| Full text | |
| Author(s): |
de Andrade, Lidiane Maria
[1]
;
de Carvalho, Mariana Alves
[1]
;
Kohler Caldas, Marcos Paulo
[2]
;
Romano Espinosa, Denise Crocce
[1]
;
Soares Tenorio, Jorge Alberto
[1]
Total Authors: 5
|
| Affiliation: | [1] Univ Sao Paulo, Polytech Sch, Dept Chem Engn, Lab Recycling Waste Treatment & Extract LAREX, BR-05505080 Sao Paulo, SP - Brazil
[2] Fed Inst Educ Sci & Technol Espirito Santo, Serra Campus, BR-29173087 Serra, ES - Brazil
Total Affiliations: 2
|
| Document type: | Journal article |
| Source: | DETRITUS; v. 14, p. 86-91, MAR 2021. |
| Web of Science Citations: | 0 |
| Abstract | |
Over the years, the generation of Waste Electric and Electronic Equipment has been significantly increased, which leads to environmental and economic concerns. Thus, it is fundamental to develop treatment methods for these residues. Printed Circuit Boards are essential components of electronic equipments. In this sense, printed circuit boards are composed of remarkable metals, in particular, copper and silver at high and low concentrations, respectively. These metals can be recovered by the hydrometallurgical process followed by a chemical purification step. Therefore, the aim of this study was to leach silver and copper from two different printed circuit boards (memory board and motherboard) from obsolete computers by hydrometallurgical route based on only one-stage leaching in oxidant media. When compared to the motherboard, a higher recovery rate of Ag was obtained from memory boards 83% and 33%, respectively. Whereas, similar recovery rates of copper were observed for memory board and motherboard, 48% and 46%, respectively. (AU) | |
| FAPESP's process: | 12/51871-9 - Study Center for Technology in Waste Solid Treatment and Recycling - SCTWSTR |
| Grantee: | Jorge Alberto Soares Tenório |
| Support Opportunities: | Research Projects - Thematic Grants |