Recovery of Rhodium, Ruthenium, and Palladium from Nitric and Hydrochloric Acid Solutions with Iron(III) Hexacyanoferrate(II)

被引：0

作者：

Davydova, P. V. ^{[1
]}

Korolev, V. A. ^{[1
]}

机构：

[1] Khlopin Radium Inst, 2-i Murinskii Pr 28, St Petersburg 194021, Russia

来源：

RUSSIAN JOURNAL OF APPLIED CHEMISTRY | 2023年 / 96卷 / 11期

关键词：

Fe-4[Fe(CN)(6); Rh; Ru; Pd; sorption isotherm; metal recovery; process solutions; platinum metals; FUEL; FERROCYANIDE; METALS; BLUE;

D O I：

10.1134/S1070427223110024

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The possibility of recovering Rh, Ru, and Pd from nitric and hydrochloric acid solutions with Fe-4[Fe(CN)(6)](3) was examined. The conditions for practically complete recovery of the sum of platinum group metals from nitric acid solutions at the acid concentrations in the interval 1-5 M were determined. From hydrochloric acid solutions, Rh and Ru can be recovered at the acid concentration of 0.1-0.5 & Mcy;. Pd is completely recovered from both 1-5 M nitric and 1-5 M hydrochloric acid solutions. From simulated spent nuclear fuel reprocessing solutions, Cs, Mo, and Zr are recovered to different extents jointly with Rh, Ru, and Pd. The Rh and Ru sorption isotherms are described by the Langmuir equation. The Pd sorption isotherm has a nonstandard two-step shape. Fe-4[Fe(CN)(6)](3) can be recommended for recovering platinum metals from process solutions, including those from reprocessing of spent nuclear fuel and spent catalysts.

引用

页码：937 / 943

页数：7

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