1986/08/01 by Masao Aida, Yasuhiko Fujii, Makoto Okamoto · 1 citation
Environmental Science · Medicine · #Chemical Synthesis and Characterization #Boron Compounds in Chemistry #Radiopharmaceutical Chemistry and Applications
paper · doi:10.1080/01496398608056140
openalex publication_date 1986/08/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/29
In order to enrich 10B isotope, a boron adsorption band was eluted 620 m in a reverse-breakthrough displacement manner. Thereafter the band was stopped for 10 days and then eluted again up to a total distance of 754 m. The rear boundary of the adsorption band was kept sharp throughout the elution. From monitoring of the isotope abundance during elution, the lighter isotope 10B was confirmed to be accumulated in the band end region. The maximum enrichment of 10B reached 98.43% (10B atomic fraction) at a migration distance of 620 m. The interruption in the operation caused no serious damage in isotope accumulation, but there was a slight broadening of the accumulation curve. The isotopic accumulation was examined based on theoretical equations previously proposed. The results indicate that the HETP of the system is constant, 1.8 mm, up to a migration distance of 620 m and increases slightly at the distance of 754 m. The separation coefficient shows a gradual decrease with an increase of migration distance: ε = 9 × 10−3 (at 200 m) and 7.8 × 10−3 (at 754 m).