Study on the condensation behavior of the key metal fluorides in molten salts during low-pressure distillation

Yuting HUO; Yan LUO; Haifei XIANG; Qiang DOU; Jie MA; Hongmeng WENG; Qingnuan LI

doi:10.11889/j.0253-3219.2024.hjs.47.010301

NUCLEAR TECHNIQUES, Volume. 47, Issue 1, 010301(2024)

Study on the condensation behavior of the key metal fluorides in molten salts during low-pressure distillation

Yuting HUO², Yan LUO^1,3, Haifei XIANG⁴, Qiang DOU^1,3, Jie MA², Hongmeng WENG^5、*, and Qingnuan LI^1,3

Author Affiliations

¹Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China

²University of Shanghai for Science and Technology, Shanghai 200093, China

³University of Chinese Academy of Sciences, Beijing 100049, China

⁴East China Jiaotong University, Nanchang 330006, China

⁵Xinjiang Nonferrous Metal Research Institute, Urumqi 830000, China

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Figures & Tables(8)

Fig. 1. Experimental equipment photographs(a) Nickel foil ring inside quartz tube, (b) Customized basket

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Fig. 2. Height (a) and temperature (b) distribution of nickel foil in quartz tube

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Fig. 3. Regional distribution of various nuclides under different temperature conditions (a) ²³³Pa, (b) ²³⁷U, (c) ⁹⁵Zr, (d) ⁹⁵Nb

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Table 1. Radioactivity distribution of ²³³Pa and other key nuclides at 700 °C (Bq)
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Table 1. Radioactivity distribution of ²³³Pa and other key nuclides at 700 °C (Bq)
区段 Region ²³³Pa ²³⁷U ⁹⁵Zr ⁹⁵Nb
初始值 Initial value 320.4 1 179 33.97 11.31
Ni-1 4.16 0.1 0.3 2.21
Ni-2 16.3 1.6 0 2.24
Ni-3 38.5 0.45 0.054 1.16
Ni-4 0 0.45 0 0.047
Ni-5 0.07 0 0.175 0

Table 2. Radioactivity distribution of ²³³Pa and other key nuclides at 800 °C (Bq)
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Table 2. Radioactivity distribution of ²³³Pa and other key nuclides at 800 °C (Bq)
区段 Region ²³³Pa ²³⁷U ⁹⁵Zr ⁹⁵Nb
初始值 Initial value 293 1 164 36.78 13.68
Ni-1 11 0.23 0.18 0.84
Ni-2 7.8 0.093 0.19 7.1
Ni-3 249.6 5.56 0.28 2.9
Ni-4 3.2 5.77 4.34 0.04
Ni-5 0.4 1.25 0.81 0.05

Table 3. Radioactivity distribution of ²³³Pa and other key nuclides at 900 °C (Bq)
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Table 3. Radioactivity distribution of ²³³Pa and other key nuclides at 900 °C (Bq)
区段 Region ²³³Pa ²³⁷U ⁹⁵Zr ⁹⁵Nb
初始值 Initial value 151.5 91.86 28.03 21.58
Ni-1 1.5 0 0 0.3
Ni-2 3.8 0.13 0.48 0.23
Ni-3 139 0.49 1.22 12.35
Ni-4 3.8 0 3.26 0.26
Ni-5 0.4 3.39 8.53 1.3

Table 4. Separation coefficient of ²³³PaF₅ and Ni-3 nuclides at 8 Pa, 800 °C
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Table 4. Separation coefficient of ²³³PaF₅ and Ni-3 nuclides at 8 Pa, 800 °C
项目Item ²³³Pa ²³⁷U ⁹⁵Zr ⁹⁵Nb
原料中量 Activity in raw salts 293 1 164 36 13
蒸发总量 Activity in evaporation 272 12.903 5.8 8.3
Ni-3段收集量 Activity in Ni-3 249.6 5.56 0.28 6.9
β_A — 83 5 1.4
β_B — 178 109 1.6

Table 5. Separation coefficient of ²³³PaF₅ and Ni-3 nuclides at 8 Pa, 900 °C
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Table 5. Separation coefficient of ²³³PaF₅ and Ni-3 nuclides at 8 Pa, 900 °C
项目Item ²³³Pa ²³⁷U ⁹⁵Zr ⁹⁵Nb
原料中量 Activity in raw salts 151 92 28 22
蒸发总量 Activity in evaporation 148.5 4.01 13.49 14.44
Ni-3段收集量 Activity in Ni-3 139 0.49 1.22 12.35
β_B — 22 2 1.4
β_A — 172 21 1.6

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Yuting HUO, Yan LUO, Haifei XIANG, Qiang DOU, Jie MA, Hongmeng WENG, Qingnuan LI. Study on the condensation behavior of the key metal fluorides in molten salts during low-pressure distillation[J]. NUCLEAR TECHNIQUES, 2024, 47(1): 010301

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Paper Information

Category: Research Articles

Received: Jan. 23, 2023

Accepted: --

Published Online: Mar. 7, 2024

The Author Email: WENG Hongmeng (翁鸿蒙)

DOI:10.11889/j.0253-3219.2024.hjs.47.010301

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. Radioactivity distribution of 233Pa and other key nuclides at 700 °C (Bq)

Table 1. Radioactivity distribution of 233Pa and other key nuclides at 700 °C (Bq)

Table 2. Radioactivity distribution of 233Pa and other key nuclides at 800 °C (Bq)

Table 2. Radioactivity distribution of 233Pa and other key nuclides at 800 °C (Bq)

Table 3. Radioactivity distribution of 233Pa and other key nuclides at 900 °C (Bq)

Table 3. Radioactivity distribution of 233Pa and other key nuclides at 900 °C (Bq)

Table 4. Separation coefficient of 233PaF5 and Ni-3 nuclides at 8 Pa, 800 °C

Table 4. Separation coefficient of 233PaF5 and Ni-3 nuclides at 8 Pa, 800 °C

Table 5. Separation coefficient of 233PaF5 and Ni-3 nuclides at 8 Pa, 900 °C

Table 5. Separation coefficient of 233PaF5 and Ni-3 nuclides at 8 Pa, 900 °C

Table 1. Radioactivity distribution of ²³³Pa and other key nuclides at 700 °C (Bq)

Table 1. Radioactivity distribution of ²³³Pa and other key nuclides at 700 °C (Bq)

Table 2. Radioactivity distribution of ²³³Pa and other key nuclides at 800 °C (Bq)

Table 2. Radioactivity distribution of ²³³Pa and other key nuclides at 800 °C (Bq)

Table 3. Radioactivity distribution of ²³³Pa and other key nuclides at 900 °C (Bq)

Table 3. Radioactivity distribution of ²³³Pa and other key nuclides at 900 °C (Bq)

Table 4. Separation coefficient of ²³³PaF₅ and Ni-3 nuclides at 8 Pa, 800 °C

Table 4. Separation coefficient of ²³³PaF₅ and Ni-3 nuclides at 8 Pa, 800 °C

Table 5. Separation coefficient of ²³³PaF₅ and Ni-3 nuclides at 8 Pa, 900 °C

Table 5. Separation coefficient of ²³³PaF₅ and Ni-3 nuclides at 8 Pa, 900 °C