Yujie FU, Tao YU, Jianhua YE. Energy-endowed kinetic chromatographic columns for rapid uranium extraction from seawater[J]. NUCLEAR TECHNIQUES, 2024, 47(2): 020603
- NUCLEAR TECHNIQUES
- Vol. 47, Issue 2, 020603 (2024)
Fig. 1. Development of energy endowed kinetic chromatographic column (a) Model drawing, (b) Physical drawing
Fig. 2. Schematic diagram of the pulsed liquid chromatography separation device
Fig. 3. Movement of uranyl ions inside the column
Fig. 4. Distribution of uranyl ions within the column at different pH
Fig. 5. Variation of uranium in the column with different carriers
Fig. 6. Effect of different temperatures on uranyl ions(a) Peak emergence time and peak time of uranium, (b) Variation of uranium in the column
Fig. 7. Movement of uranium in the column at different rotational speeds (a) Emergence time, (b) Peak time
Fig. 8. Movement of uranium in the chromatcolumn under different heating energy-endowed stages (a) Emergence time, (b) Peak time
Fig. 9. Ultrasonic energy endowed to the column(a) Local schematic of chromatographic column ultrasound, (b) Movement of uranium in the column
Fig. 10. Magnetic field energy endowed to the column (a) Local schematic of magnetic field energy endowed to the chromatographic column, (b) Movement of uranium inside the column
Fig. 11. Separation of uranium, europium, and sodium ions in mixed solutions at sample flow rates of (a) 2.027 mL·min-1, (b) 4.109 mL·min-1, (c) 5.814 mL·min-1
Fig. 12. Separation of mixed solutions of U, Eu, and Na ions at temperatures of (a) 40 ℃, (b) 50 ℃, (c) 60 ℃
Fig. 13. Separation of seawater samples at five levels(a) Uranium, (b) Sodium ions, (c) Ratio of uranium to sodium ion concentration
Fig. 14. Schematic diagram of the separation mechanism in the column
Fig. 15. Schematic of the motion states of different ions within the two types of columns
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Table 1. Interaction forces between uranyl ions and packing materials at different injection flow rates
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