Academic Journal
Hydrometallurgical Treatment of Converter Dust from Secondary Copper Production: A Study of the Lead Cementation from Acetate Solution
| العنوان: | Hydrometallurgical Treatment of Converter Dust from Secondary Copper Production: A Study of the Lead Cementation from Acetate Solution |
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| المؤلفون: | Martina Laubertová, Alexandra Kollová, Jarmila Trpčevská, Beatrice Plešingerová, Jaroslav Briančin |
| المصدر: | Minerals, Vol 11, Iss 12, p 1326 (2021) |
| بيانات النشر: | MDPI AG |
| سنة النشر: | 2021 |
| المجموعة: | Directory of Open Access Journals: DOAJ Articles |
| مصطلحات موضوعية: | hydrometallurgy, converter dust, secondary copper, cementation, lead, Mineralogy, QE351-399.2 |
| الوصف: | The subject of interest in this study was lead cementation with zinc from solution after conventional agitate acidic leaching of converter dust from secondary copper production. The kinetics of lead cementation from an acid solution of lead acetate using zinc powder was studied. The optimal cementation conditions for removing lead from the solution were determined to have a stirring intensity of 300 rpm, a zinc particle size distribution <0.125–0.4> mm and an ambient temperature. Under these conditions, an almost 90% efficiency in removing lead from solution was achieved. The cementation precipitate contains Pb, and a certain amount of Cu. Lead is present in the cementation precipitate in the PbO, Pb 5 O 8 and Pb(Cu 2 O 2 ) phases. The solution after cementation was also refined from copper. The solution can be used for further processing in order to obtain a marketable Zn-based product. The resulting cementation precipitate can be further processed and modified to obtain a lead-based product. A kinetic study of the process of lead cementation from solution was also carried out. Based on experimental measurements, the value of apparent activation energy (Ea) which was found to be ~18.66 kJ·mol −1 , indicates that this process is diffusion controlled in the temperature range 293–333 K. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| Relation: | https://www.mdpi.com/2075-163X/11/12/1326; https://doaj.org/toc/2075-163X; https://doaj.org/article/3c848a06a47b4f849bff55f606e64c77 |
| DOI: | 10.3390/min11121326 |
| الاتاحة: | https://doi.org/10.3390/min11121326 https://doaj.org/article/3c848a06a47b4f849bff55f606e64c77 |
| رقم الانضمام: | edsbas.AAEB7061 |
| قاعدة البيانات: | BASE |
| DOI: | 10.3390/min11121326 |
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