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Ruthenium separation, particularly in the context of nuclear fuel reprocessing, often requires specialized, highly corrosion-resistant equipment due to the volatile and complex nature of ruthenium species (like
). Glass reactors, typically borosilicate, are used in laboratory-scale experiments and specialized industrial processes for this purpose.
Key Applications in Glass Reactors
- Volatile Separation: Ruthenium forms a highly volatile ruthenium tetroxide (), which is separated from high-level radioactive waste by distillation in glass-lined vessels.
Common Reactor Types and Materials
- Jacketed Glass Reactors: Often used for precise temperature control during separation and crystallisation.
- Glass-Lined Reactors: Used for larger-scale distillation to protect against highly corrosive acids and strong oxidizing agents.
- Teflon/Glass Systems: Used for solvent extraction, specifically with 106Ru, in a controlled lab setting to avoid contamination.
Key Processes in Separation
- Oxidation: Converting ruthenium to volatile in a nitric acid medium.
- Reduction/Precipitation: Using reducing agents like SiC or methanol in a controlled reactor environment to precipitate ruthenium and technetium.
- Solvent Extraction: Using specialized mixers to separate ruthenium from intermediate-level liquid waste, sometimes using Aliquat 336 and IDA.
- Ion Exchange: Passing solutions through specialized resin columns to isolate ruthenium.
Safety Considerations
Ruthenium tetroxide is highly toxic and volatile. Distillation in glass vessels is a common method, but it requires strict monitoring and safety measures to protect workers and control the release of the substance.
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Web results
Facile separation of ruthenium from fast reactor simulated ...
ScienceDirect.com
https://www.sciencedirect.com › article › abs › pii
ScienceDirect.com
https://www.sciencedirect.com › article › abs › pii
by GM Ponsakthi2025Cited by 1 — The current work highlights the feasibility of separating Ru from a fast-reactor simulated high-level liquid waste (FR-SHLLW) solution using ...Read more
US Client Customizes Ruthenium Trichloride Production ...
yangmaireactor.com
https://www.yangmaireactor.com › projects › us-client-c...
yangmaireactor.com
https://www.yangmaireactor.com › projects › us-client-c...
May 27, 2025 — An American fine chemical laboratory recently contacted YangMai via our independent website to customize a complete glass reactor system for ruthenium ...Read more
Separation of Radioactive Ruthenium from Alkaline Solution
ACS Publications
https://pubs.acs.org › doi
ACS Publications
https://pubs.acs.org › doi
Nov 25, 2022 — A solvent extraction-based technique has been utilized to study the separation of ruthenium from simulated alkaline solution using Aliquat ...
Method of separating and recovering ruthenium from high- ...
Google Patents
https://patents.google.com › patent
Google Patents
https://patents.google.com › patent
A method of recovering volatile ruthenium, which is separated and formed by constant potential electrolysis from high-level radioactive liquid waste.Read more
SELECTIVE PARTITIONING OF RUTHENIUM FROM ...
DOE OSTI (.gov)
https://www.osti.gov › servlets › purl
DOE OSTI (.gov)
https://www.osti.gov › servlets › purl
PDF
by JM Richards2017Cited by 31 — The simultaneous existence of a variety of ruthenium species complicates separations in nuclear fuel partitioning schemes since each species has a different ...Read more
Functionalized porous glass for the removal and ...
ScienceDirect.com
https://www.sciencedirect.com › article › abs › pii
ScienceDirect.com
https://www.sciencedirect.com › article › abs › pii
by A Tokarev2010Cited by 10 — Here we present an original approach in order to immobilize ruthenium species and to get their transform ion into RuO2 nanoparticles by using ...Read more
Redox behavior of ruthenium in nuclear glass melt
Archive ouverte HAL
https://cea.hal.science › ...
Archive ouverte HAL
https://cea.hal.science › ...
Among platinoid fission products, ruthenium is a key element during the vitrification of high-level waste because it is poorly soluble in the glass matrix.
Separation and recovery of ruthenium: a review
Harvard University
https://ui.adsabs.harvard.edu › abs › abstract
Harvard University
https://ui.adsabs.harvard.edu › abs › abstract
by P Swain2013Cited by 118 — The problem is very acute in the reprocessing of fast reactor fuels due to the increased concentration of ruthenium in the spent fuel. In nitric acid medium Ru ...Read more
Separation of technetium from ruthenium after the accelerator ...
Stanford University
https://searchworks.stanford.edu › view
Stanford University
https://searchworks.stanford.edu › view
Separation Processes. Ruthenium. Radioactive Waste Processing. Transmutation. Accelerators. Ion Exchange. Ozonization. Filtration. Magnetic Separators. Solvent ...Read more
Separating and Recovering Rhenium
YouTube · GIA (Gemological Institute of America)
1.2K+ views · 7 years ago
YouTube · GIA (Gemological Institute of America)
1.2K+ views · 7 years ago
We have to separate the rhenium from the sulfuric and from the chromic and we'll do that with an anion exchange resin or cation exchange resin.
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