Anod Çamurundaki Altının Sulu Ortamda Klorinasyonu Esnasında Çinko Liçinginin Optimizasyonu

Yıl 2022, Sayı: 34, 441 - 445, 31.03.2022

Bünyamin Dönmez , Cafer Celik

https://doi.org/10.31590/ejosat.1082659

Öz

Bakırı giderilmiş anod çamurundaki altının sulu ortamda klorinasyonuna ait optimizasyonu esnasında çinkonun liçing davranışı incelenmiştir. Çalışmada, Taguchi deneysel tasarımı kullanılmış olup deney planı olarak L9(34) ortogonal dizisi belirlenmiştir. Ön denemeler ışığı altında parametre olarak; reaksiyon sıcaklığı, karıştırma hızı, asit konsantrasyonu ve katı-sıvı oranı seçilmiştir. Çinkonun çözündürülmesine ait optimum şartlar şöyle tespit edilmiştir: reaksiyon sıcaklığı 40 °C, reaksiyon süresi 2700 s, karıştırma hızı 420 dak-1 ve katı-sıvı oranı 0.1 g.mL-1. Deneysel sonuçlara göre, optimum liç koşulları altında çinko ekstraksiyonunun % 71,8 olduğu gözlenmiştir.

Anahtar Kelimeler

Bakırı Giderilmiş Anod Çamuru, Klorinasyon, Çinko Liçingi, Taguchi Deney Tasarımı

Optimization of Zinc Leaching During Aqueous Chlorination of Gold in Anode Slime

Öz

The leaching behavior of zinc was investigated during the optimization of the chlorination of gold in the decopperized anode slime in aqueous medium. In the study, Taguchi experimental design was used and the L9(34) orthogonal array was determined as the experimental plan. As a parameter under the light of preliminary tests; reaction temperature, stirring speed, acid concentration and solid-liquid ratio were selected. The optimum conditions for dissolution of zinc were determined as follows: reaction temperature 40 °C, reaction time 2700 s, stirring speed 420 min-1 and solid-liquid ratio 0.1 g.mL-1. According to the experimental results, Zinc extraction was observed to be 71.8 % under optimum leaching conditions.

Anahtar Kelimeler

Decopperized Anode Slime, Chlorination, Zinc Leaching, Taguchi Experimental Design

Kaynakça

• Amer, A. M., (2003). “Processing of copper anodic-slimes for extraction of valuable metals.” Waste Management, 23, 763–770.
• Chen, G., Yang, H., Guo, J., and Li, X., 2013. “The rougher flotation process of copper anode slime for collecting gold and silver.” Precious Metals, 34, 32–34.
• Ding, Y., Zhang, S., Liu, B., Zheng, H., Chang, C. C., and Ekberg, C., (2019). “Recovery of precious metals from electronic waste and spent catalysts: A review,” Resources, Conservation and Recycling, 141, 284-298.
• Dönmez, B., Çelik, C., Çolak, S., and Yartaşi, A., (1998). “Dissolution optimization of copper from anode slime in H2SO4 solutions”, Industrial & Engineering Chemistry Research, 37, 3382-3387.
• Dönmez*, B., Ekinci, Z., Celik, C., and Çolak, S., (1999). “Optimisation of the chlorination of gold in decopperized anode slime in aqueous medium”, Hydrometallurgy, 52, 81-90.
• Guo, X., Xu, Z., Tian, Q., and Li, D., (2017). “Optimization on Selenium and Arsenic Conversion from Copper Anode Slime by Low-Temperature Alkali Fusion Process”, J Cent South Univ, 24, 1537–1543.
• Gündoğdu, C. C., Gündüz, T. and Atıcı U. H., (2021). “Taguchı Yöntemi İle Polimer Hammadde Karışım Optimizasyonu. Journal of Industrial Engineering”, Journal of Industrial Engineering, 32, 164-176.
• Harangi, Z., Kulcsar, T., and Kekesi, T., (2015). “Hydrometallurgical processing of anode slimes obtained from the electrolytic refining of soldering scrap”, Materials Science and Engineering, 40, 64–74.
• Havuz, T., Dönmez, B., and Çelik, C., (2010). “Optimization of removal of lead from bearing-lead anode slime”, Journal of Industrial and Engineering Chemistry, 16(3), 355–358.
• Li, D., Guo, X., Xu, Z., Xu, R. and Feng, Q., (2016). “Metal values separation from residue generated in alkali fusion-leaching of copper anode slime”, Hydrometallurgy, 165, 290–294.
• Li, X., Yang, H., Jin, Z., Tong, L. and Xiao, F., (2017). “Selenium Leaching from Copper Anode Slimes Using a Nitric Acid–Sulfuric Acid Mixture”, Metallurgist, 61, 348–356.
• Liu, J., Wang, S., Liu, C., Zhang, L., and Kong, D., (2021). “Decopperization mechanism of copper anode slime enhanced by ozone”, Journal of Materials Research and Technology, 15, 531-541.
• Kackar, R.N., (1985). Off-line quality control, parameter design and Taguchi methods, Journal of Quality Technology. Pan, D. A., Li, L., Tian, X., Wu, Y., Cheng, N. and Yu, H., (2019). “A review on lead slag generation, characteristics, and utilization”, Resources, Conservation and Recycling, 146, 140-155.
• Phadke, M.S., Kackar, R.N., Speeney, D.V. and Grieco, M.J. (1983). “Off-line quality control in integrated circuit fabrication using experimental design”, The Bell System Technical J., 62, 1273-1309.
• Qiu, K., Lin, D. and Yang, X., (2012). “Vacuum evaporation technology for treating antimony-rich anode slime.”, JOM, 64, 1321–1325.
• Ross, P.J. (1988). Taguchi Techniques for Quality Engineering, McGraw-Hill, New York.
• Rüşen, A. and Topcu, M. A., (2017). “Optimization of Gold Recovery from Copper Anode Slime by Acidic Ionic Liquid”, Korean J Chem. Eng., 34, 2958–2965.