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Journals / Maden Tetkik ve Arama Dergisi / 2022 / Cilt: 168 - Sayı: 168

A comparison of ion-exchange resins and activated carbon in recovering gold from cyanide leach solutions with low levels of copper

Deus Albert MSUMANGE
Ersin Yener YAZICI
Oktay CELEP
Hacı DEVECİ
Pages
35–41
Publication Date
2022-08-18
DOI
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⚡ TL;DR(Too Long; Didn't Read)

Therefore, the order of selectivity of the adsorbents tested was as follows: Purogold S992 > Activated carbon > Purogold A194.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:This study was conducted to determine the effectiveness of three different adsorbents for the adsorption of gold from a real cyanide leach liquor.
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Key Findings & Data:An activated carbon (NORIT GAC 1240), strong base (Purogold A194), and weak base (Purogold S992) resins were tested as the adsorbents.
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Conclusion & Impact:Therefore, the order of selectivity of the adsorbents tested was as follows: Purogold S992 > Activated carbon > Purogold A194.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Copper-Rich Gold Ore · Gold Adsorption · Activated Carbon

Abstract

This study was conducted to determine the effectiveness of three different adsorbents for the adsorption of gold from a real cyanide leach liquor. An activated carbon (NORIT GAC 1240), strong base (Purogold A194), and weak base (Purogold S992) resins were tested as the adsorbents. The pregnant leach solution (PLS) was derived from cyanide leaching (1.5 g/L NaCN, 25% w/w solids ratio, 1.5 L/min air flow rate, pH 10.5 – 11, 24 h) of the roasted copper-rich refractory gold ore pretreated with H2SO4. Gold and copper concentrations in the PLS were analysed to be 26.1 mg/L Au and 62.4 mg/L Cu, respectively. Activated carbon was found to be the best performing adsorbent as it achieved the highest gold loading. Purogold A194 loaded the highest amount of copper amongst the adsorbents tested. Despite the fact that activated carbon loaded a high amount of gold, it was less selective than Purogold S992. Purogold A194 exhibited the lowest selectivity, which was defined as the distribution ratio of gold to copper, compared with Purogold S992 and activated carbon. Therefore, the order of selectivity of the adsorbents tested was as follows: Purogold S992 > Activated carbon > Purogold A194.

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Cite This Article

MSUMANGE, D. A., YAZICI, E. Y., CELEP, O., DEVECİ, H. (2022). A comparison of ion-exchange resins and activated carbon in recovering gold from cyanide leach solutions with low levels of copper. Maden Tetkik ve Arama Dergisi, Cilt: 168 - Sayı: 168, 35–41. https://ajindex.com/articles/687116

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References (8)

  1. Adams, M. D. 2016. Gold Ore Processing: Project Development and Operations. Elsevier, 15(2). Ahlatcı, F., Koç, E., Yazıcı, E., Celep, O., Deveci, H. 2018. Adsorption of heavy metals from waste cyanide solutions with anionic resins, Scientific Mining Journal 57, 17-22.
  2. Bas, A. D., Yazıcı, E. Y., Deveci, H. 2012. Treatment of copper - rich gold ores by ammonia assisted cyanide leaching. Proceedings of the XXVI International Mineral Processing Congress (IMPC), New Delhi, India, 356−365. Bas, A. D., Koç, E., Yazıcı, E. Y., Deveci, H. 2015. Treatment of copper - rich gold ore by cyanide leaching, ammonia pretreatment, and ammoniacal cyanide leaching. Transactions of Nonferrous Metals Society of China 25 (2), 597-607.
  3. Chryssoulis, S. L., Mcmullen, J. 2016. Mineralogical Investigation of Gold Ores: Gold Ore Processing - Project Development and Operations. Elsevier, 57-93.
  4. Dai, X., Simons, A., Breuer, P. 2012. A Review of copper cyanide recovery technologies for the cyanidation of copper containing gold ores. Minerals Engineering 25, 1-13.
  5. Fleming, C. A., Cromberge, G. 1984. The elution of aurocyanide from strong- and weak- base resins. Journal of the South African Institute of Mining and Metallurgy 84(9), 269-280.
  6. Fleming, C. A., Mezei, A., Bourricaudy, E., Canizares, M., Ashbury, M. 2011. Factors influencing the rate of gold cyanide leaching and adsorption on activated carbon, and their impact on the design of CIL and CIP circuits. Minerals Engineering 24(6), 484–494.
  7. Habashi, F. 1999. A Textbook of Hydrometallurgy. Metallurgie Extractive Quebec Publications, Canada, 220-223.
  8. Kotze, M. 2010. Gold ion exchange. ALTA 2010 Gold Conference. ALTA Metallurgical Services, Melbourne, Australia. Kotze, M., Green, B., Mackenzie, M., Virnig, M. 2005. Resin - in - Pulp and Resin – in - Solution.: Advances in Gold Ore Processing. Elsevier Science, 15. Marsden, J., House, I. 2006. The Chemistry of Gold Extraction. The Society for Mining Metallurgy and Exploration Incorporated, USA 2, 318-392. Medusa, 2009. Software for chemical equilibrium diagrams, 32 bit version. Royal Institute of Technology, Sweden. Msumange, D. A. 2019. Recovery of gold from copper -rich ores using ion exchange resins. Master Thesis, Karadeniz Technical University, The Graduate School of Natural and Applied Sciences, Department of Mining Engineering, Trabzon. Msumange, D. A., Yazıcı, E. Y., Celep, O., Deveci, H. 2020. Investigation of the amenability of a copper - rich refractory gold ore to cyanide leac