Atıklardan Siyanürün Geri Kazanımı: SART Prosesi

Elif Yılmaz; Ersin Y. Yazıcı; Oktay Celep; Hacı Deveci

doi:10.17714/gumusfenbil.452203

EN TR

Recovery of Cyanide from Effluents: SART Process

Öz

Gold production from copper-rich gold ores is increasing at worldwide. Owing to the high dissolution of copper minerals in cyanide solutions, technical and economic difficulties have been faced in treatment of those ores. Gold extraction from ores that contain >0.5% Cu is often uneconomic by traditional cyanide leaching. High cyanide concentrations (CN:Cu>4) should be maintained to achieve high gold extractions. This, in turn, leads to an increase in reagent consumptions and environmental risk due to higher use cyanide. SART process was developed in particular for recovery of cyanide from the effluents of intensive cyanidation of Au-Cu ores. The process is applied worldwide and in Turkey at industrial scale. It is based on precipitation of copper in the form of Cu₂S from leach solutions under acidic conditions (pH 4-5) by addition of sulphide (as Na₂S) leading to the release of free cyanide prior to its recovery. Cu₂S is sold as a by-product. The performance of the process is dependent on the addition of sulphur, precipitation period, retention of copper precipitates in the thickener and other parameters. Addition of sulphur should be strictly controlled to obtain a high purity Cu₂S precipitate. In this study, chemical principles and factors affecting the performance of SART process are discussed in detail. A general economic analysis of the process in view of capital and operating costs is also presented.

Anahtar Kelimeler

Copper-gold Ores,Cyanide Leaching,Cyanide Recovery,SART Process

Atıklardan Siyanürün Geri Kazanımı: SART Prosesi

Öz

Dünya’da bakır içeriği yüksek altın cevherlerinden altın üretimi giderek artmaktadır. Bakır minerallerinin siyanür çözeltilerinde yüksek oranlarda çözünmesi nedeniyle bu tür cevherlerden altın kazanımında teknik ve ekonomik zorluklar yaşanmaktadır. Bakır içeriği %0,5’ten yüksek cevherlerden geleneksel siyanür liçi ile altın kazanımı genellikle ekonomik değildir. Yüksek altın kazanımlarına ulaşmak için liç işleminin yüksek siyanür konsantrasyonlarında (CN:Cu>4) yapılması gerekmektedir. Bu durum, hem reaktif maliyetini artırmakta hem de daha fazla siyanür kullanımıyla ilgili olarak çevresel riskin artmasına neden olmaktadır. SART prosesi özellikle bakır içeren altın cevherlerinin yoğun siyanür liçi sonrası atıklardan siyanürün geri kazanımı için geliştirilmiş bir prosestir. Dünya’da ve ülkemizde farklı tesislerde endüstriyel olarak uygulanmaktadır. Prosesin temeli, liç çözeltisinden bakırın asidik koşullarda (pH 4-5) sülfür (Na₂S) ilavesiyle Cu₂S halinde çöktürülmesi ve böylece siyanürün serbest hale getirilerek geri kazanımına dayanmaktadır. Elde edilen Cu₂S yan ürün olarak satılmaktadır. Prosesin performansı sülfür ilavesi, çöktürme süresi, bakır çökeleğinin tikinerde bekleme süresi vd. koşullara bağlıdır. Yüksek saflıkta bir Cu₂S çökeleği elde etmek için sülfür ilavesinin hassas bir şekilde kontrol edilmesi gerekmektedir. Bu çalışmada, SART prosesinin kimyasal esasları ve performansını etkileyen parametreler detaylı olarak irdelenmiştir. Prosesin ilk yatırım ve işletme maliyetleri ışığında genel bir ekonomik analizi de sunulmuştur.

Anahtar Kelimeler

Bakır İçeren Altın Cevherleri,Siyanür Liçi,Siyanür Geri Kazanımı,SART Prosesi

Kaynakça

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Ayrıntılar

Birincil Dil

Türkçe

Konular

Mühendislik

Bölüm

Derleme

Yazarlar

Elif Yılmaz ^*
0000-0001-8789-0007
Türkiye

Ersin Y. Yazıcı
0000-0002-8711-0784
Türkiye

Oktay Celep Bu kişi benim
0000-0001-9024-4196
Türkiye

Hacı Deveci
0000-0003-4105-0912
Türkiye

Yayımlanma Tarihi

15 Temmuz 2019

Gönderilme Tarihi

9 Ağustos 2018

Kabul Tarihi

19 Aralık 2018

Yayımlandığı Sayı

Yıl 2019 Cilt: 9 Sayı: 3

DOI

https://doi.org/10.17714/gumusfenbil.452203

IZ

https://izlik.org/JA46ZN86BR

APA

Yılmaz, E., Yazıcı, E. Y., Celep, O., & Deveci, H. (2019). Atıklardan Siyanürün Geri Kazanımı: SART Prosesi. Gümüşhane Üniversitesi Fen Bilimleri Dergisi, 9(3), 600-615. https://doi.org/10.17714/gumusfenbil.452203

AMA

1.Yılmaz E, Yazıcı EY, Celep O, Deveci H. Atıklardan Siyanürün Geri Kazanımı: SART Prosesi. Gümüşhane Üniversitesi Fen Bilimleri Dergisi. 2019;9(3):600-615. doi:10.17714/gumusfenbil.452203

Chicago

Yılmaz, Elif, Ersin Y. Yazıcı, Oktay Celep, ve Hacı Deveci. 2019. “Atıklardan Siyanürün Geri Kazanımı: SART Prosesi”. Gümüşhane Üniversitesi Fen Bilimleri Dergisi 9 (3): 600-615. https://doi.org/10.17714/gumusfenbil.452203.

EndNote

Yılmaz E, Yazıcı EY, Celep O, Deveci H (01 Temmuz 2019) Atıklardan Siyanürün Geri Kazanımı: SART Prosesi. Gümüşhane Üniversitesi Fen Bilimleri Dergisi 9 3 600–615.

IEEE

[1]E. Yılmaz, E. Y. Yazıcı, O. Celep, ve H. Deveci, “Atıklardan Siyanürün Geri Kazanımı: SART Prosesi”, Gümüşhane Üniversitesi Fen Bilimleri Dergisi, c. 9, sy 3, ss. 600–615, Tem. 2019, doi: 10.17714/gumusfenbil.452203.

ISNAD

Yılmaz, Elif - Yazıcı, Ersin Y. - Celep, Oktay - Deveci, Hacı. “Atıklardan Siyanürün Geri Kazanımı: SART Prosesi”. Gümüşhane Üniversitesi Fen Bilimleri Dergisi 9/3 (01 Temmuz 2019): 600-615. https://doi.org/10.17714/gumusfenbil.452203.

JAMA

1.Yılmaz E, Yazıcı EY, Celep O, Deveci H. Atıklardan Siyanürün Geri Kazanımı: SART Prosesi. Gümüşhane Üniversitesi Fen Bilimleri Dergisi. 2019;9:600–615.

MLA

Yılmaz, Elif, vd. “Atıklardan Siyanürün Geri Kazanımı: SART Prosesi”. Gümüşhane Üniversitesi Fen Bilimleri Dergisi, c. 9, sy 3, Temmuz 2019, ss. 600-15, doi:10.17714/gumusfenbil.452203.

Vancouver

1.Elif Yılmaz, Ersin Y. Yazıcı, Oktay Celep, Hacı Deveci. Atıklardan Siyanürün Geri Kazanımı: SART Prosesi. Gümüşhane Üniversitesi Fen Bilimleri Dergisi. 01 Temmuz 2019;9(3):600-15. doi:10.17714/gumusfenbil.452203

Cited By

Atıklardan Siyanürün Geri Kazanımı: SART Prosesi

Gümüşhane Üniversitesi Fen Bilimleri Enstitüsü Dergisi

https://doi.org/10.17714/gumusfenbil.452203

Process Enhancement of Gold Extraction from a Copper-Rich Gold Ore by EDTA-Assisted Cyanide Leaching

Mineral Processing and Extractive Metallurgy Review

https://doi.org/10.1080/08827508.2025.2487659

e-ISSN: 2146-538X Yayın Modeli: Sürekli Yayın Atıf Dizinleri: TR Dizin , SCOPUS

Recovery of Cyanide from Effluents: SART Process

Öz

Anahtar Kelimeler

Atıklardan Siyanürün Geri Kazanımı: SART Prosesi

Öz

Anahtar Kelimeler

Kaynakça

Ayrıntılar

Birincil Dil

Konular

Bölüm

Yazarlar

Yayımlanma Tarihi

Gönderilme Tarihi

Kabul Tarihi

Yayımlandığı Sayı

DOI

IZ

Kaynak Göster

Cited By

Atıklardan Siyanürün Geri Kazanımı: SART Prosesi

Process Enhancement of Gold Extraction from a Copper-Rich Gold Ore by EDTA-Assisted Cyanide Leaching