Recovery of Palladium from Nitric Acid Solutions of Spent Nuclear Fuel Reprocessing

被引：2

作者：

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

Korneyko, Yu, I ^{[1
]}

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

Krasnikov, L., V ^{[1
]}

Kretser, Yu L. ^{[1
]}

机构：

[1] Khlopin Radium Inst, St Petersburg 194021, Russia

来源：

RADIOCHEMISTRY | 2022年 / 64卷 / 03期

关键词：

palladium; degree of recovery; hexacyanoferrates; high-level waste; spent nuclear fuel; nitric acid solutions; CESIUM;

D O I：

10.1134/S1066362222030031

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The possibility of palladium recovery from nitric acid solutions simultaneously with the in situ synthesis of iron(III) hexacyanoferrate(II) (HCF) was studied. The molar ratio of the reagents Pd : PFC : Fe(III) = 1 : 2 : 2 (PFC is potassium ferrocyanide) was found to provide complete palladium recovery in the range of nitric acid concentrations of 1-5 M. Almost all cesium and significant amounts of molybdenum and silver are separated from the solution, simulating HLW from spent nuclear fuel reprocessing.

引用

页码：280 / 283

页数：4

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