy

autor

Duche N. S.

• Inorganic Chemistry Laboratory, Applied Chemistry Division, Department of Chemical Technology, University of Mumbai, Matunga, Mumbai - 400 019, INDIA

autor

Dhadke M. P.

• Inorganic Chemistry Laboratory, Applied Chemistry Division, Department of Chemical Technology, University of Mumbai, Matunga, Mumbai - 400 019, INDIA

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