Photovoltaic Recycling with the help of Water and Light - it does not get greener

Palitzsch, Wolfram; Killenberg, Arvid; Schönherr, Petra; Loser, Ulrich

doi:10.1109/pvsc.2018.8548095

Cited by 2 publications

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“…A pioneer in the application of MSA for recycling of metals is Dr Wolfram Palitzsch, who developedat Loser Chemie (Germany)an innovative process for recycling end-of-life thin-film photovoltaic (PV) modules, in which MSA plays an essential role. 140,141 In contrast to conventional recycling technologies, the photovoltaic modules are not shredded so that the glass doesn't need to be broken. The sandwich structure of the modules is opened, and the glass panels are taken out in one piece.…”

Section: Urban Miningmentioning

confidence: 99%

Methanesulfonic acid (MSA) in clean processes and applications: a tutorial review

Binnemans,

Jones

2024

Green Chem.

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Section: Urban Miningmentioning

confidence: 99%

Methanesulfonic acid (MSA) in clean processes and applications: a tutorial review

Binnemans,

Jones

2024

Green Chem.

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Methanesulfonic Acid (MSA) in Hydrometallurgy

Binnemans

Jones

2022

J. Sustain. Metall.

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This paper reviews the properties of methanesulfonic acid (MSA) and its potential for use in hydrometallurgy. Although MSA is much less known than sulfuric, hydrochloric or nitric acid, it has several appealing properties that makes it very attractive for the development of new circular flowsheets in hydrometallurgy. Unlike other organic acids such as acetic acid, MSA is a very strong acid (pKa = − 1.9). In addition, it is very stable against chemical oxidation and reduction, and has no tendency to hydrolyze in water. In terms of its environmental impact, MSA has low toxicity and is biodegradable. In nature, it is part of the geochemical sulfur cycle. A useful property is the high solubility of its salts in water: methanesulfonate salts have a much higher solubility in water than sulfate salts. Additionally, MSA and its salts are compatible with the electrowinning of metals because the anode reaction involves the formation of oxygen gas (unlike chlorine gas formation in chloride electrolytes) and no cathodic reduction of the anion occurs (unlike nitrate reduction in nitrate electrolytes). MSA is particularly interesting for lead hydrometallurgy, where it offers more environment-friendly alternatives to HBF4 and H2SiF6. However, MSA can also be adopted in all hydrometallurgical processes that require strong Brønsted acids. It can be used in the metallurgy of copper, zinc, cobalt, nickel, and rare earths, as well as in the recycling of metals from end-of-life products. Although MSA itself is a non-oxidizing acid, in combination with hydrogen peroxide it yields strongly oxidizing lixiviants that can leach copper from chalcopyrite or dissolve metallic silver. The global production of MSA is expected to increase rapidly in the near future thanks to both the industrialization of a new sustainable synthesis process and its many applications (cleaning fluids, electrolytes for electroplating, redox-flow batteries, catalysts in organic synthesis, and as a solvent for high-molecular-weight polymers). As a result, MSA will become more widely available and a lower price will make it an increasingly attractive option. Graphical Abstract

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Photovoltaic Recycling with the help of Water and Light - it does not get greener

Cited by 2 publications

References 0 publications

Methanesulfonic acid (MSA) in clean processes and applications: a tutorial review

Methanesulfonic acid (MSA) in clean processes and applications: a tutorial review

Methanesulfonic Acid (MSA) in Hydrometallurgy

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