Published 1980 | Version v1
Book Metadata-only

Effect of denitration on ruthenium volatilization

Creators

  • 1. Kernforschungsanlage, Juelich, Germany

Description

The volatilization of Ru depends on the compound in which the element is fixed. The ruthenium that dissolves in nitric acid solutions of fuel reprocessng plants exists principally as complexes of nitrosyl ruthenium with the general formula, RuNO(NO3)/sub x/OH/sub 3-x/ yH2O. As the molarity of the HNO3 is increased, the concentration of trinitrato-complexes increases. After the denitration of RuNO(NO3)3 with HCNO in 8 M HNO3 solution, heating in the temperature range of 130 to 2000C caused all denitrated ruthenium compounds to decompose to stable ruthenium dioxide. The volatility of RuO2 in air is 1 to 2% up to 10500C in contrast to elemental Ru

Additional details

Publishing Information

Publisher
Plenum Press.
Imprint Place
New York, NY
Imprint Title
Scientific basis for nuclear waste management
Journal Page Range
p. 911-917.

Conference

Title
Materials Research Society annual meeting.
Dates
26 - 29 Nov 1979.
Place
Boston, MA, USA.

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
12596906
Subject category
S12: MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES;
Resource subtype / Literary indicator
Conference
Descriptors DEI
DENITRATION; EVAPORATION; FORMALDEHYDE; HIGH TEMPERATURE; HIGH-LEVEL RADIOACTIVE WASTES; NITRATES; NITRIC ACID; RADIOACTIVE WASTE PROCESSING; RUTHENIUM; RUTHENIUM COMPLEXES; RUTHENIUM OXIDES; SOLIDIFICATION; VITRIFICATION; VOLATILITY
Descriptors DEC
ALDEHYDES; CHALCOGENIDES; CHEMICAL REACTIONS; COMPLEXES; ELEMENTS; HYDROGEN COMPOUNDS; INORGANIC ACIDS; MANAGEMENT; METALS; NITROGEN COMPOUNDS; ORGANIC COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; PHASE TRANSFORMATIONS; PLATINUM METALS; RADIOACTIVE MATERIALS; RADIOACTIVE WASTES; RUTHENIUM COMPOUNDS; TRANSITION ELEMENT COMPLEXES; TRANSITION ELEMENT COMPOUNDS; TRANSITION ELEMENTS; WASTE MANAGEMENT; WASTE PROCESSING; WASTES

Optional Information

Notes
Replaces CONF-791173.