Pressure hydrometallurgy: A new chance to non-polluting processes
Vojnotehnički Glasnik, 2011 A wide spectrum of hydrometallurgical processes offers many promising approaches for industrial application in order to improve the environmental impact of conventional metals productions, or for replacing hydrometallurgical processes whose gas emissions
Srećko R. Stopić, Bernd G. Friedrich
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Environmentally Friendly Recovery of Lithium from Lithium–Sulfur Batteries
Metals, 2022 In the context of the rising demand for electric storage systems, lithium–sulfur batteries provide an attractive solution for low-weight and high-energy battery systems. Considering circular economy for new technologies, it is necessary to assure the raw
Lilian Schwich, Bernd Friedrich
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Reconstructing enzyme evolution by protein engineering
FEBS Letters, EarlyView.Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler +2 more
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MetalsDue to climate change, electromobility and thus lithium-ion batteries are attracting increased interest. With a simultaneous increase in demand for raw materials like Li, Ni, Co, and Mn, their hydrometallurgical recycling is also gaining attention.
Dominic Dittmer +3 more
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Leaching of rare earth elements from bastnasite ore (second part) / Выщелачивание редкоземельных элементов из пород, содержащих фторкарбонаты – вторая часть / Rastvaranje elemenata retkih zemalja iz ruda koje sadrže fluorokarbonatni mineral - drugi deo [PDF]
Vojnotehnički Glasnik, 2019 Dissolution of rare earth elements from bastnasite ore was studied using different leaching agents such as sulfuric acid, hydrochloric acid, acetic acid, citric acid and sodium hydroxide at 70°C, with 1mol/L, solid/liquid ratio of 0.05 between 30 and ...
Srećko R. Stopić, Bernd G. Friedrich
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New Science Based Concepts for Increased Efficiency in Battery Recycling
Metals, 2021 It is a common understanding worldwide that electromobility will have a significant share in passenger transport and that there will be a very dynamic increase in the return volumes of discarded batteries in the future [...]
Bernd Friedrich, Lilian Schwich
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FEBS Letters, EarlyView.The process of internalization of the Shiga toxin A subunit via formation of a complex with the Shiga toxin B subunit, which specifically binds to the Gb3 receptor. The peptide is designed to act as a carrier of drugs into cancer cells. Here, we explored the potential of peptides derived from the catalytic A subunit of Shiga toxin (STxA) to be drug ...
Giulia Opassi +6 more
wiley +1 more source
Enabling CO2 neutral metallurgy for ferrochromium production using bio-based reducing agents
Scientific ReportsThe metallurgical industry is a major source of anthropogenic greenhouse gas emissions. This study explores the replacement of fossil-reducing agents with potentially CO2-neutral bio-based reducing agents.
Marcus Sommerfeld +2 more
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Leaching of rare earth elements with sulfuric acid from bastnasite ores / Выщелачивание редкоземельных металлов серной кислотой из пород, содержащих фторкарбонаты / Rastvaranje elemenata retkih zemalja sumpornom kiselinom iz ruda koje sadrže fluorokarbonatni mineral [PDF]
Vojnotehnički Glasnik, 2018 Dissolution of rare earth elements from bastnasite ores was studied using sulfuric acid at the atmospheric pressure. The one step strategy with sulfuric acid was studied further and the results showed that filtering difficulties do not happen for the ...
Srećko R. Stopić, Bernd G. Friedrich
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Metals, 2023 The sodium smelting of vanadium–titanium magnetite (VTM) can realize a multi-component comprehensive utilization of VTM. To broaden the application of the vanadium-bearing pig iron produced through this process, it is imperative to maintain the titanium ...
Zhiwei Bian +6 more
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