Journals / Afyon Kocatepe Üniversitesi Fen ve Mühendislik Bilimleri Dergisi / 2026 / Cilt: 26 Sayı: 3

Cyanide leaching of high-grade silver ore and determination of its refractoriness degree: A Preliminary Study

Yüksek Tenörlü Gümüş Cevherinin Siyanür Liçi ve Refrakterlik Derecesinin Belirlenmesi: Bir Ön Çalışma

Ömer Canıeren(KÜTAHYA DUMLUPINAR ÜNİVERSİTESİ)0000-0003-3851-8449
Cengiz Karagüzel(KÜTAHYA DUMLUPINAR ÜNİVERSİTESİ)0000-0003-1505-7678
Pages
761–765
Publication Date
2026-06-03
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AI Summary & Key Takeaways

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

In addition, it was determined that the silver ore studied was moderately refractory, considering that the maximum silver recovery obtained as a result of cyanide tests was 66%.

📌 3 Key Takeaways

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Objective & Hypothesis:This study investigates the beneficiability of high-grade silver ore obtained from Kütahya province by cyanide leaching.
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Key Findings & Data:As a result of the leaching experiments, it was observed that silver recovery increased with increasing NaCN concentration, with highest recovery of 66% achieved at 2 g/L.
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Conclusion & Impact:In addition, it was determined that the silver ore studied was moderately refractory, considering that the maximum silver recovery obtained as a result of cyanide tests was 66%.
🔬Design:Araştırma Makalesi
📍Scope:Comprehensive Sample
⚙️Variables:Gümüş · siyanür liçi · refrakterlik

Abstract

This study investigates the beneficiability of high-grade silver ore obtained from Kütahya province by cyanide leaching. First, chemical and mineralogical analyses were carried out to characterise the silver ore. Then, leaching tests are conducted. In leaching experiments, the conditions at Eti Gümüş plant were maintained, and the optimum NaCN amount and time-dependent dissolution behaviour of the silver ore were investigated. As a result of the leaching experiments, it was observed that silver recovery increased with increasing NaCN concentration, with highest recovery of 66% achieved at 2 g/L. It was also found that silver dissolution was largely complete within 5 hours, but continued for 24 hours, albeit at a low rate. According to the study, the experimental conditions were optimized as follows: 2 g/L of NaCN, a solid-to-liquid ratio of 30%, a particle size of -15 µm, a temperature of 24.5 °C, an agitation speed of 600 rpm, and a leaching time of 24 hours. In addition, it was determined that the silver ore studied was moderately refractory, considering that the maximum silver recovery obtained as a result of cyanide tests was 66%.

Özet

Bu çalışmada, Kütahya ili Gümüşköy bölgesinden temin edilen yüksek tenörlü gümüş cevherinin siyanür liçi ile zenginleştirilebilirliği incelenmiştir. Öncelikle gümüş cevherinin karakterizasyonuna yönelik olarak kimyasal ve minerolojik analizler yapılmıştır. Ardından liç testlerine geçilmiştir. Liç deneylerinde, Eti Gümüş tesisindeki liç koşulları korunmuş olup, optimum NaCN miktarı ve zamana bağlı gümüş cevherinin çözünme davranışı araştırılmıştır. Yapılan liç deneyleri sonucunda, NaCN miktarının artışına bağlı gümüş kazanımının arttığı görülmüş olup, en yüksek gümüş kazanımına %66 ile 2 g/L’lik NaCN konsantrasyonunun kullanıldığı deneyde ulaşılmıştır. Aynı zamanda, gümüş çözünmesinin 5 saatlik bir zaman diliminde büyük ölçüde tamamlandığı ancak çözünmenin az miktarda da olsa 24 saat boyunca devam ettiği ortaya koyulmuştur. Yürütülen çalışmaya göre, 2 g/L NaCN, katı oranı %30, tane boyutu -15 µm, sıcaklık 24.5 °C, karıştırma hızı 600 rpm ve liç süresi 24 saat olarak deney şartları optimize edilmiştir. İlave olarak, siyanür testleri sonucunda, elde edilen maksimum gümüş kazanımın %66 olduğu dikkate alındığında, üzerinde çalışılan gümüş cevherinin orta düzeyde refrakter olduğu tespit edilmiştir.

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Cite This Article

Canıeren, Ö., Karagüzel, C. (2026). Cyanide leaching of high-grade silver ore and determination of its refractoriness degree: A Preliminary Study. Afyon Kocatepe Üniversitesi Fen ve Mühendislik Bilimleri Dergisi, Cilt: 26 Sayı: 3, 761–765. https://doi.org/10.35414/akufemubid.1812514

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