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DOE OSTI · 3409772

Novel Method for Domestic Stable Isotope Production (CRADA #667) Final Report

McDonald, Mark N. [Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)]·Saavedra Lopez, Johnny [Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)] (ORCID:0000000275425826)·Humble, Paul H. [Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)]·Salalila, Marsobyn L. [Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)]·Horkley, Lawrence Kenny [Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)]·McNeff, Patrick S. [Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)]·Serkowski, Jason E. [Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)]·Schlieder, Tyler D. [Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)]·Bottenus, Daniel R. [Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)] (ORCID:000000024230354X)
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Abstract

This report presents the progress achieved on our chlorine isotope separation efforts in the CRADA #667 agreement. We used a microchannel distillation (MCD) packing structure to enrich HCl isotopes (H35Cl, H37Cl) and an isotachophoresis (ITP) separation to enrich ionic chloride species (35Cl- and 37Cl-). A 2 m tall MCD column was constructed and achieved 264 separation stages over several days, which is well above the goal of 50 stages outlined in the CRADA. The resulting height equivalent to a theoretical plate (HETP) was 0.76 cm. ITP tests were run ~ 24 hours and achieved a single-stage separation factor of 1.559.

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McDonald, Mark N. [Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)], Saavedra Lopez, Johnny [Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)] (ORCID:0000000275425826), Humble, Paul H. [Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)], Salalila, Marsobyn L. [Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)], Horkley, Lawrence Kenny [Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)], McNeff, Patrick S. [Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)], Serkowski, Jason E. [Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)], Schlieder, Tyler D. [Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)], Bottenus, Daniel R. [Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)] (ORCID:000000024230354X). 2026-08-13. Novel Method for Domestic Stable Isotope Production (CRADA #667) Final Report. https://doi.org/10.2172/3409772

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