Evaluation of gold and silver leaching from printed circuit board of cellphones

[Display omitted] •Printed circuit boards (PCB) of mobile phones have large amounts of metals with high economic value such as gold and silver.•Dissolution of gold was done with a cyanide-based reagent and silver with nitric acid.•Leaching of PCB with Na2S2O3 and (NH4)2S2O3 to examine the feasibilit...

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Veröffentlicht in:	Waste management (Elmsford) 2014-02, Vol.34 (2), p.475-482
Hauptverfasser:	Petter, P.M.H., Veit, H.M., Bernardes, A.M.
Format:	Artikel
Sprache:	eng
Schlagworte:	AMMONIUM HYDROXIDES Applied sciences AQUA REGIA Cell Phone CONCENTRATION RATIO COPPER SULFATES ELECTRONIC EQUIPMENT Electronic Waste - statistics & numerical data Exact sciences and technology GOLD Gold - analysis Gold - isolation & purification Hydrochloric Acid HYDROGEN PEROXIDE INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY LEACHING MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES Mobile-phones NITRIC ACID Other wastes and particular components of wastes Pollution Precious metals Printed circuit boards PRINTED CIRCUITS REAGENTS RECYCLING Recycling - methods Refuse Disposal - methods SERVICE LIFE SILVER Silver - analysis Silver - isolation & purification SODIUM COMPOUNDS Thiosulfates WASTES
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