Influence of chalcopyrite structure on their leaching by sodium nitrate in sulphuric acid

2014
Autori
Sokić, Miroslav
Radosavljević, Slobodan
Marković, Branislav

Matković, Vladislav
Štrbac, Nada

Kamberović, Željko

Živković, Dragana

Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
During the chalcopyrite leaching by sodium nitrate and sulfuric acid solution, leaching rate decreases with increasing the time and a part of chalcopyrite mineral grains remains in the leach residue. In chalcopyrite concentrate, 95.5 % of chalcopyrite mineral occurs as in liberated grains, and the rest is in association with gangue minerals, which is very favorably from the aspect of hydrometallurgical treatment. Complex forms, like impregnations and complex intergrowths, do not exist. After experiments carried out, leaching of copper achieved 84 % at temperature 80 degrees C and time 240 min. In the all leach residues, 97 % chalcopyrite mineral grains occur as liberated with highly corroded surfaces. Therefore, the structural assembly of chalcopyrite grains is favorable and no reason to reduce the leaching rate in the final stage of reaction. Reason for this is elemental sulfur, which was formed during the reaction, precipitated at the particle surfaces, and slowed down the leaching r...ate in the final stage of leaching process.
Ključne reči:
structural characteristics of mineral grains / quantitative microscopic analysis / chalcopyrite leachingIzvor:
Metallurgical & Materials Engineering, 2014, 20, 1, 53-60Izdavač:
- Savez inženjera metalurgije Srbije, Beograd
Finansiranje / projekti:
- Razvoj tehnoloških procesa prerade nestandardnih koncentrata bakra u cilju optimizacije emisije zagađujućih materija (RS-34023)
- Inovativna sinergija nus-produkata, minimizacije otpada i čistije proizvodnje u metalurgiji (RS-34033)
Institucija/grupa
Institut za tehnologiju nuklearnih i drugih mineralnih sirovinaTY - JOUR AU - Sokić, Miroslav AU - Radosavljević, Slobodan AU - Marković, Branislav AU - Matković, Vladislav AU - Štrbac, Nada AU - Kamberović, Željko AU - Živković, Dragana PY - 2014 UR - https://ritnms.itnms.ac.rs/handle/123456789/307 AB - During the chalcopyrite leaching by sodium nitrate and sulfuric acid solution, leaching rate decreases with increasing the time and a part of chalcopyrite mineral grains remains in the leach residue. In chalcopyrite concentrate, 95.5 % of chalcopyrite mineral occurs as in liberated grains, and the rest is in association with gangue minerals, which is very favorably from the aspect of hydrometallurgical treatment. Complex forms, like impregnations and complex intergrowths, do not exist. After experiments carried out, leaching of copper achieved 84 % at temperature 80 degrees C and time 240 min. In the all leach residues, 97 % chalcopyrite mineral grains occur as liberated with highly corroded surfaces. Therefore, the structural assembly of chalcopyrite grains is favorable and no reason to reduce the leaching rate in the final stage of reaction. Reason for this is elemental sulfur, which was formed during the reaction, precipitated at the particle surfaces, and slowed down the leaching rate in the final stage of leaching process. PB - Savez inženjera metalurgije Srbije, Beograd T2 - Metallurgical & Materials Engineering T1 - Influence of chalcopyrite structure on their leaching by sodium nitrate in sulphuric acid EP - 60 IS - 1 SP - 53 VL - 20 DO - 10.5937/metmateng1401053S UR - conv_480 ER -
@article{ author = "Sokić, Miroslav and Radosavljević, Slobodan and Marković, Branislav and Matković, Vladislav and Štrbac, Nada and Kamberović, Željko and Živković, Dragana", year = "2014", abstract = "During the chalcopyrite leaching by sodium nitrate and sulfuric acid solution, leaching rate decreases with increasing the time and a part of chalcopyrite mineral grains remains in the leach residue. In chalcopyrite concentrate, 95.5 % of chalcopyrite mineral occurs as in liberated grains, and the rest is in association with gangue minerals, which is very favorably from the aspect of hydrometallurgical treatment. Complex forms, like impregnations and complex intergrowths, do not exist. After experiments carried out, leaching of copper achieved 84 % at temperature 80 degrees C and time 240 min. In the all leach residues, 97 % chalcopyrite mineral grains occur as liberated with highly corroded surfaces. Therefore, the structural assembly of chalcopyrite grains is favorable and no reason to reduce the leaching rate in the final stage of reaction. Reason for this is elemental sulfur, which was formed during the reaction, precipitated at the particle surfaces, and slowed down the leaching rate in the final stage of leaching process.", publisher = "Savez inženjera metalurgije Srbije, Beograd", journal = "Metallurgical & Materials Engineering", title = "Influence of chalcopyrite structure on their leaching by sodium nitrate in sulphuric acid", pages = "60-53", number = "1", volume = "20", doi = "10.5937/metmateng1401053S", url = "conv_480" }
Sokić, M., Radosavljević, S., Marković, B., Matković, V., Štrbac, N., Kamberović, Ž.,& Živković, D.. (2014). Influence of chalcopyrite structure on their leaching by sodium nitrate in sulphuric acid. in Metallurgical & Materials Engineering Savez inženjera metalurgije Srbije, Beograd., 20(1), 53-60. https://doi.org/10.5937/metmateng1401053S conv_480
Sokić M, Radosavljević S, Marković B, Matković V, Štrbac N, Kamberović Ž, Živković D. Influence of chalcopyrite structure on their leaching by sodium nitrate in sulphuric acid. in Metallurgical & Materials Engineering. 2014;20(1):53-60. doi:10.5937/metmateng1401053S conv_480 .
Sokić, Miroslav, Radosavljević, Slobodan, Marković, Branislav, Matković, Vladislav, Štrbac, Nada, Kamberović, Željko, Živković, Dragana, "Influence of chalcopyrite structure on their leaching by sodium nitrate in sulphuric acid" in Metallurgical & Materials Engineering, 20, no. 1 (2014):53-60, https://doi.org/10.5937/metmateng1401053S ., conv_480 .