SEPARATION AND PURIFICATION TECHNOLOGY
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2025
·
IF 9
Zhentao Zhou,Shuchen Sun,Ganfeng Tu,Ziyan Yang,Faxin Xiao,Chengfu Sui,Kuopei Yu
With global demand for high performance materials continues to rise, the significance of beryllium as a critical material will become increasingly pronounced, making the stability of its resource supply a pressing concern. How to efficiently develop low-grade beryllium ore has become a key challenge for beryllium resource management. This study proposes an alkaline melting enhancement process to facilitate the efficient leaching of beryllium from low-grade beryllium ore. Experimental results demonstrate that the direct sulfuric acid curing leaching of beryl yields suboptimal results, with a maximum leaching efficiency of 33.5 %. At 1500 °C, Al 2 Be 3 Si 6 O 18 decomposes into Be 2 SiO 4 , Al 2 BeO 4 , and SiO 2 , resulting in a leaching efficiency increase to 61.67 %. Inadequate CaO addition during the alkaline melting process results in the formation of SiO 2 -Al 2 O 3 -CaO, SiO 2 , and partial BeO, while the remaining Be is included in the glass phase. The optimal conditions for the alkaline melting of beryl are 1300 °C for 2 h with a 35 % CaO addition. Under these conditions, the leaching efficiency of Be can reach 97.02 %. This method enables the efficient extraction of Be from low-grade beryllium ore, providing both theoretical support and technical guidance for the sustainable development and efficient utilization of beryllium resources.
研究领域:
材料科学
·
矿物工程
✓ 已验证
产品关联
DOI
高影响因子
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE
·
2017
·Vol. 643
·期 16
·1082-1087
·
IF 1.144
Chen Shen,Dajiang Mei,Chuanling Sun,Yunsheng Liu,Yuandong Wu
The selenites, Na 2 Be 3 (SeO 3 ) 4 · H 2 O and Cs 2 [Mg(H 2 O) 6 ] 3 (SeO 3 ) 4 , were synthesized under hydrothermal conditions. The crystal structures of Na 2 Be 3 (SeO 3 ) 4 · H 2 O and Cs 2 [Mg(H 2 O) 6 ] 3 (SeO 3 ) 4 were determined by single-crystal X-ray diffractions. Na 2 Be 3 (SeO 3 ) 4 · H 2 O crystallizes in the triclinic space group P 1 (no. 2) with unit cell parameters a = 4.8493(9), b = 12.013(2), c = 12.077(2) Å, and Z = 2, whereas Cs 2 [Mg(H 2 O) 6 ] 3 (SeO 3 ) 4 crystallizes in the monoclinic space group C 2/ m (no. 12) with lattice cell parameters a = 12.596(6), b = 7.297(4), c = 16.914(8) Å, and Z = 2. Na 2 Be 3 (SeO 3 ) 4 · H 2 O features a three-dimensional open framework structure formed by BeO 4 tetrahedra and SeO 3 trigonal pyramids. Na cations and H 2 O molecules are located in different tunnels. Cs 2 [Mg(H 2 O) 6 ] 3 (SeO 3 ) 4 has a structure composed of isolated [Mg(H 2 O) 6 ] octahedra and SeO 3 trigonal pyramids interacted by hydrogen bonds, and Cs cations are resided in-between. Both compounds were characterized by thermogravimetric analysis and FT-IR spectroscopy.
研究领域:
无机化学
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材料科学
✓ 已验证
DOI
高影响因子
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
·
2024
·
IF 5.9
Chen Li,Chuncai Zhou,Wenwen Li,Wenrui Zhu,Jiaqian Shi,Lei Wu,Guijian Liu
Coal fly ash (CFA) is a promising alternative source for critical elements. Most of the critical elements in CFA are associated with the aluminosilicate glassy phase , which hinders their ability to solubilize during acid leaching. In this study, critical elements (Li, Be, Rb, Sr, Zr, Nb, Cs, Hf, Ta, Ga, Ge, Se, Cd, and Tl) were recovered from CFA of Pingwei power plant in China by alkali fusion-organic acid leaching. The results showed that the leaching rate of critical elements after alkali fusion was higher than that of direct organic acid leaching. The leaching rate of total critical elements was 72.56% under the optimal conditions. Among them, the highest leaching rate of Li, Be and Ga was more than 90%, and the highest leaching rate of Ge, Se, Rb, Sr, Zr, Nb, Cd, Cs and Hf was 70%-90%. Characterization analysis revealed that the amorphous aluminosilicate and silica phases in the raw CFA were destroyed by alkali fusion, resulting in nepheline and soluble aluminosilicate phases which were easily dissolved by citric acid . This study provides theoretical basis and technical support for the extraction of critical elements from CFA.
研究领域:
环境科学
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材料科学
✓ 已验证
产品关联
DOI
高影响因子
COMPUTATIONAL MATERIALS SCIENCE
·
2025
·
IF 3.3
Yan Zhu,Jianke Tian,Yiwen Liu,Zhaocang Meng
Beryllium has been determined as one prospective neutron multiplier materials in nuclear fusion power plant. During the manufacturing of beryllium pebbles, impurities will be inevitably introduced into the beryllium matrix. However, the distribution of impurities in beryllium is lack of investigation. Consequently, in the present work, combined with experimental techniques and first-principles calculations, the solution and segregation behaviors of nonmetallic and metallic impurities in beryllium as well as the in-depth mechanism have been thoroughly investigated. The experimental observations have shown that the nonmetallic impurities of oxygen, carbon and silicon, the metallic impurities of iron, aluminium, magnesium, zinc, lead and copper could dissolve in bulk beryllium. The calculation results have shown that the solution energies of those impurity atoms is low except for that of lead. Furthermore, it has also been found experimentally that oxygen and iron could segregate at grain boundaries of beryllium. The segregation energy of oxygen and iron atoms at two grain boundaries of Σ 13 { 10 1 ̄ 1 } and Σ 11 { 10 1 ̄ 2 } are negative, which means that both oxygen and iron atoms have strong tendency to segregate at grain boundaries of beryllium. The results firmly demonstrate the observed phenomenon. The current work has contributed to a further understanding of the distribution of impurity atoms in beryllium, facilitating the manufacturing of beryllium pebbles.
研究领域:
材料科学
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核工程
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物理冶金学
✓ 已验证
产品关联
DOI
高影响因子
Toxicology Research
·
2024
·Vol. 13
·期 3
·
IF 2.2
Jin Huiyun,Liu Yanping,Lei Yuandi,Li Guilan,Huang Lian,Zhang Zhaohui
BackgroundChronic beryllium disease is characterized by granulomas and pulmonary fibrosis. Recent studies have shown that microRNAs (miRNAs) and circular RNAs (circRNAs) play critical roles in the pathogenesis and development of many diseases. However, the role of miRNAs and circRNAs in pulmonary fibrosis induced by beryllium sulfate (BeSO4) has not been elucidated.MethodsPrevious studies demonstrated hsa-miR-663b was down-regulated in the 150 μmol/L BeSO4-treated 16HBE cells, while hsa_circ_ 0004214 was up-regulated. Here we found epithelial-mesenchymal transition (EMT) involved in pulmonary fibrosis induced by BeSO4 (4, 8, and 12 mg/kg·BW) in SD rats.ResultsElevated expression of hsa-miR-663b blocked the EMT progression of 16HBE cells induced by 150 μmol/L BeSO4. Notably, the overexpression of hsa-miR-663b decreased the expression of leukemia inhibitory factor (LIF), which was predicted as a target gene of hsa-miR-663b by bioinformatics tools. Furthermore, elevated miR-663b inhibited the activation of the downstream Janus kinase-signal transducers and activators of transcription (JAK-STAT) signaling pathway induced by BeSO4 in 16HBE cells. Previous study suggested that hsa_circ_0004214 had binding sites for hsa-miR-663b. The results indicated hsa_circ_0004214 alleviated the BeSO4-induced EMT via JAK-STAT pathway in 16HBE cells.ConclusionsCollectively, the overexpression of hsa-miR-663b and knockdown of hsa_circ_0004214 attenuated the EMT induced by BeSO4 through the inhibition of JAK-STAT signaling pathway. The aberrant expressed hsa-miR-663b and hsa_circ_0004214 stimulated by BeSO4 may exert an important function in the toxic mechanism of beryllium exposure to 16HBE cells, providing the potential therapeutic targets in chronic beryllium disease.
研究领域:
分子生物学
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毒理学
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肺科学
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基因组学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
·
2019
·Vol. 322
·期 2
·597-604
·
IF 1.186
Wang Peiwen,Hu Eming,Wang Qingliang,Lei Zhiwu,Wang Hongqiang,Zhang Yan,Hou Wei,Zhang Rui
Both uranium and beryllium are very important strategic metals and have been applied to many fields, such as nuclear industries, atomic energy, metallurgical industries and telecommunications industries. When uranium and beryllium in the ore were leached simultaneously, a complicated downstream separation process was needed. Based on the different chemical stabilities of uranium and beryllium, an acid leaching method was employed in this work to selectively extract uranium from uranium–beryllium ore. The effects of sulfuric acid concentration, temperature, liquid–solid ratio and leaching time on the leaching efficiency were studied experimentally. Results indicated that treatment of the ores in 0.2 M sulfuric acid at 348.5 K for 50 min with the solid–liquid ratio of 0.25 g/mL is optimum. Under optimal conditions, the leaching efficiencies of uranium is 97.4% and the leaching efficiencies of beryllium is 1.78%, and the standard deviation of them are less than 2% and 0.06%, respectively. Results of kinetic study suggest that the leaching process of uranium was thermodynamically favorable and was controlled by the diffusion of the product layer, whereas the rate-determining step for beryllium leaching is the surface chemical reaction.
研究领域:
冶金学
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核能工程
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化学工程
✓ 已验证
DOI
高影响因子
Nuclear Materials and Energy
·
2021
·
IF 2.32
S. Krat,Yu. Gasparyan,Ya. Vasina,A. Prishvitsyn,G.De Temmerman,A. Pisarev
Available literature data for beryllium content in D-Be co-deposited layers was modeled using newly developed model. It was shown that the model adequately describes the experimental results. An empirical scaling for the available trap concentrations as a function of deuteron energy was introduced in order to improve the agreement between the experimental data and model predictions. The limited recombination rate describes the co-deposition better than the unlimited one. Assuming two types of traps in the film with detrapping energies of 0.8–0.9 and 1.2–1.3 eV and trap concentrations of 10 at. % and 1 at. %, respectively, and the deuterium implantation energy of 15.6 eV, the average relative deviation between experimental and predicted D/Be values of 1.9 was observed, which is better than the empirical D/Be scalings.
研究领域:
核物理学
·
材料科学
✓ 已验证
DOI
高影响因子
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
·
2024
·
IF 1.5
Xia Hongyang,Zheng Boyuan,Zhao Xu,Huang Yanting,Wang Hongqiang,Hu Eming,Lei Zhiwu,Hu Fang,Wang Qingliang
Uranium (U) and beryllium (Be) are strategic critical metals. It is imperative to realize the comprehensive utilization of U or Be poly-metallic resources. This study employed solvent extraction to separate and recover U and Be from a simulated acidic sulphate leachate from a U-Be associated ore. The results indicated that the mixture extractant system containing bis-(2-ethylhexyl) phosphoric acid (D2EHPA) and tributyl phosphate (TBP) had affinity for U, and the selectivity of U towards Be was dependent on the hydrogen ion concentration of the solution. 99.74% U and 6.98% Be were extracted with a two-stage counter-current extraction at sulfuric acid concentration of 1.58 mol/L. By using 2 mol/L Na 2 CO 3 solution as the stripping solution, 94.79% U was stripped from the U-loaded organic phase with a one-stage stripping process. After adjusting the pH of the raffinate to 2, with D2EHPA as extractant, 99.76% Be was recovered by performing a two-stage counter-current extraction. Besides, Be could be well stripped from the Be-loaded organic phase with 3 mol/L NaOH solution. And the stripping rate of Be reached 98.85% with a one-stage stripping process. The established method to separate U and Be from sulphate solutions with high acidity has several advantages, including recyclable, reliable, and environmentally friendliness, providing a promising new pathway for the green recovery of U and Be from poly-metallic resources.
研究领域:
化学工程
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冶金学
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环境科学
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2021
·
IF 13.273
Jie Xu,Sini Wang,Chenglong Yang,Tingting Li,Qiangchun Liu,Xiangkai Kong
To design and synthesize materials for alkaline hydrogen evolution is favorable for industrial hydrogen cycle operation. In this study, we present a facile approach to synthesize free-standing ruthenium-beryllium (RuBe) nanosheets, which possess amorphous phase state and associated with holey structures due to the molten method. The two-dimensional RuBe nanosheets exhibit improved activity than pure Ru counterpart and comparable properties to commercial Pt toward hydrogen evolution reaction in both of alkaline and neutral electrolytes. Based on the experiments and density functional theory calculations, it is suggested that the adsorption and dissociation of water molecules on Ru-based catalyst are much enhanced with the assistance of Be modulation, which are essential for the improved hydrogen production capability under alkaline condition. This work broadens the Ru-based catalyst family and may provide new insights for electrocatalyst development.
研究领域:
材料科学
·
电化学
·
催化
✓ 已验证
DOI
高影响因子
Journal of Materials Chemistry C
·
2018
·Vol. 6
·期 15
·4234-4242
·
IF 5.976
Junjie Qin,Bohua Dong,Lixin Cao,Wei Wang
Responsive photonic hydrogels functionalized with crown ether molecules containing the smallest cavities are designed for the detection of the smallest metal ion – beryllium ion (Be2+) – in seawater systems through the exploitation of the volume induced structural color change of non-close packed colloidal photonic crystals (CPCs), which are immobilized in the hydrogels. A new two-step versatile polymerization process has been developed to fabricate these intelligent hydrogel sensing materials. The CPCs in suspension are firstly embedded within a polyvinyl alcohol (PVA) hydrogel scaffold by a cryotropic gelation process, and then the ion-recognition functional groups are covalently bonded to an additional polyacrylamide hydrogel over the PVA via a photochemical reaction. After the removal of the PVA scaffold, the remaining hydrogel exhibits a vivid structural color on account of the diffraction of the photonic crystals in the visible spectral range, while the grafted benzo-9-crown-3 can strongly and selectively chelate with Be2+ ions in solution. The hydrogel sensor enables the detection of Be2+ ions quantitatively and achieves a detection of limit of 10−11 M in seawater. Through this design and fabrication method, a simple and low-cost sensor for the in situ monitoring of toxic ions or compounds in seawater has been demonstrated.
研究领域:
材料科学
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环境科学
·
化学传感器
✓ 已验证
产品关联
DOI
高影响因子
INORGANIC CHEMISTRY
·
2021
·
IF 5.165
Zhe Dai,Yi-Gang Chen,Yao Guo,Fang Wang,Yuan-Yu Yang,Xian-Ming Zhang
The design of material by chemical and/or crystalline modification of a classic structure model benefits not only the optimized physical properties but also the controllability and efficiency. Herein, a new nonlinear-optical (NLO) beryllium borate crystal, Sr2Pb(BeB5O10)(BO3) (SPBBO), is successfully designed and synthesized by chemical and crystalline modification of the perovskite-like K3B6O10Cl NLO crystal. SPBBO displays a 3D BeB5O103– open-framework structure composed of interconnecting BeB5O13 groups with filled cationic Sr/Pb and anionic BO3 groups, which exhibits the striking enhancement of the second-harmonic-generation (SHG) response (8 × KDP) and birefringence (0.10) compared to the parent model. Replacement of K by Sr and Pb with a lone pair and replacement of Cl by conjugated BO3 result in the synergistic conjugation of Pb with host BeB5O103– and filled BO3 groups, contributing to the striking enhancement of the SHG and birefringence. Single-crystal measurements show that SPBBO has a short UV absorption edge of 280 nm with a wide energy band gap of 4.35 eV and an outstanding laser-induced resistant behavior with a remarkably high laser-induced damage threshold of 2100 MW cm–2. The excellent properties indicate that the SPBBO crystal is a very promising UV NLO functional material.
研究领域:
材料科学
·
晶体学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Materials Chemistry C
·
2018
·Vol. 6
·期 15
·3910-3916
·
IF 5.976
Sangen Zhao,Yi Yang,Yaoguo Shen,Xiaodong Wang,Qingran Ding,Xianfeng Li,Yanqiang Li,Lina Li,Zheshuai Lin,Junhua Luo
Few nonlinear optical (NLO) materials are available for deep-UV second-harmonic generation (SHG), limited by the fundamental requirements of the structure-directing optical properties. KBe2BO3F2 is the sole exception, but it suffers from the high toxicity of the compositional beryllium element and a serious layering growth tendency. Here, we report a beryllium-free deep-UV NLO phosphate with honeycomb-like topological structural layers, namely, CsNaMgP2O7. The phosphate exhibits an enhanced SHG response of 1.1 times that of KH2PO4, which is comparable to that of KBe2BO3F2. Based on theoretical analysis, the enhanced SHG response can be well rationalized. Meanwhile, CsNaMgP2O7 possesses a reinforced interlayer bonding of about 2.95 times that of KBe2BO3F2, which is very favorable to mitigate the layering growth tendency. This work will be helpful to better understand the structure–property relationships in deep-UV NLO materials.
研究领域:
材料科学
·
光学
✓ 已验证
DOI
高影响因子
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