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Title Determination of metallic impurities in the copper deposit obtained by electroextraction from solution resulted in the recycling of Waste Printed Circuit Board
Status Accepted
Final type Poster
Final session WAS&BIO - Waste and biomass as sustainable energy and material sources
Authors E., Covaci1, S., Dorneanu2, N., Cotolan3, T., Frentiu4
1 Babes-Bolyai University, Cluj-Napoca, Romania
2 Faculty of Chemistry and Chemical Engineering, Babes-Bolyai University, Cluj-Napoca, Romania
3 Babes-Bolyai University, Cluj-Napoca, Romania
4 Babes-Bolyai University, Cluj-Napoca, Romania
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Brief content The content of Sn, Pb, Ni, Zn and Fe in deposits of copper obtained by electrodeposition from acidic solution resulted in the recycling of Waste Printed Circuit Board (WPCB) were determined by inductively coupled plasma optical emission spectrometry. The determinations were carried out using a simultaneous Spectro CIROSCCD spectrometer equipped with an axial viewing torch. The copper samples were dissolved in aqua regia, and the metals determined in optimum working conditions of plasma torch. Contents as low as 0.1 % Fe, 0.2 % Ni, 0.3 % Zn and Sn, and 0.5 % Pb were found. The copper purity was in the range 95.3 – 98.6%. Based on these data, the analytical protocol for metal trace quantification in the copper deposit was validated using synthetic solutions prepared from monoelemental stock solutions. For this purpose, the limit of detection, limit of quantification and recovery of metals were evaluated.
ID 59