Objective
Separation of long-lived actinides and fission products would reduce the radiotoxicity of Purex process high-level wastes. This would lower the costs and risks of final waste disposal
The aim of the work is to obtain distribution data, which are applicable to the development of a solvent extraction process for the separation of plutonium, neptunium, americium, curium and technetium from the highly active Purex waste solution (HAW). The target decontamination factors are 50000 for Am and Cm, 1000 for Pu and 100 for Np.
Application of solvent extraction for the treatment of highly radioactive materials is well developed. Existing knowledge of the chemistry and engineering of the method can serve as a starting point for the project work.
Separation of long lived actinides and fission products would reduce the radiotoxicity of Purex process high level wastes. This would lower the costs and risks of final waste disposal. The aim of is work is to develop the flowsheet of a solvent extraction process for the separation of plutonium, neptunium, americium, curium and technetium from the Purex wastes. Application of solvent extraction for treatment of highly radioactive materials is well developed. Existing knowledge of the chemistry and engineering of the method can serve as a starting point for the project work.
A report has been compiled which gives a critical survey of informations about the separation of long lived actinides and fission products from high level radioactive wastes. The experimental work was concentrated on the separation of transplutonides(III) from lanthanides(II). Less extensive was the investigation of the oxidation of neptunium(VI) before or during the extraction with tributyl phosphate (TBP).
Work programme:
Search for extractants or complexants which make it possible to separate transplutonides from fission lanthanides by solvent extraction.
Measurement of distribution and kinetic data for the elements to be separated and for lanthanides, and the working out of a proposal of a flowsheet.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- engineering and technology other engineering and technologies nuclear engineering nuclear waste management
- natural sciences physical sciences nuclear physics nuclear fission
- engineering and technology environmental engineering waste management
- natural sciences chemical sciences electrochemistry electrolysis
- natural sciences chemical sciences inorganic chemistry transition metals
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Programme(s)
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Multi-annual funding programmes that define the EU’s priorities for research and innovation.
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Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
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Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Coordinator
76133 Karlsruhe
Germany
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.