Processing device for volatile ruthenium in off-gas
Description
Volatile ruthenium has a nature of forming stable non-volatile ruthenium dioxide solids upon contact with an organic solvent. In view of the above, in a volatile ruthenium processing device comprising an off-gas inlet pipeway, a cooler, a demister and a heater connected to each other, a gas scrubbing tower having an organic solvent as a cleaning solution is disposed between the off-gas inlet pipeway and tahe cooler and the organic solvent and the off-gases are brought into contact in a counter-current manner in the gas scrubging tower. This enables to convert the volatile ruthenium in the gases into stabale ruthenium dioxide solids and deposit them into the organic solvent. Further, since the deposited ruthenium dioxide solides can easily be separated by filters, the organic solvent as the cleaning solution can always be kept clean and the adsorption performance for volatile ruthenium is not reduced even after repeating use. (T.M.)
Availability note (English)
Available from JAPIO. Also available from INPADOC.Additional details
Publishing Information
- Imprint Pagination
- 4 p.
- IPC:
- Int. Cl. G21F9/02.
- IPC
- Int. Cl. G21F9/02.
- Patent number
- JP patent document 1-132999/A/
INIS
- Country of Publication
- Japan
- Country of Input or Organization
- Japan
- INIS RN
- 21008105
- Subject category
- S12: MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES;
- Resource subtype / Literary indicator
- Non-conventional Literature
- Descriptors DEI
- ADSORPTION; FILTERS; OFF-GAS SYSTEMS; ORGANIC SOLVENTS; PRECIPITATION; PURIFICATION; RUTHENIUM; RUTHENIUM OXIDES; SEPARATION PROCESSES; VOLATILITY; WASTE PROCESSING
- Descriptors DEC
- CHALCOGENIDES; ELEMENTS; MANAGEMENT; METALS; NONAQUEOUS SOLVENTS; OXIDES; OXYGEN COMPOUNDS; PLATINUM METALS; RUTHENIUM COMPOUNDS; SOLVENTS; TRANSITION ELEMENT COMPOUNDS; TRANSITION ELEMENTS; WASTE MANAGEMENT
Optional Information
- Secondary number(s)
- JP patent application 62-290511.