[1L10-14] Fusion Reactor Materials 1

3:00 PM - 3:15 PM JST(6:00 AM - 6:15 AM UTC)

[1L11] Preparation of adsorbent for separation of lithium isotopes and chromatography experiments using adsorption column packed with the adsorbent

*Ibuki Aoshima¹, Koki Okada¹, Takahiko Sugiyama¹ (1. Nagoya Univ.)

Keywords:

lithium,separation of isotopes,chromatography,HETP

Chromatography is one of the isotope separation techniques for the high concentration of lithium-6 required for the fusion reactor blanket. The adsorbent used in this method has a large height equivalent to a theoretical plate (HETP), which makes the adsorption column necessary for the separation long and thus reduces the feasibility of the method. In this study, a phenolic resin containing the cyclic compound benzo15 crown 5 was synthesized in the pores of porous silica with an average particle size of 60 μm, and the HETP was shortened. A chromatography experiment was performed by passing a lithium solution through the adsorption column to form an adsorption zone, and the effluent was sampled to measure the isotope ratios. The value of 1.2 was obtained as separation factor.