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Журнал Сибирского федерального университета. Химия. Journal of Siberian Federal University/ Chemistry  / №4 2015

Sorption Recovery of Platinum (IV) from Hydrochloric Acidic Solutions in Presence of Iron (III), Copper (II) and Zinc (150,00 руб.)

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Первый авторKononova
АвторыEvgeniya V.
Страниц8
ID456639
АннотацияThe present work is devoted to sorption preconcentration of platinum (IV) in the presence of iron (III), copper (II) and zinc from chloride solutions on the samples of CYBBER – new samples of ion exchangers. The initial concentrations of platinum, iron and non-ferrous metal ions were 0.25, 0.5 and 2.0 mmol/L, respectively. The acidity of the investigated solutions was 0.01 – 2 mol/L. It was shown that the ion exchangers possess high sorption ability to the noble metal ions, and allow the quantitative recovery of these ions. It was also found out that platinum can be isolated from the accompanying components by means of separate elution with 0.001 M HCl (iron ions), 0.5 M HNO3 (non-ferrous metal ions) and thiourea solution (80 g/L) in 0.3 M H2SO4 (platinum ions).
УДК544.726-034.2
Kononova, OlgaN. Sorption Recovery of Platinum (IV) from Hydrochloric Acidic Solutions in Presence of Iron (III), Copper (II) and Zinc / OlgaN. Kononova, V. Evgeniya // Журнал Сибирского федерального университета. Химия. Journal of Siberian Federal University/ Chemistry .— 2015 .— №4 .— С. 15-22 .— URL: https://rucont.ru/efd/456639 (дата обращения: 05.05.2024)

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Chemistry 4 (2015 8) 491-498 ~ ~ ~ УДК 544.726-034.2 Sorption Recovery of Platinum (IV) from Hydrochloric Acidic Solutions in Presence of Iron (III), Copper (II) and Zinc Olga N. Kononova* and Evgeniya V. Duba Siberian Federal University 79 Svobodny, Krasnoyarsk, 660041 Russia Received 17.10.2015, received in revised form 26.11.2015, accepted 12.12.2015 The present work is devoted to sorption preconcentration of platinum (IV) in the presence of iron (III), copper (II) and zinc from chloride solutions on the samples of CYBBER – new samples of ion exchangers. <...> The initial concentrations of platinum, iron and non-ferrous metal ions were 0.25, 0.5 and 2.0 mmol/L, respectively. <...> The acidity of the investigated solutions was 0.01 – 2 mol/L. It was shown that the ion exchangers possess high sorption ability to the noble metal ions, and allow the quantitative recovery of these ions. <...> It was also found out that platinum can be isolated from the accompanying components by means of separate elution with 0.001 M HCl (iron ions), 0.5 M HNO3 metal ions) and thiourea solution (80 g/L) in 0.3 M H2 (non-ferrous SO4 (platinum ions). <...> All rights reserved * Corresponding author E-mail address: cm2@bk.ru # 491 # Olga N. Kononova and Evgeniya V. Duba. <...> Introduction In recent years the industrial consumption of platinum group metals (PGM) has been substantially grown up, which is largely related to their unique physical and chemical properties. <...> The industrial application of the PGM is getting broader as well [1, 2]. <...> In Russia, the major sources of PGM are the sulfi de copper-nickel ores from the Talnakh peninsula of Krasnoyarsk Region [1-3]. <...> Therefore, after the processing of these ores and conversion of PGM into solution, the noble metals are accompanied with iron, copper, zinc, nickel, cobalt and other non-ferrous metal ions. <...> The distinctive feature of all sources of PGM is their multielement composition, where the noble metals are micro components, whereas the accompanying metals are macro components [1, 3, 4]. <...> The breakdown of these raw materials results in the low concentrations of noble metals in the obtained industrial solutions [1 <...>