10.5937/mmeb1403153j = Technological investigations of sulphide oxidation from flotation tailings in order to increase the degree of copper leaching
| Autor: | Marko Jonović, Zoran Stevanović, Radojka Jonović, Ljiljana Avramović |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
chemistry.chemical_classification
021110 strategic defence & security studies Sulfide Metallurgy 0211 other engineering and technologies chemistry.chemical_element Sulfuric acid 02 engineering and technology 010501 environmental sciences 01 natural sciences Copper Tailings 6. Clean water chemistry.chemical_compound chemistry Copper extraction techniques Reagent Smelting Leaching (pedology) 0105 earth and related environmental sciences |
| Zdroj: | Mining and Metallurgy Engineering Bor. :153-160 |
| ISSN: | 2334-8836 |
| DOI: | 10.5937/mmeb1403153j |
| Popis: | The off-balance resources present the environmental problem and potential resource for copper extraction. This paper presents the results obtained using different reagents for the process of sulphide form oxidation of copper from flotation tailings. For the investigation in this paper work, the samples of flotation tailings were taken from the Old Flotation Tailing Dump of the Mining and Smelting Complex Bor in Eastern Serbia. Experimental testing was carried out in order to increase the leaching degree of copper with addition of oxidants during leaching. Using the Fe 2(SO 4)3 as an oxidant, the achieved copper leaching degree was 76.8%. The effect of thermal destruction of sulfide copper from flotation tailings in the presence of concentrated sulfuric acid was also investigated. After leaching of calcine with water, the degree of copper leaching was attained of 92%. Solutions after leaching are suitable for the SX-EW process of obtaining the copper. |
| Databáze: | OpenAIRE |
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