Yıl 2020, Cilt 59 , Sayı 4, Sayfalar 225 - 234 2020-12-01

BAKIR İÇERİĞİ YÜKSEK REFRAKTER BİR ALTIN CEVHERİNİN SİYANÜR LİÇİNE UYGUNLUĞUNUN ARAŞTIRILMASI
INVESTIGATION OF THE AMENABILITY OF A COPPER-RICH REFRACTORY GOLD ORE TO CYANIDE LEACHING

Deus Albert MSUMANGE [1] , Ersin Yener YAZICI [2] , Oktay CELEP [3] , Hacı DEVECİ [4]


Serbest altın içeren cevherlerin giderek tükenmesi nedeniyle refrakter altın cevherlerinden altın
üretimi artmaktadır. Siyanür tüketen minerallerin (bakır mineralleri gibi) varlığı ve altının pirit ve
arsenopirit gibi mineraller içerisinde kapanım halinde bulunması altın cevherlerindeki refrakterliğin
yaygın nedenleri arasında yer almaktadır. Bu çalışmada, bakırca zengin bir altın cevherinin
(108 g/t Au, %1,60 Cu) siyanür liçine uygunluğu araştırılmıştır. Siyanür liçinde elde edilen düşük
(%18,4) altın kazanımı, cevherin yüksek derecede refrakter bir cevher olduğunu göstermektedir.
Sülfürik asit ön işlemi ile asitte çözünen bakırın uzaklaştırılması, takip eden siyanür liçinde
yüksek altın kazanımlarına ulaşılmasında etkili olmamıştır. Yüksek NaCN konsantrasyonlarında
(1-8 g/L) yapılan testlerde, sınırlı altın kazanımları (≤%47,2) elde edilmiştir. Siyanür liçinden önce
ön işlem olarak uygulanan çok ince öğütme (d80: 8-73 μm) sonrası altın kazanımları %54,1’in
altında kalmıştır. Elde edilen sonuçlar cevherin çift yönlü refrakter bir cevher olduğunu ve siyanür
liçi aşamasında kabul edilebilir (>%90) altın kazanımlarına ulaşmak için daha etkili ön işlem(ler)in
uygulanmasının gerekli olduğunu göstermiştir.

The production of gold from refractory gold ores has been increasing due to the exhaustion of free milling gold ores. The presence of cyanicides (e.g., copper minerals) and encapsulation of gold in minerals such as pyrite and arsenopyrite are common reasons for refractoriness of gold ores. In this study, the amenability of a copper-rich gold ore (108 g/t Au, 1.60% Cu) to cyanide leaching was investigated. Direct cyanide leaching of the ore showed that the gold extraction was very low by 18.4% over 24 h., indicating that the ore is highly refractory. Sulphuric acid pretreatment for the removal of acid-soluble copper was found to be not effective to achieve high gold extractions at the subsequent cyanide leaching. Leaching at high NaCN concentrations (1-8 g/L) yielded limited Au extractions of ≤47.2%. Ultra-fine grinding (UFG) (d80: 8-73 μm) as a pretreatment route followed by cyanide leaching also could provide Au recoveries of just below 54.1%. The findings showed that the ore is double-refractory and needs the employment of more effective pretreatment process(es) to achieve acceptable gold extractions (>90%) in subsequent cyanidation stage.
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Birincil Dil en
Konular Mühendislik, Ortak Disiplinler
Bölüm Araştırma Makalesi
Yazarlar

Orcid: 0000-0002-0809-7228
Yazar: Deus Albert MSUMANGE (Sorumlu Yazar)
Kurum: KARADENİZ TEKNİK ÜNİVERSİTESİ
Ülke: Turkey


Orcid: 0000-0002-8711-0784
Yazar: Ersin Yener YAZICI
Kurum: KARADENİZ TEKNİK ÜNİVERSİTESİ
Ülke: Turkey


Orcid: 0000-0001-9024-4196
Yazar: Oktay CELEP
Kurum: KARADENİZ TEKNİK ÜNİVERSİTESİ
Ülke: Turkey


Orcid: 0000-0003-4105-0912
Yazar: Hacı DEVECİ
Kurum: KARADENİZ TEKNİK ÜNİVERSİTESİ
Ülke: Turkey


Tarihler

Başvuru Tarihi : 15 Mayıs 2020
Kabul Tarihi : 15 Ağustos 2020
Yayımlanma Tarihi : 1 Aralık 2020

Bibtex @araştırma makalesi { madencilik843761, journal = {Bilimsel Madencilik Dergisi}, issn = {2564-7024}, address = {Selanik Cad. No: 19/4 06650 Kızılay-Çankaya / ANKARA - TURKEY}, publisher = {TMMOB Maden Mühendisleri Odası}, year = {2020}, volume = {59}, pages = {225 - 234}, doi = {10.30797/madencilik.843761}, title = {INVESTIGATION OF THE AMENABILITY OF A COPPER-RICH REFRACTORY GOLD ORE TO CYANIDE LEACHING}, key = {cite}, author = {Msumange, Deus Albert and Yazıcı, Ersin Yener and Celep, Oktay and Deveci, Hacı} }
APA Msumange, D , Yazıcı, E , Celep, O , Deveci, H . (2020). INVESTIGATION OF THE AMENABILITY OF A COPPER-RICH REFRACTORY GOLD ORE TO CYANIDE LEACHING . Bilimsel Madencilik Dergisi , 59 (4) , 225-234 . DOI: 10.30797/madencilik.843761
MLA Msumange, D , Yazıcı, E , Celep, O , Deveci, H . "INVESTIGATION OF THE AMENABILITY OF A COPPER-RICH REFRACTORY GOLD ORE TO CYANIDE LEACHING" . Bilimsel Madencilik Dergisi 59 (2020 ): 225-234 <https://dergipark.org.tr/tr/pub/madencilik/issue/58436/843761>
Chicago Msumange, D , Yazıcı, E , Celep, O , Deveci, H . "INVESTIGATION OF THE AMENABILITY OF A COPPER-RICH REFRACTORY GOLD ORE TO CYANIDE LEACHING". Bilimsel Madencilik Dergisi 59 (2020 ): 225-234
RIS TY - JOUR T1 - INVESTIGATION OF THE AMENABILITY OF A COPPER-RICH REFRACTORY GOLD ORE TO CYANIDE LEACHING AU - Deus Albert Msumange , Ersin Yener Yazıcı , Oktay Celep , Hacı Deveci Y1 - 2020 PY - 2020 N1 - doi: 10.30797/madencilik.843761 DO - 10.30797/madencilik.843761 T2 - Bilimsel Madencilik Dergisi JF - Journal JO - JOR SP - 225 EP - 234 VL - 59 IS - 4 SN - 2564-7024- M3 - doi: 10.30797/madencilik.843761 UR - https://doi.org/10.30797/madencilik.843761 Y2 - 2020 ER -
EndNote %0 Bilimsel Madencilik Dergisi INVESTIGATION OF THE AMENABILITY OF A COPPER-RICH REFRACTORY GOLD ORE TO CYANIDE LEACHING %A Deus Albert Msumange , Ersin Yener Yazıcı , Oktay Celep , Hacı Deveci %T INVESTIGATION OF THE AMENABILITY OF A COPPER-RICH REFRACTORY GOLD ORE TO CYANIDE LEACHING %D 2020 %J Bilimsel Madencilik Dergisi %P 2564-7024- %V 59 %N 4 %R doi: 10.30797/madencilik.843761 %U 10.30797/madencilik.843761
ISNAD Msumange, Deus Albert , Yazıcı, Ersin Yener , Celep, Oktay , Deveci, Hacı . "INVESTIGATION OF THE AMENABILITY OF A COPPER-RICH REFRACTORY GOLD ORE TO CYANIDE LEACHING". Bilimsel Madencilik Dergisi 59 / 4 (Aralık 2020): 225-234 . https://doi.org/10.30797/madencilik.843761
AMA Msumange D , Yazıcı E , Celep O , Deveci H . INVESTIGATION OF THE AMENABILITY OF A COPPER-RICH REFRACTORY GOLD ORE TO CYANIDE LEACHING. Madencilik. 2020; 59(4): 225-234.
Vancouver Msumange D , Yazıcı E , Celep O , Deveci H . INVESTIGATION OF THE AMENABILITY OF A COPPER-RICH REFRACTORY GOLD ORE TO CYANIDE LEACHING. Bilimsel Madencilik Dergisi. 2020; 59(4): 225-234.
IEEE D. Msumange , E. Yazıcı , O. Celep ve H. Deveci , "INVESTIGATION OF THE AMENABILITY OF A COPPER-RICH REFRACTORY GOLD ORE TO CYANIDE LEACHING", Bilimsel Madencilik Dergisi, c. 59, sayı. 4, ss. 225-234, Ara. 2020, doi:10.30797/madencilik.843761