An influence of mechanical activation on the selectivity of tetrahedrite acid leaching
Sulphidic mineral - tetrahedrite Cu12Sb4S13 was subjected to leaching in a H2SO4 medium. Physico-chemical changes of a mechanically activated mineral were investigated before and after leaching using the infrared spectroscopy and the scanning electron microscopy. The mechanical activation of the min...
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| Format: | Article |
| Language: | English |
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Technical University of Kosice
2005-11-01
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| Series: | Acta Montanistica Slovaca |
| Subjects: | |
| Online Access: | http://actamont.tuke.sk/pdf/2005/n5/28achimovicova.pdf |
| _version_ | 1830452767789940736 |
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| author | Jaroslav Briančin Marcela Achimovičová Peter Baláž |
| author_facet | Jaroslav Briančin Marcela Achimovičová Peter Baláž |
| author_sort | Jaroslav Briančin |
| collection | DOAJ |
| description | Sulphidic mineral - tetrahedrite Cu12Sb4S13 was subjected to leaching in a H2SO4 medium. Physico-chemical changes of a mechanically activated mineral were investigated before and after leaching using the infrared spectroscopy and the scanning electron microscopy. The mechanical activation of the mineral resulted in the mechanochemical surface oxidation and the formation of sulphates and iron carbonate. Further, the specific surface area and the crystal structure disordering of the mineral increased. These aspects influence the kinetics and the selectivity of acid leaching of tetrahedrite. The effect of the reaction surface decreases due to the agglomeration during the milling and the formation of iron hydroxyoxides or iron hydroxysulphates from admixed pyrite and adversely affects the extraction rate of metals from tetrahedrite. |
| first_indexed | 2024-12-21T08:55:25Z |
| format | Article |
| id | doaj.art-3226c5ec12894627a58529ef57b3a120 |
| institution | Directory Open Access Journal |
| issn | 1335-1788 |
| language | English |
| last_indexed | 2024-12-21T08:55:25Z |
| publishDate | 2005-11-01 |
| publisher | Technical University of Kosice |
| record_format | Article |
| series | Acta Montanistica Slovaca |
| spelling | doaj.art-3226c5ec12894627a58529ef57b3a1202022-12-21T19:09:35ZengTechnical University of KosiceActa Montanistica Slovaca1335-17882005-11-0110special issue 1151155An influence of mechanical activation on the selectivity of tetrahedrite acid leachingJaroslav BriančinMarcela AchimovičováPeter BalážSulphidic mineral - tetrahedrite Cu12Sb4S13 was subjected to leaching in a H2SO4 medium. Physico-chemical changes of a mechanically activated mineral were investigated before and after leaching using the infrared spectroscopy and the scanning electron microscopy. The mechanical activation of the mineral resulted in the mechanochemical surface oxidation and the formation of sulphates and iron carbonate. Further, the specific surface area and the crystal structure disordering of the mineral increased. These aspects influence the kinetics and the selectivity of acid leaching of tetrahedrite. The effect of the reaction surface decreases due to the agglomeration during the milling and the formation of iron hydroxyoxides or iron hydroxysulphates from admixed pyrite and adversely affects the extraction rate of metals from tetrahedrite.http://actamont.tuke.sk/pdf/2005/n5/28achimovicova.pdftetrahedritemechanical activationacid leachingselectivity |
| spellingShingle | Jaroslav Briančin Marcela Achimovičová Peter Baláž An influence of mechanical activation on the selectivity of tetrahedrite acid leaching Acta Montanistica Slovaca tetrahedrite mechanical activation acid leaching selectivity |
| title | An influence of mechanical activation on the selectivity of tetrahedrite acid leaching |
| title_full | An influence of mechanical activation on the selectivity of tetrahedrite acid leaching |
| title_fullStr | An influence of mechanical activation on the selectivity of tetrahedrite acid leaching |
| title_full_unstemmed | An influence of mechanical activation on the selectivity of tetrahedrite acid leaching |
| title_short | An influence of mechanical activation on the selectivity of tetrahedrite acid leaching |
| title_sort | influence of mechanical activation on the selectivity of tetrahedrite acid leaching |
| topic | tetrahedrite mechanical activation acid leaching selectivity |
| url | http://actamont.tuke.sk/pdf/2005/n5/28achimovicova.pdf |
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