Research on the purification of germanium residue by outfield enhancement

Di, Haokai; Gui, Qihao; Yang, Fangfang; Liang, Ming; Zeng, Hanlin; Yang, Kun; Zhang, Libo

doi:10.1016/j.cep.2020.108293

Cited by 18 publications

(1 citation statement)

References 33 publications

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“…In comparative experiments between conventional pickling (RP) and ultrasound-assisted pickling (UAP), UAP could accelerate the breaking of complex bonds and improve the removal efficiency of impurities [35]. The specific flowchart is shown in Figure 10a.…”

Section: By-products From the Lead And Zinc Industriesmentioning

confidence: 99%

The Extraction and Separation of Scarce Critical Metals: A Review of Gallium, Indium and Germanium Extraction and Separation from Solid Wastes

Huang,

Wang,

Liu

et al. 2024

Separations

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Gallium (Ga), indium (In), and germanium (Ge) play an important role in the modern high-tech material field. Due to their low content and scattered distribution in the crust, and the increasing demand for these metals in recent years, their supply risks have sharply increased. Therefore, the recycling of these metals is of great significance. In this work, a systematic review was performed using the Web of Science, Scopus, MDPI, Elsevier, and Springer Link databases. The combined terms used for the search were Ga/In/Ge, extraction, separation, and recycling. After a careful evaluation of the titles, abstracts, and full texts, a total of 106 articles were included. This paper briefly describes the resource features of Ga, In, and Ge. After that, the chemical principles, technical parameters, and metal recovery in various extraction and separation methods from monometallic and polymetallic resources are systematically reviewed. Leaching followed by solvent extraction or ion exchange is the main process for Ga, In, and Ge recovery. Although many attempts have been made to separate multiple metals from leaching solutions, highly selective solvents and resins are still the research priority. This review can provide theoretical and technical guidance for the separation of Ga, In, and Ge from various resources.

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Section: By-products From the Lead And Zinc Industriesmentioning

confidence: 99%

The Extraction and Separation of Scarce Critical Metals: A Review of Gallium, Indium and Germanium Extraction and Separation from Solid Wastes

Huang,

Wang,

Liu

et al. 2024

Separations

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Hydrogenated Germanene Nanosheets as an Antioxidative Defense Agent for Acute Kidney Injury Treatment

Chen

Qiu

et al. 2022

Advanced Science

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Acute kidney injury (AKI) is a sudden kidney dysfunction caused by aberrant reactive oxygen species (ROS) metabolism that results in high clinical mortality. The rapid development of ROS scavengers provides new opportunities for AKI treatment. Herein, the use of hydrogen‐terminated germanene (H‐germanene) nanosheets is reported as an antioxidative defense nanoplatform against AKI in mice. The simulation results show that 2D H‐germanene can effectively scavenge ROS through free radical adsorption and subsequent redox reactions. In particular, the H‐germanene exhibits high accumulation in injured kidneys, thereby offering a favorable opportunity for treating renal diseases. In the glycerol‐induced murine AKI model, H‐germanene delivers robust antioxidative protection against ROS attack to maintain normal kidney function indicators without negative influence in vivo. This positive in vivo antioxidative defense in living animals demonstrates that the present H‐germanene nanoplatform is a powerful antioxidant against AKI and various anti‐inflammatory diseases.

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Optimization of Zinc and Germanium Recovery Process from Zinc Oxide Dust by Response Surface Methodology

Xia

Zhang

et al. 2022

ChemistrySelect

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Based on the problems existing in the existing process, the ultrasonic field enhanced potassium dichromate atmospheric leaching of zinc and germanium in zinc oxide dust was studied, and three main factors (liquid‐solid ratio, leaching temperature and potassium dichromate concentration) were optimized by the Box‐Behnken design (BBD) model. XRD, ICP‐OES, EPMA and SEM results show that the occurrence state of Ge is highly correlated with ZnS. Promoting the dissolution of ZnS is the basis for improving the leaching rates of Zn and Ge. Finally, under the conditions of liquid‐solid ratio of 7 mL/g, leaching temperature of 90 °C and potassium dichromate concentration of 19.16 g/L, the leaching rates of zinc and germanium were 99.968 % and 90.395 %, respectively. The error between the prediction results of the quadratic model and the experimental results is small, and the correlation coefficients are greater than 0.99, indicating that the model is credible.

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Research on the purification of germanium residue by outfield enhancement

Cited by 18 publications

References 33 publications

The Extraction and Separation of Scarce Critical Metals: A Review of Gallium, Indium and Germanium Extraction and Separation from Solid Wastes

The Extraction and Separation of Scarce Critical Metals: A Review of Gallium, Indium and Germanium Extraction and Separation from Solid Wastes

Hydrogenated Germanene Nanosheets as an Antioxidative Defense Agent for Acute Kidney Injury Treatment

Optimization of Zinc and Germanium Recovery Process from Zinc Oxide Dust by Response Surface Methodology

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