Precipitation of Germanium from Sulphate Solutions Containing Tin and Indium Using Tannic Acid

Precipitation of Germanium from Sulphate Solutions Containing Tin and Indium Using Tannic Acid

The precipitation of tannin complex of germanium from sulfuric solutions obtained after dross leaching was investigated. The tested solutions contained mainly zinc, germanium, indium, and tin. The influence of temperature, time, amount of added tannic acid and its purity was determined. The applicat...

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Veröffentlicht in:Applied sciences 2019-03, Vol.9 (5), p.966
Hauptverfasser: Drzazga, Michał, Chmielarz, Andrzej, Benke, Grzegorz, Leszczyńska-Sejda, Katarzyna, Knapik, Magdalena, Kowalik, Patrycja, Ciszewski, Mateusz
Format: Artikel
Sprache:eng
Schlagworte:
Analytical chemistry
Aqueous solutions
Detinning
Dross
Germanium
germanium recovery
Hydrogen peroxide
Indium
indium recovery
Investigations
Leachates
Leaching
Metallurgy
Metals
Oxidation
Polyethylene terephthalate
Powder
Raw materials
Solvent extraction processes
Tannic acid
tannin
tin recovery
Zinc
zinc metallurgy
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Zusammenfassung:The precipitation of tannin complex of germanium from sulfuric solutions obtained after dross leaching was investigated. The tested solutions contained mainly zinc, germanium, indium, and tin. The influence of temperature, time, amount of added tannic acid and its purity was determined. The application of pure tannic acid allowed the precipitation of >99% of germanium and decreased its concentration in a solution 99% Sn and reduced its concentration in the solution below 0.025 g/dm3.
ISSN:2076-3417
2076-3417
DOI:10.3390/app9050966