43 research outputs found
New approach for physico-chemical control of sensible surfaces during transfer and storage between steps in microelectronic
No full textInternational audienc
Engineering a Biomimetic Biological Nanopore to Selectively Capture Folded Target Proteins
No full textQuasi in situ advanced characterizations for materials upfront studies and process development in microelectronicThe IMPACT Project : Merging academic research and industrial applications
No full textInternational audienc
The use of multilevel analysis for integrating single-case experimental design results within a study and across studies
No full textExperimental and modelling study of ruthenium extraction with tri-n-butylphosphate in the purex process
No full textInternational audienceRuthenium extraction by tri-n-butylphosphate (TBP) from nitric acid was studied and modelled in the conditions of the PUREX process. Experimental distribution ratios obtained for water, nitric acid and ruthenium were described with a physicochemical model based on the application of the mass action law on each extraction equilibrium and by taking into account deviations from thermodynamic ideal behaviour both in aqueous and organic phase using Mikulin and Sergievskii-Dannus equations. The best agreement between experimental and calculated ruthenium extraction isotherms was obtained by considering the formation of two complexes TBPRuNO (NO)(HO) and TBPRuNO (NO)(HO) ̅̅in organic phase. This model was implemented in the CEA-AREVA PAREX process simulation code and used to simulate ruthenium behaviour in a counter-current PUREX hot test performed in mixer-settlers
