Lead Recovery from Solid Residues of Copper Industry Using Triethylenetetramine Solution
| Autor: | Andrzej Chmielarz, Michał Drzazga, Katarzyna Leszczyńska-Sejda, Mateusz Ciszewski, Zbigniew Szołomicki |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Materials science
chemistry.chemical_element lead carbonate 02 engineering and technology Zinc 010501 environmental sciences engineering.material recycling 01 natural sciences 12. Responsible consumption chemistry.chemical_compound Jarosite Base metal 0105 earth and related environmental sciences Precipitation (chemistry) Lead carbonate triethylenetetramine Geology 021001 nanoscience & nanotechnology Geotechnical Engineering and Engineering Geology Pulp and paper industry Mineralogy Copper lead extraction chemistry Smelting engineering Leaching (metallurgy) 0210 nano-technology QE351-399.2 |
| Zdroj: | Minerals, Vol 11, Iss 546, p 546 (2021) Minerals Volume 11 Issue 5 |
| Popis: | Industrial processing of mineral ores and concentrates generates large amounts of solid residues, which can be landfilled or further processed to recover selected elements depending on its economical profitability. Pressure leaching is a technology enabling high recovery of base metals like copper and zinc, transferring others like lead and iron to the solid residue. High temperature and pressure of such leaching leads to formation of sparingly soluble lead jarosite (plumbojarosite). The load of lead landfilled as solid residues resulting from such operation is so big that its recovery is perspective and crucial for waste-limiting technologies. This paper is devoted to lead extraction from pressure leaching residues using triethylenetetramine solution and then its precipitation as a commercial lead carbonate. The highest obtained recovery of lead was 91.3%. Additionally, presented technology allows to manage and recycle amine solution and reuse solid products. Produced pure lead carbonate can be directly added to smelting, not increasing temperature within the furnace. |
| Databáze: | OpenAIRE |
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