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http://dx.doi.org/10.9719/EEG.2020.53.2.183

The Selection Effect of Native Gold and Magnetite by Microwave-nitric Acid Leaching and Magnetic/hydro Separation  

Lee, Jong-Ju (Dept. of Energy and Resource Engineering, Chosun University)
Park, Cheon-Young (Dept. of Energy and Resource Engineering, Chosun University)
Publication Information
Economic and Environmental Geology / v.53, no.2, 2020 , pp. 183-196 More about this Journal
Abstract
This study aimed to recover native gold from the concentrate using microwave-nitric acid leaching and magnetic/hydro separation experiments. The insoluble-residue was filtered from leaching solution through microwave-nitric acid leaching experiment. As a result of the atomic absorption spectrometer(AAS) analysis of the filtered leaching solution, it was discovered that Au content was not eluted at all and it was observed from the back scattered electron(BSE) image that native gold was liberated in the insoluble-residue. When magnetic/hydro separation experiments were applied for the insoluble-residue, magnetic and non magnetic minerals were separtated from insoluble-residue. Magnetite was recovered from the magnetic minerals and as a result of applying the hydro separation experiment again for the non-magnetic mineral, native gold was recovered. The native gold was identified through the X-ray diffraction(XRD) analysis and BSE image.
Keywords
microwave-nitric acid leaching; magnetic/hydro separation; native gold; liberation; magnetite;
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Times Cited By KSCI : 6  (Citation Analysis)
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1 Aydogan, S., Erdemoglu, M., Ucar, G. and Aras, A. (2007) Kinetics of galena dissolution in nitric acid solutions with hydrogen peroxide, Hydrometallurgy, v.88, p.52-57.   DOI
2 Bhattacharya, M. and Basak, T. (2016) A review on the susceptor assisted microwave processing of materials, Energy, v.97, p.306-338.   DOI
3 Cabri, L.J., Rudashevsky, N.S., Rudashevsky, V.N. and Gorkovetz, V.Y. (2008a) Study of native gold from the Luopensulo deposit(Kostomuksha area, karelia, Russia) using a combination of electric pulse disaggregation (EPD) and hydroseparation(HS), Minerals Engineering, v.21, p.463-470.   DOI
4 Cabri, L.J., Rudashevsky, N.S., Rudashevsky, V.N. and Oberthur, T. (2008b) Electric-pulse disaggregation(Epd), hydroseparation(Hs) and their use in combination for mineral processing and advance characterization of ores, In Proceedings Canadian Mineral Processors, 40th Annual Meeting, Ottawa, p.211-235.
5 Cho, K.H., Lee, J.J. and Park, C.Y. (2020) Liberation of gold using microwave-nitric acid leaching and separation-recovery of native gold by hydro-separation, Minerals, v.10, p.327(1-12).   DOI
6 Dmitry, V., Irina, K., Alexander, A., Alika, V. and Dianchun, J. (2019) Magnetite and Carbon Extraction from Coal Fly Ash Using Magnetic Separation and Flotation Methods, Minerals, v.9, p.1-13.   DOI
7 Gao, G., Li, D., Zhou, Y., Sun, X. and Sun, W. (2009) Kinetics of high-sulphur and high-arsenic refractory gold concentrate oxidation by dilute nitric acid under mild conditions, Minerals Engineering, v.22, p.111-115.   DOI
8 Haque, K.E. (1999) Microwave energy for mineral treatment processes-a brief review, International Journal of Mineral Processing, v.57, p.1-24.   DOI
9 Hough, R.M., Noble, R.R.P. and Erich, M. (2011) Natural gold nanoparticles, Ore Geology Reviews, v.42, p.55-61.   DOI
10 Ibrahim, T.M.M. and El-Hussaini, O.M. (2007) Production of anhydrite-gypsum and recovery of rare earths as a by-product, Hydrometallurgy, v.87, p.11-17.   DOI
11 Kadioglu, Y., Karaca, S. and Bayrakceken, S. (1995) Kinetics of pyrite oxidation in aqueous suspension by nitric acid, Fuel processing Technology, v.41, p.273-287.   DOI
12 Kalinin, Y.A., Kovalev, K.R., Naumov, E.A. and Kirillov, M.V. (2009) Gold in the weathering crust at the Suzdal' deposit(Kazakhstan), Russian Geology and Geophysics, v.50, p.174-187.   DOI
13 Kim, H.S., Myung, E.J. and Park, C.Y. (2019a) Removal of penalty from invisible gold concentrate using microwave-nitric acid leaching and its gold recovery by lead-fire assay, J. Korean Soc. Miner. Energy Resour. Eng., v.56, p.217-226.   DOI
14 Kim, H.S., Oyunbileg, P. and Park, C.Y. (2019b) A study on the removal of penalty elements and the improvement of gold contents from gold concentrate using microwave-nitric acid leaching, J. Miner. Soc. Korea, v.32, p.1-14.   DOI
15 Kirillov, M.V., Bortnikova, S.B. and gaskova, O.L. (2016) Authigenic gold formation in the cyanidation tailings of gold-arsenopyrite-quartz ore of Komsomolsk deposit(Kuznetaki Alatau, Russia), Environ Earth Sci., v.75, p.1050(1-11).   DOI
16 Lee, J.J., Myung, E.J. and Park, C.Y. (2019a) The effective recovery of gold from the invisible gold concentrate using microwave-nitric acid leaching method, J. Miner. Soc. Korea, v.32, p.185-200.   DOI
17 Larizzatti, J.H., Oliveira, S.M.B. and Butt, C.R.M. (2008) Morphology and composition of gold in a lateritic profile, Fazenda Pison "Garimpo", Amazon, Brazil, South American Earth Sciences, v.25, p.359-376.   DOI
18 Lee, J.J. and Park, C.Y. (2020) Observability of invisible gold using BSE image and gold recovery by microwave-nitric acid leaching, J. Korean Soc. Miner. Energy Resour. Eng., v.57, p.1-11.   DOI
19 Lee, J.J. and Park, C.Y. (2019) The recovery of invisible gold using filter paper, J. Korean Soc. Miner. Energy Resour. Eng., v.56, p.315-325.   DOI
20 Lee, J.J., On, H.S. and Park, C.Y. (2019b) Gold recovery from Geumsan concentrate using microwave-nitric acid leaching and lead-fire assay, J. Miner. Soc. Korea, v.32, p.113-126.   DOI
21 Levenspiel, O. (1999) Chemical reaction engineering, John Wiley & Sons, 668p.
22 Li, Q., Zhang, Y., Liu, X., Xu, B., Yang, Y. and Jiang, T. (2017) Improvement of gold leaching from a refractory gold concentrate calcine by separate pretreatment of coarse and fine size fractions, Minerals, v.7, p.1-12.   DOI
23 Makanza, A.T., Vermaak, M.K.G. and Davidtz, J.C. (2008) The flotation of auriferous pyrite with a mixture of collectors, International Journal of Mineral Processing, v.86, p.85-93.   DOI
24 Michel, D. (1987) Concentration of gold in in situ laterites from Mato Grosso, Mineralium Deposita, v.22, p.185-189.   DOI
25 Rees, K.L. and van Deventer, J.S.J. (2000) Preg-robbing phenomena in the cyanidation of sulphide gold ores, Hydrometallurgy, v.58, p.61-80.   DOI
26 Oberthur, T., Melcher, F., Sitnikova, M., Pudashevsky, N.S., Rudashevsky, V.N., Cabri, L.J., Lodziak, L., Klosa, D. and Gast, L. (2008) Combination of novel mineralogical methods in the study of noble metal ores-focus on pristine(Bushveld, Great Dyke) and placer platinum mineralisation, Ninth International Congress for Applied Mineralogy, Brisbane, QLD, 8-10 September, 187-193.
27 Oghbaei, M. and Mirzaee, O. (2010) Microwave versus conventional sintering: a review of fundamentals, advantages and applications, Journal of Alloys and Compounds, v.494, p.175-189.   DOI
28 Pickles, C.A. (2009) Microwave in extractive metallurgy: Part 2- A review of application, Mineral Engineering, v.22, p.1112-1118.   DOI
29 Reich, M., Kesler, S.E., Utsunomiya, S., Palenik, C.S., Chryssoulis, S.L. and Ewing, R. (2005) Solubility of gold in arsenian pyrite, Geochimica et Cosmochimica Acta, v.69, p.2781-2796.   DOI
30 Vikentyev, I.V., Yudovskaya, M.A., Mokhov, A.V., Kerzin, A.L. and Tsepin, A.I. (2004) Gold and PGE in massive sulfide ore of the Uzelginsk deposit, southerna Urals, Russia, The Canadian Mineralogist, v.42, p.651-665.   DOI