An original strategy and evaluation of a reaction mechanism for recovering valuable metals from zinc oxide dust containing intractable germanide

Xu, Yingjie; Xia, Hongying; Zhang, Qi; Zhang, Libo

doi:10.1016/j.jhazmat.2024.133766

Cited by 8 publications

(2 citation statements)

References 46 publications

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“…A three-step procedure (leaching-roasting-leaching) of a zinc oxide dust to recover germanium is investigated [13]. Firstly, the dust is leached under sonication and oxidation (potassium permanganate) conditions in order to improve the solubilization of oxidized and sulfide phases:…”

Section: Leachingmentioning

confidence: 99%

Some Recent Advances in Germanium Recovery from Various Resources

Alguacil,

Robla

2024

Metals

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Though nowadays germanium does not reach the range of popularity of other metals, i.e., rare earth elements, its utility in target industries makes it a strategic metal. Though germanium can be found in a series of raw materials, the principal source for its recovery is from secondary wastes of the zinc industry; also, the recyclability of germanium-bearing waste materials is becoming of interest. In this recovery and due to the size of the target materials, because the diffusion and reaction are to be considered, hydrometallurgy performs a key role in achieving this goal. The present work reviews the most recent applications (2023 and 2024 years) of hydrometallurgical operations on the recovery of germanium from different solid and liquid sources.

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Section: Leachingmentioning

confidence: 99%

Some Recent Advances in Germanium Recovery from Various Resources

Alguacil,

Robla

2024

Metals

View full text Add to dashboard Cite

show abstract

“…A three steps procedure (leaching-roasting and leaching) of a zinc oxide dust to recover germanium is investigated [10]. Firstly, the dust is leach under sonication and oxidation (potassium permanganate) conditions in order to improve the solubilization of sulphide phases.…”

Section: Leachingmentioning

confidence: 99%

Some Recent Advances on Germanium Recovery from Various Resources

Alguacil,

Robla

2024

Preprint

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Though nowadays germanium do not reach the range of popularity than other metals, i.e. rare earth elements, its utility in target industries makes of it also a strategic metal. Though germanium can be find in a series of raw materials, the principal source for its recovery is from secondary wastes of the zinc industry, and also, the recycle of germanium-bearing waste materials is becoming of interest. In this recovery, Hydrometallurgy is performing a key role to the successful achievement of this goal. The present work reviews the most recent applications (2023 and 2024 years) of hydrometallurgical operations on the recovery of germanium from different solid and liquid sources.

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Progress of research on aroma absorption mechanism and aroma fixation pathway of jasmine green tea

Wang,

Huang,

Zhou

et al. 2024

J Sci Food Agric

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This overview summarizes the latest research progress on the aroma absorption mechanism and aroma fixation pathway of jasmine green tea, and discusses in depth the aroma absorption mechanism of green tea, the aroma release mechanism of jasmine flowers, as well as the absorption and fixation mechanism of the aroma components of jasmine green tea in the process of scenting, to provide a theoretical basis for the improvement of the quality of jasmine green tea and the innovation of processing technology. It was found that the aroma absorption mechanism of jasmine green tea is mainly associated with both physical and chemical adsorption, aroma release in jasmine involves the phenylpropanoid/benzoin biosynthetic pathway, β‐glycosidase enzymes interpreting putative glycosidic groups, and heat shock proteins (HSPs) as molecular chaperones to prevent stress damage in postharvest flowers due to high temperatures and to promote the release of aroma components, and so forth. The preparation of aroma‐protein nano‐complexes, heat stress microcapsules, and the spraying of polymeric substances – β‐cyclodextrin are three examples of aroma‐fixing pathways. This overview also summarizes the problems and future development trends of the current research and proposes the method of loading benzyl acetate, the main aroma component of jasmine, through konjac glucomannan (KGM)‐based gel to solve the problem of volatile aroma and difficult‐to‐fix aroma, which provides a reference for the sustainable development of the jasmine green tea industry. © 2024 Society of Chemical Industry.

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An original strategy and evaluation of a reaction mechanism for recovering valuable metals from zinc oxide dust containing intractable germanide

Cited by 8 publications

References 46 publications

Some Recent Advances in Germanium Recovery from Various Resources

Some Recent Advances in Germanium Recovery from Various Resources

Some Recent Advances on Germanium Recovery from Various Resources

Progress of research on aroma absorption mechanism and aroma fixation pathway of jasmine green tea

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