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Process Modeling of Boron Isotopes Separation by Cross-Current and Counter-Current Solvent Extraction

文献类型：期刊论文

作者Li, Zheng1; Tan, Boren2; Zhang, Qian1; Wang, Yong2; Yang, Liangrong1
刊名INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
出版日期2022-12-05
页码6
ISSN号0888-5885
DOI10.1021/acs.iecr.2c03651
英文摘要Boron has two stable isotopes, namely,10B and 11B, which play important roles in the nuclear industry due to their excellent neutron absorption (10B) and neutron transmission (11B) properties, respectively. Nevertheless, the separation of the two isotopes is extremely difficult because of their very similar chemical properties. The traditional separation method based on the chemical-exchange rectification of BF3 and ethers is highly corrosive and requires expensive equipment. The separation based on solvent extraction (SX) of boric acid is potentially a greener alternative. Here we present the process modeling of SX separation of boron isotopes. The effects of separation factor, extraction ratio, and extraction stages on the purity and yield of boron isotopes have been discussed in detail. In the cross-current SX, the enrichment of isotopes increases linearly with increasing extraction stages, while the yield decreases exponentially, consequently the separation of the isotopes is not possible. In the counter-current SX, the enrichment of the isotope increases with increasing extraction stages, and the yield is >1 - EY (EY is the extraction ratio of the less extractable isotope). Assuming the separation factor beta = 1.02, 11B and 10B can be enriched to be >95% in about 200 and 500 extraction stages, respectively. The higher the separation factor, the faster enrichment and the higher yield. Therefore, future research should focus on increasing the separation factor and on the precise control of hundreds of extraction stages.
WOS关键词ENRICHMENT ; EXCHANGE ; B-10
资助项目National Natural Science Foundation of China[22278407] ; National Natural Science Foundation of China[21922814] ; National Natural Science Foundation of China[22138012] ; National Natural Science Foundation of China[22178349] ; CAS Project for Young Scientists in Basic Research[YSBR-038] ; National Natural Science Fund for Excellent Young Scientists Fund Program (Overseas) ; Ministry of Science and Technology of China[2021YFC2901500] ; Excellent Member in Youth Innovation Promotion Association, Chinese Academy of Sciences[Y202014]
WOS研究方向Engineering
语种英语
出版者AMER CHEMICAL SOC
WOS记录号WOS:000893139500001
资助机构National Natural Science Foundation of China ; CAS Project for Young Scientists in Basic Research ; National Natural Science Fund for Excellent Young Scientists Fund Program (Overseas) ; Ministry of Science and Technology of China ; Excellent Member in Youth Innovation Promotion Association, Chinese Academy of Sciences
源URL[http://ir.ipe.ac.cn/handle/122111/55989]  
专题中国科学院过程工程研究所
通讯作者Li, Zheng
作者单位1.Chinese Acad Sci, Inst Proc Engn, CAS Key Lab Green Proc & Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Natl Engn Res Ctr Green Recycling Strateg Met Reso, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714		 Li, Zheng,Tan, Boren,Zhang, Qian,et al. Process Modeling of Boron Isotopes Separation by Cross-Current and Counter-Current Solvent Extraction[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2022:6.
APA Li, Zheng,Tan, Boren,Zhang, Qian,Wang, Yong,&Yang, Liangrong.(2022).Process Modeling of Boron Isotopes Separation by Cross-Current and Counter-Current Solvent Extraction.INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,6.
MLA Li, Zheng,et al."Process Modeling of Boron Isotopes Separation by Cross-Current and Counter-Current Solvent Extraction".INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH (2022):6.

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来源：过程工程研究所

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