Published February 2010 | Version v1
Journal article Metadata-only

Reaction Between Monomethylhydrazine and Nitrosylruthenium Nitrato Complexes

Creators

  • 1. China Institute of Atomic Energy, Beijing (China)

Description

The influence of monomethylhydrazine (MMH) concentration, acidity, temperature and heat preservation time on decontamination of ruthenium (Ru) have been studied in the paper. By solvent extraction method, a reaction rate equation of the system studied is obtained as follows: r=Kc6.38 (RuNO ( III )) c2.60 (MMH)c-0.88 (HNO3). The reaction rate increases with the increase of MMH concentration, while decreases with the increase of nitric acid concentration. The Ru distribution coefficient decreases obviously by 2 h pretreatment with the system of 0.1 mol/L MMH and 0.2 mol/L HNO3 at 75 degree C. By this way, the extractable Ru content decreases, and the effect of pretreatment is obvious. (authors)

Additional details

Publishing Information

Journal Title
Journal of Nuclear and Radiochemistry
Journal Volume
32
Journal Issue
1
Journal Page Range
p. 8-12
ISSN
0253-9950

INIS

Country of Publication
China
Country of Input or Organization
China
INIS RN
42071099
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; S11: NUCLEAR FUEL CYCLE AND FUEL MATERIALS;
Descriptors DEI
CONCENTRATION RATIO; DECONTAMINATION; DISTRIBUTION FUNCTIONS; EQUATIONS; HEAT; HYDRAZINE; NITRIC ACID; PH VALUE; REACTION KINETICS; RUTHENIUM; RUTHENIUM COMPLEXES; RUTHENIUM NITROSYLS; SOLVENT EXTRACTION; TIME DEPENDENCE
Descriptors DEC
CLEANING; COMPLEXES; DIMENSIONLESS NUMBERS; ELEMENTS; ENERGY; EXTRACTION; FUNCTIONS; HYDROGEN COMPOUNDS; INORGANIC ACIDS; INORGANIC COMPOUNDS; KINETICS; METALS; NITROGEN COMPOUNDS; OXYGEN COMPOUNDS; PLATINUM METALS; REFRACTORY METAL COMPOUNDS; REFRACTORY METALS; RUTHENIUM COMPOUNDS; SEPARATION PROCESSES; TRANSITION ELEMENT COMPLEXES; TRANSITION ELEMENT COMPOUNDS; TRANSITION ELEMENTS

Optional Information

Notes
5 figs., 3 tabs., 15 refs.