Published January 3, 1994 | Version v1
Journal article Metadata-only

Platinum catalyzed reduction of uranium(VI) with hydrazine in sulfuric acid media

Creators

  • 1. Tajoura Nuclear Research Centre, Tripoli (Libya)
  • 2. AN SSSR, Moscow (Russian Federation). Inst. Fizicheskoj Khimii

Description

The process of platinum-catalyzed uranium(VI) reduction with hydrazine in sulfuric acid media has been studied. The influence of sulfuric acid and hydrazine concentrations, and temperature on the reaction rate were investigated. A new reaction mechanism is proposed. The process allows to obtain pure U(IV) sulfate solutions with concentrations of up to 0.3 mol*l-1. Further increase of initial U(VI) concentrations is limited by the reductant solubility in sulfuric acid media. (author) 6 refs.; 3 figs.; 1 tab

Additional details

Publishing Information

Journal Title
Journal of Radioanalytical and Nuclear Chemistry
Journal Volume
186
Journal Issue
1
Journal Page Range
p. 89-97.
ISSN
0236-5731
CODEN
JRNCDM

INIS

Country of Publication
Hungary
Country of Input or Organization
Hungary
INIS RN
25030469
Subject category
S38: RADIATION CHEMISTRY, RADIOCHEMISTRY AND NUCLEAR CHEMISTRY;
Descriptors DEI
CATALYSTS; CHEMICAL REACTION KINETICS; HYDRAZINE; HYDROMETALLURGY; PLATINUM; REDUCTION; SULFURIC ACID; URANIUM
Descriptors DEC
ACTINIDES; CHEMICAL REACTIONS; ELEMENTS; EXTRACTIVE METALLURGY; HYDROGEN COMPOUNDS; INORGANIC ACIDS; INORGANIC COMPOUNDS; KINETICS; METALLURGY; METALS; OXYGEN COMPOUNDS; PLATINUM METALS; REACTION KINETICS; SULFUR COMPOUNDS; TRANSITION ELEMENTS