[1N01-05] Lithium Isotope Separation

10:00 AM - 10:15 AM JST(1:00 AM - 1:15 AM UTC)

[1N01] Li-7 Enrichment Technology Development by MCCCE Method(7) Current Status of Technology Development

*Makoto Hasegawa¹, Mai Fukumori¹, Tetsuya Odagiri¹, Takashi Tsunada², Kenya Tanaka², Takayo Muramatsu³, Tadafumi Kishimoto⁴ (1. ATOX, 2. PESCO, 3. TEC, 4. Osaka Univ.)

Keywords:

MCCCE,Li-7,PWR,Russia

The pH of PWR primary cooling water is adjusted using LiOH, to remove Li-6 and to enrich Li-7 thoroughly due to exposure management to radiation.Russia is only supplier of Li-7 in the world. However, this has a security issue from Ukraine problem too. And also, the mercury amalgamation method using mercury has an environmental challenge. To avoid such risks, a domestic supply system that takes these aspects into account is necessary.We focused on the multi-channel counter-current electrophoresis (MCCCE) method as a new enrichment technique taking the place of working methods. This method is enriched by combining the capillary and counter-current methods of electrophoresis. An overview of the development of Li-7 enrichment by this method is presented.