CAS OpenIR
Recovery of boron from brines with high magnesium content by solvent extraction using aliphatic alcohol
Xu, Zhenya1,2,3; Su, Hui2,3; Zhang, Jian2,3; Liu, Wensen2,3,4; Zhu, Zhaowu2,3; Wang, Jinggang1; Chen, Jing5; Qi, Tao2,3
2021-05-08
Source PublicationRSC ADVANCES
Volume11Issue:26Pages:16096-16105
AbstractThe recovery of boron from salt lake brines has become an effective way to meet the increasing demand, particularly in China. In this study, nine commercially available monohydric alcohols with different structures were selected for boron extraction from a salt lake brine with high magnesium content. Passing through the optimization, isodecanol was finally selected for the detailed study on boron recovery from brine due to its moderate viscosity, lower solubility water entrainment and high extraction efficiency. Parameter effects on boron extraction were systematically studied, including equilibrium pH, organic concentration, phase ratio, temperature, and salting-out effect. A McCabe-Thiele diagram was established to determine the boron extraction and stripping stages. An organic solution containing 2.5 mol L-1 isodecanol was used for a simulated three-stage counter-current extraction test under optimized extraction conditions, and the boron extraction reached 99.07%. A simulated four-stage counter-current stripping test was carried out with water with the stripping efficiency of 98.71%. In total the boron recovery reached 97.79%. Additionally, the mechanism of boron extraction by isodecanol was investigated using both slope analysis method and Fourier transform infrared spectroscopy (FTIR). The stoichiometric ratio of isodecanol to boron required to form boric acid ester was found to be 1.268. These results indicate that the extraction system has great potential for commercial application in boron recovery from salt lake brines with high magnesium content.
DOI10.1039/d1ra01906f
Language英语
WOS KeywordWASTE-WATER ; BORIC-ACID ; REMOVAL ; PRECIPITATION ; SEPARATION ; ALICY
Funding ProjectNational Natural Science Foundation of China[51774260] ; Beijing Natural Science Foundation[2202053] ; autonomic deployment project of Innovation Academy for Green Manufacture, Chinese Academy of Sciences[IAGM-2019-A15] ; Key Research Program of Frontier Sciences of Chinese Academy of Sciences[QYZDJ-SSW-JSC021] ; CAS Interdisciplinary Innovation Team
WOS Research AreaChemistry
WOS SubjectChemistry, Multidisciplinary
Funding OrganizationNational Natural Science Foundation of China ; Beijing Natural Science Foundation ; autonomic deployment project of Innovation Academy for Green Manufacture, Chinese Academy of Sciences ; Key Research Program of Frontier Sciences of Chinese Academy of Sciences ; CAS Interdisciplinary Innovation Team
WOS IDWOS:000649193500062
PublisherROYAL SOC CHEMISTRY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/48933
Collection中国科学院过程工程研究所
Corresponding AuthorZhu, Zhaowu
Affiliation1.Beijing Univ Chem Technol, Coll Chem Engn, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Natl Engn Lab Hydromet Cleaner Prod Technol, Inst Proc Engn, Beijing 100190, Peoples R China
3.Chinese Acad Sci, Innovat Acad Green Manufacture, Beijing 100190, Peoples R China
4.China Univ Min & Technol Beijing, Coll Chem & Environm Engn, Beijing 100083, Peoples R China
5.Tsinghua Univ, Inst Nucl & New Energy Technol, Beijing 100084, Peoples R China
Recommended Citation
GB/T 7714
Xu, Zhenya,Su, Hui,Zhang, Jian,et al. Recovery of boron from brines with high magnesium content by solvent extraction using aliphatic alcohol[J]. RSC ADVANCES,2021,11(26):16096-16105.
APA Xu, Zhenya.,Su, Hui.,Zhang, Jian.,Liu, Wensen.,Zhu, Zhaowu.,...&Qi, Tao.(2021).Recovery of boron from brines with high magnesium content by solvent extraction using aliphatic alcohol.RSC ADVANCES,11(26),16096-16105.
MLA Xu, Zhenya,et al."Recovery of boron from brines with high magnesium content by solvent extraction using aliphatic alcohol".RSC ADVANCES 11.26(2021):16096-16105.
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