دورية أكاديمية
Gravity and Electrostatic Separation for Recovering Metals from Obsolete Printed Circuit Board
| العنوان: | Gravity and Electrostatic Separation for Recovering Metals from Obsolete Printed Circuit Board |
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| المؤلفون: | Camila Mori de Oliveira, Rossana Bellopede, Alice Tori, Giovanna Zanetti, Paola Marini |
| المصدر: | Materials, Vol 15, Iss 5, p 1874 (2022) |
| بيانات النشر: | MDPI AG, 2022. |
| سنة النشر: | 2022 |
| المجموعة: | LCC:Technology LCC:Electrical engineering. Electronics. Nuclear engineering LCC:Engineering (General). Civil engineering (General) LCC:Microscopy LCC:Descriptive and experimental mechanics |
| مصطلحات موضوعية: | PCB, recycling, metal recovery, mechanical pre-treatment, Technology, Electrical engineering. Electronics. Nuclear engineering, TK1-9971, Engineering (General). Civil engineering (General), TA1-2040, Microscopy, QH201-278.5, Descriptive and experimental mechanics, QC120-168.85 |
| الوصف: | This study proposed an evaluation of enrichment processes of obsolete Printed Circuit Boards (PCBs), by means of gravity and electrostatic separation, aiming at the recovery of metals. PCBs are the most important component in electronic devices, having high concentrations of metals and offering a secondary source of raw materials. Its recycling promotes the reduction in the environmental impacts associated with its production, use, and disposal. The recovery method studied started with the dismantling of the PCB, followed by a comminution and granulometric classification. Subsequent magnetic, gravity, and electrostatic separations were performed. After the separations, a macroscopic visual evaluation and chemical analysis were carried out, determining the metal content in the concentrate products. The results obtained from gravity separation showed a product with metallic concentrations of 89% and 76% for particle sizes of 0.3–0.6 mm and 0.6–1.18 mm, respectively. In electrostatic separation, the product obtained was 88% for the lower particle size (1.18 mm. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1996-1944 |
| Relation: | https://www.mdpi.com/1996-1944/15/5/1874; https://doaj.org/toc/1996-1944 |
| DOI: | 10.3390/ma15051874 |
| URL الوصول: | https://doaj.org/article/31006b4d565d4e9ebae187de8068e6ed |
| رقم الأكسشن: | edsdoj.31006b4d565d4e9ebae187de8068e6ed |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 19961944 |
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| DOI: | 10.3390/ma15051874 |