Araştırma Makalesi
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Kurşun-Çinko Liç Atıklarının Hidrosiklon ile Ön Zenginleştirmesi

Yıl 2018, Cilt: 23 Sayı: 3, 320 - 325, 11.12.2018

Öz

Bu
çalışmada, tipik bir kurşun-çinko liç tesisi katı atıklarının ön
zenginleştirilmesi araştırılmıştır. Liç işlemi sonrasında kalan minerallerin (filtre
keki) tane boyutunun büyük oranda düşmesi ve mineral kristal yapılarının bozulması
sebebi ile flotasyon, multi gravite separatör (MGS), sallantılı masa ve Knelson
separatörü gibi cevher zenginleştirme yöntem/makineleri ile kurşun (Pb) ve
çinko (Zn) için verimli bir konsantre elde edilememiştir. Tane boyutu
faksiyonuna göre yapılan kimyasal analizlerde Pb ve Zn minerallerinin çok ince
boyuttaki fraksiyonlarda (<75 µm) yoğunlaştığı tespit edildi. Böylece,
zenginleştirme metodunun tane boyutuna göre sınıflandırma ile yapılmasına karar
verilmiş ve zenginleştirme prosesinde sırasıyla 150 mikronluk elek ve
hidrosiklon kullanılmıştır. Eleme sonrasında % 86,64 Pb ve % 64,84 Zn verimleri
ile konsantre (ağırlıkça % 51,35) ürün elde edilmiş ve bu konsantre
kullanılarak bir dizi hidrosiklon deneyleri ile zenginleştirme prosesine devam
edilmiştir. Hidrosiklon deneyleri ile Pb ve Zn için en yüksek verim sırasıyla %
71,18 ve % 52,6 olarak elde edilmiştir. Sonuç olarak, daha yüksek verimli
konsantre ürün elde etmek için aglomera olmuş iri boyutlu tanelerin eleme
öncesinde merdaneli ve/veya çubuklu değirmen kullanarak dağıtılması uygun
görülmüştür.

Kaynakça

  • Abdel-Aal, EA., 2000. Kinetics of sulphuric acid leaching of low-grade zinc silicate ore. Hydrometallurgy. 55;3: 247–254.
  • Altundoğan, HS., Erdem, M., Orhan, R., 1998. Heavy metal pollution potential of zinc leach residues discarded in Çinkur plant. Tr. Journal of Engineering and Environmental Science. 22;3: 167–178.
  • Fujimoto, R.C., Maruyama, K., Miki, T., Nagasaka, T., 2016. The selective alkaline leaching of zinc oxide from electric arc furnace dust pre-treated with calcium oxide. Hydrometallurgy. 159: 120–125.
  • Güler, E., Seyrankaya, A., Cocen, I., 2011. Hydrometallurgical evaluation of zinc leach plant residue. Asian Journal of Chemistry. 23;7: 2879-2888.
  • Jha, MK., Kumar, V., Singh, RJ., 2001. Review of hydrometallurgical recovery of zinc from industrial wastes. Resources, Conservation and Recycling. 33: 1–22.
  • Kul, M., Topkaya, Y., 2008. Recovery of germanium and other valuable metals from zinc plant residues. Hydrometallurgy. 92;3: 87–94.
  • Lin, M., 2000. Alkaline leaching of metal melting industry wastes and separation of zinc and lead in the leach solution. Journal of Environmental Sciences. 12;4: 452–457.
  • Özverdi, A., Erdem, M., 2010. Environmental risk assessment and stabilization/solidification of zinc extraction residue: I. Environmental risk assessment. Hydrometallurgy. 100;3: 103–109.
  • Ruşen, A., Sunka,r AS., Topkaya, YA., 2008. Zinc and lead extraction from Çinkur leach residues by using hydrometallurgical method. Hydrometallurgy. 93: 45–50.
  • Şahin, M., Erdem, M., 2015. Cleaning of high lead-bearing zinc leaching residue by recovery of lead with alkaline leaching. Hydrometallurgy. 153: 170–178.
  • Turan, MD., Altundoğan, HS., Tümen, F., 2004. Recovery of zinc and lead from zinc plant residue. Hydrometallurgy. 75;1: 169–176.

Pre-Enrichment of Lead-Zinc Leaching Tailings by Hydrocyclone

Yıl 2018, Cilt: 23 Sayı: 3, 320 - 325, 11.12.2018

Öz

In this study, pre-enrichment of a typical lead-zinc
leaching plant solid tailings were investigated. After the leaching process,
due to the decrease in the grain size of the residual minerals (filter cake)
and the deterioration of the mineral crystal structures, a concentrate with
high recovery for lead (Pb) and zinc (Zn) could not be obtained with mineral
enrichment methods / machines such as flotation, multi-gravity separator (MGS),
shaking table and Knelson separator. It was determined that the Pb and Zn
minerals were concentrated in very fine fractions (<75 µm) by chemical
analyzes according to grain size fraction. Thus, it was decided to perform the
enrichment method according to the grain size classification and 150 micron
sieve and hydrocyclone were used respectively in the enrichment process. After
the sieving, a concentration (51.35% by weight) was obtained with 86.64% Pb and
64.84% Zn recoveries. The enrichment process was continued with a series of
hydrocyclone experiments using the obtained pre-concentrate. The highest
recoveries for Pb and Zn with hydrocyclone experiments were obtained as 71.18%
and 52.6%, respectively. As a result, it was found appropriate to disperse the
agglomerated coarse sized grains using a roller and/or bar mill prior to
sieving to obtain a concentrate with higher recovery.

Kaynakça

  • Abdel-Aal, EA., 2000. Kinetics of sulphuric acid leaching of low-grade zinc silicate ore. Hydrometallurgy. 55;3: 247–254.
  • Altundoğan, HS., Erdem, M., Orhan, R., 1998. Heavy metal pollution potential of zinc leach residues discarded in Çinkur plant. Tr. Journal of Engineering and Environmental Science. 22;3: 167–178.
  • Fujimoto, R.C., Maruyama, K., Miki, T., Nagasaka, T., 2016. The selective alkaline leaching of zinc oxide from electric arc furnace dust pre-treated with calcium oxide. Hydrometallurgy. 159: 120–125.
  • Güler, E., Seyrankaya, A., Cocen, I., 2011. Hydrometallurgical evaluation of zinc leach plant residue. Asian Journal of Chemistry. 23;7: 2879-2888.
  • Jha, MK., Kumar, V., Singh, RJ., 2001. Review of hydrometallurgical recovery of zinc from industrial wastes. Resources, Conservation and Recycling. 33: 1–22.
  • Kul, M., Topkaya, Y., 2008. Recovery of germanium and other valuable metals from zinc plant residues. Hydrometallurgy. 92;3: 87–94.
  • Lin, M., 2000. Alkaline leaching of metal melting industry wastes and separation of zinc and lead in the leach solution. Journal of Environmental Sciences. 12;4: 452–457.
  • Özverdi, A., Erdem, M., 2010. Environmental risk assessment and stabilization/solidification of zinc extraction residue: I. Environmental risk assessment. Hydrometallurgy. 100;3: 103–109.
  • Ruşen, A., Sunka,r AS., Topkaya, YA., 2008. Zinc and lead extraction from Çinkur leach residues by using hydrometallurgical method. Hydrometallurgy. 93: 45–50.
  • Şahin, M., Erdem, M., 2015. Cleaning of high lead-bearing zinc leaching residue by recovery of lead with alkaline leaching. Hydrometallurgy. 153: 170–178.
  • Turan, MD., Altundoğan, HS., Tümen, F., 2004. Recovery of zinc and lead from zinc plant residue. Hydrometallurgy. 75;1: 169–176.
Toplam 11 adet kaynakça vardır.

Ayrıntılar

Birincil Dil İngilizce
Bölüm Makaleler
Yazarlar

Hakan Çiftçi 0000-0003-4212-1591

Mustafa Gürsoy

Zeyni Arsoy

Bahri Ersoy

Yayımlanma Tarihi 11 Aralık 2018
Gönderilme Tarihi 29 Ağustos 2018
Yayımlandığı Sayı Yıl 2018 Cilt: 23 Sayı: 3

Kaynak Göster

APA Çiftçi, H., Gürsoy, M., Arsoy, Z., Ersoy, B. (2018). Pre-Enrichment of Lead-Zinc Leaching Tailings by Hydrocyclone. Yüzüncü Yıl Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 23(3), 320-325.