[1D07-11] Recovery of Minor Actinides

[1D11] Hybrid Process Combining Solvent Extraction and Low Pressure Loss Extraction Chromatography for a Reasonable MA Recovery

(16) Flowsheet Design & Evaluation

*Yuichi Sano¹, Tsuyoshi Arai², Kiyoharu Nakatani³, Haruaki Matsuura⁴, Shigeru Kunii⁵ (1. JAEA, 2. Shibaura Inst. of Tech., 3. Univ. of Tsukuba, 4. TCU, 5. Chemicrea)

Keywords:minor actinides, solvent extraction, extraction chromatography, TBP, HONTA

A MA(III)+Ln(III) co-recovery flowsheet by solvent extraction using TBP and a MA(III)/Ln(III) separation flowsheet by simulated moving bed (SMB) chromatography using HONTA impregnated adsorbent with a large particle size porous silica support that enables low pressure drop operation were designed. The proposed process was confirmed to have advantages in terms of waste generation, safety, and economics compared to previously proposed processes consisting only of solvent extraction or extraction chromatography.