Preparation of Al–Hf master alloy by aluminothermic reduction of HfO2

Liu, Hai; Ma, Zhaohui; Huang, Jingcun; Zhang, Jiandong; Yan, Guoqing; Wang, Lijun

doi:10.1007/s12598-020-01572-5

Cited by 4 publications

(4 citation statements)

References 26 publications

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“…So we have isolated a water-soluble baicalin from the aqueous decoction (without adding acid) of Scutellaria baicalensis , namely, baicalin magnesium, consisting of two molecules of baicalin and one molecule of magnesium ions, as illustrated in Fig. 1 [ 10 ]. The solubility of baicalin magnesium (200 mg/ml) was more than 3000 times that of baicalin (0.058 mg/ml).…”

Section: Introductionmentioning

confidence: 99%

Protective effects of baicalin magnesium on non-alcoholic steatohepatitis rats are based on inhibiting NLRP3/Caspase-1/IL-1β signaling pathway

Guan

Shi-yuan

Liu

et al. 2023

BMC Complement Med Ther

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Baicalin magnesium is a water-soluble compound isolated from the aqueous solution by Scutellaria baicalensis Georgi. Preliminary experiments have demonstrated that baicalin magnesium can exert protective effects against acute liver injury in rats induced by carbon tetrachloride or lipopolysaccharide combined with d-galactose by regulating lipid peroxidation and oxidative stress. The aim of this study was to investigate the protective effect of baicalin magnesium on non-alcoholic steatohepatitis (NASH) in rats and to elucidate the underlying mechanisms. NASH was induced through a high-fat diet (HFD) for 8 weeks, and Sprague-Dawley rats were intravenously injected with baicalin magnesium, baicalin, and magnesium sulfate for 2 weeks, respectively. Serum was obtained for biochemical analyses and the determination of oxidative stress indicators. Liver tissues were collected for use in liver index assessment, histopathological examination, inflammatory factor analysis, and protein and gene expression analysis. The results revealed that baicalin magnesium markedly improved HFD-induced lipid deposition, inflammatory response, oxidative stress, and histopathological impairments. And baicalin magnesium may exert a protective effect on NASH rats by inhibiting the NLR family pyrin domain involving the 3 (NLRP3)/caspase-1/interleukin (IL)-1β inflammatory pathway. Additionally, the effect of baicalin magnesium was remarkably superior to that of equimolar baicalin and magnesium sulfate in regard to ameliorating NASH symptoms. In conclusion, the findings suggested that baicalin magnesium may represent a potential drug for the treatment of NASH.

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Section: Introductionmentioning

confidence: 99%

Protective effects of baicalin magnesium on non-alcoholic steatohepatitis rats are based on inhibiting NLRP3/Caspase-1/IL-1β signaling pathway

Guan

Shi-yuan

Liu

et al. 2023

BMC Complement Med Ther

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“…Zirconium and hafnium have excellent corrosion resistance, mechanical properties, and nuclear properties, and they are important structural and functional materials for nuclear reactors [ 1 , 2 , 3 ]. The preparation methods of zirconium and hafnium mainly include the Kroll method, the molten salt electrolysis method, and the metal thermal reduction method [ 4 , 5 , 6 , 7 ]. The purification methods include the molten salt electrolytic refining method, the iodization method, and the electron beam melting method [ 8 , 9 ].…”

Section: Introductionmentioning

confidence: 99%

Preparation and Application of a NaCl-KCl-CsCl-Cs2ZrCl6 Composite Electrolyte

Zou

Wang

et al. 2023

Materials

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Using ternary molten salt with a molar ratio of NaCl:KCl:CsCl = 30:24.5:45.5 and ZrCl4 as raw materials to prepare a NaCl-KCl-CsCl-Cs2ZrCl6 composite electrolyte. Characterizing by XRD, ICP-AES, optical microscopy and SEM-EDS, the results showed that when the molar ratio of CsCl:ZrCl4 ≥ 2:1, Cs2ZrCl6 was generated according to the stoichiometric reaction; when the molar ratio of CsCl:ZrCl4 < 2:1, CsCl in molten salt was almost completely converted to Cs2ZrCl6, and there was a ZrCl4 phase. When the molar ratio of CsCl:ZrCl4 = 2:1, with the increase of the reaction temperature and reaction time, the concentration of zirconium ions first increased and then decreased. The optimized preparation process conditions are: the 2:1 molar ratio of CsCl to ZrCl4 in NaCl-KCl-CsCl, 500 °C of reaction temperature of and 3 h of reaction time. Under this condition, 99.68% conversion rate from ZrCl4 to Cs2ZrCl6 was obtained. Taking the prepared NaCl-KCl-CsCl-Cs2ZrCl6 composite electrolyte as a raw material, a preliminary study of molten salt electrolytic refining zirconium was carried out, and a refined zirconium product with a dendrite of 10.61 mm was obtained under the conditions of a zirconium ions concentration of 5%, an electrolysis temperature of 750 °C, a current density of 0.1 A/cm2, and an electrolysis time of 9 h, indicating that the composite electrolyte can be used for the electrolytic refining of zirconium.

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“…The molten salt electrolytic refining method is one of the main methods of metal zirconium purification; the molten salt electrolyte systems mainly include the fluoride system, fluoride-chloride system and chloride system [1][2][3]. In the fluoride system, Kipouros et al [4] and Groult et al [5] use LiF-NaF-ZrF4 molten salt system, Park et al [6] use LiF-KF-ZrF4 molten salt system, which successfully prepared powdered zirconium products by the electrolytic refining process.…”

Section: Introductionmentioning

confidence: 99%

Study on preparation and application of NaCl-KCl-CsCl-Cs₂ZrCl₆ composite electrolyte

Zou

Wang

2023

J. Phys.: Conf. Ser.

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Preparing zirconium chloride composite salts such as Cs2ZrCl6 can replace highly volatile ZrCl4 for studying molten salt electrolytic refining zirconium. The NaCl-KCl-CsCl-Cs2ZrCl6 composite electrolyte was prepared using ternary molten salt with a molar ratio of NaCl: KCl: CsCl=30: 24.5: 45.5 and ZrCl4 as raw materials. According to thermodynamic analysis, ZrCl4 preferentially reacts with CsCl to form Cs2ZrCl6 with strong stability. X-ray diffraction analysis showed that the main phase of the product was Cs2ZrCl6. ICP-DSC analysis showed that the conversion rate of ZrCl4 to Cs2ZrCl6 reached 99.68%. To verify the properties of this electrolyte, it is applied to molten salt electrolytic refining sponge zirconium. Studies have shown that this electrolyte system obtains dendrite zirconium products with a maximum grain size of 6.29mm, a system with more application prospects.

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Preparation of Al–Hf master alloy by aluminothermic reduction of HfO2

Cited by 4 publications

References 26 publications

Protective effects of baicalin magnesium on non-alcoholic steatohepatitis rats are based on inhibiting NLRP3/Caspase-1/IL-1β signaling pathway

Protective effects of baicalin magnesium on non-alcoholic steatohepatitis rats are based on inhibiting NLRP3/Caspase-1/IL-1β signaling pathway

Preparation and Application of a NaCl-KCl-CsCl-Cs2ZrCl6 Composite Electrolyte

Study on preparation and application of NaCl-KCl-CsCl-Cs₂ZrCl₆ composite electrolyte

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Preparation of Al–Hf master alloy by aluminothermic reduction of HfO2

Cited by 4 publications

References 26 publications

Protective effects of baicalin magnesium on non-alcoholic steatohepatitis rats are based on inhibiting NLRP3/Caspase-1/IL-1β signaling pathway

Protective effects of baicalin magnesium on non-alcoholic steatohepatitis rats are based on inhibiting NLRP3/Caspase-1/IL-1β signaling pathway

Preparation and Application of a NaCl-KCl-CsCl-Cs2ZrCl6 Composite Electrolyte

Study on preparation and application of NaCl-KCl-CsCl-Cs2ZrCl6 composite electrolyte

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Study on preparation and application of NaCl-KCl-CsCl-Cs₂ZrCl₆ composite electrolyte