Journals / İstanbul Üniversitesi Mühendislik Fakültesi Yerbilimleri Dergisi / 2007 / Cilt: 20 - Sayı: 2

Ferric sulphate leaching of Kayabaşı massive copper ore

Kayabaşı masif bakır cevherinin ferrik sülfat liçi

Pages
63–69
Publication Date
2022-10-21
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

The results indicated that the temperature exerts a strong effect on the rate and extend of extraction of copper and zinc that tended to increase exponentially with increasing temperature and over 90% Cu and 54% Zn recoveries were obtained at 80°C.

📌 3 Key Takeaways

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Objective & Hypothesis:In this study, the mineralogical characteristics and the acidic ferric leaching of Trabzon-Kayabaşı Massive Sulphide ore were investigated.
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Key Findings & Data:Mineralogical analysis of the ore samples has shown that the ore contains a variety of copper sulphides (12.5% Cu) including covellite, chalcocite, enargite, bornite, chalcopyrite, sphalerite (4.9% Zn), pyrite (29.9% Fe) and galena (0.7% Pb).
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Conclusion & Impact:The results indicated that the temperature exerts a strong effect on the rate and extend of extraction of copper and zinc that tended to increase exponentially with increasing temperature and over 90% Cu and 54% Zn recoveries were obtained at 80°C.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

In this study, the mineralogical characteristics and the acidic ferric leaching of Trabzon-Kayabaşı Massive Sulphide ore were investigated. Mineralogical analysis of the ore samples has shown that the ore contains a variety of copper sulphides (12.5% Cu) including covellite, chalcocite, enargite, bornite, chalcopyrite, sphalerite (4.9% Zn), pyrite (29.9% Fe) and galena (0.7% Pb). Copper bearing minerals were found to occur as closely associated with pyrite and sphalerite. In the leaching tests, the effect of ferric iron concentration (0.0625-0.5 M), leaching temperature (25-80°C) and particle size (-106 jtim) on the extraction of copper and zinc were examined at 0.5% w/v pulp density. The results indicated that the temperature exerts a strong effect on the rate and extend of extraction of copper and zinc that tended to increase exponentially with increasing temperature and over 90% Cu and 54% Zn recoveries were obtained at 80°C. The decrease in the particle size and the increase in the ferric iron concentration under the test conditions did not produce the desired effect on the metal extraction.

Özet

Bu çalışmada, Trabzon-Kayabaşı maden yatağı masif cevherinin mineralojik özellikleri ve sülfatlı ortamda fenik liçi ile metal kazanımı araştırılmıştır. Yapılan mineralojik incelemeler sonucunda cevherin; kovellin, kalkozin, enarjit, bornit, kalkopirit gibi bakır mineralleri (%12,5 Cu) ile sfalerit (%4,9 Zn), pirit (%29,9 Fe) ve galenden (%0,7 Pb) oluştuğu ve Cu minerallerinin piritle kenetli olduğu belirlenmiştir. Liç çalışmalarında, ferrik demir konsantrasyonunun (0,0625-0,5 M), sıcaklığın (25-80°C) ve tane boyutunun (-106 /im) Cu ve Zn çözünmesi üzerine etkisi, %0,5 ağırlık/hacim pülp yoğunluğunda incelenmiştir. Elde edilen sonuçlara göre sıcaklığın Cu ve Zn çözünme verimini önemli derecede etkilediği görülmüştür. 80°C ve 0,125 M Fe+3 iyon derişiminde, %90 Cu ve %54 Zn verimi elde edilmiştir. Deneysel koşullarda, ferrik iyon konsantrasyonun artması ve tane boyunun azalması ile metal ekstraksiyonunda istenilen daha yüksek verim sağlanamamıştır.

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Cite This Article

DEVECİ, H., YILMAZ, T., DURAN, C., ALP, İ., CELEP, O. (2022). Ferric sulphate leaching of Kayabaşı massive copper ore. İstanbul Üniversitesi Mühendislik Fakültesi Yerbilimleri Dergisi, Cilt: 20 - Sayı: 2, 63–69. https://ajindex.com/articles/554092

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