Browse > Article
http://dx.doi.org/10.9719/EEG.2019.52.6.595

The Dissolution Efficiency of Gold Concentrate with Microwave-nitric Acid Leaching and the Recovery of Invisible Gold Using the Filter Paper  

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.52, no.6, 2019 , pp. 595-604 More about this Journal
Abstract
The purpose of this study was simply to obtain gold through a microwave-nitric acid experiment of invisible gold concentrate with the use of filter paper. For the purpose, this study conducted a microwave-nitric acid leaching experiment and examined nitric acid concentration. As a result of the experiment, this study discovered that Fe, Te and Ag were completely leached in the leaching solution whereas Au was not determined in all of the nitric acid conditions. The leaching solution was filtered with three filter papers and then these filter papers were analyzed with SEM/EDS. As a result of the EDS analysis, Au was detected in all of the surface and cross-section of the 1st, 2nd and 3rd filter papers. As the three filter papers containing solid-residue were analysed in the lead-fire assay, gold particles were found in all of the nitric acid conditions. In the lead-fire assay, maximum gold(452.50g/t) was recovered when nitric acid concentration was 6M and microwave leaching time was 12mins.
Keywords
invisible gold; microwave-nitric acid leaching; filter paper; filtration; gold particle;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 Dominy, S.C., Platten, I.M. and Raine, M.D. (2003) Grade and geological continuity in high-nugget effect gold-quartz reefs: implications for resource estimation and reporting, Applied Earth Science, v.112, p.B239-B259.   DOI
2 Droppert, D.J. and Shang, Y. (1995) The leaching behaviour of nickeliferous pyrrhotite concentrate in hot nitric acid, Hydrometallurgy, v.39, p.169-182.   DOI
3 Fair, K.J. and Basa, F.J. (1989) Treatment of Agnico Eagle's silver-bearing flotation concentrate by the nitrox process, Processing of Complex Ores, v.20-24, p.411-420.   DOI
4 Fair, K.J., Schneider, J.C. and van Weert, G. (1987) Options in the Nitrox process, Proceedings of the metallurgical Society of the Canadian Institute of Mining and metallurgy, p.279-291.
5 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
6 Guo, W., Ngo, H.H. and Li, J. (2012) A mini-review on membrane fouling, Bioresource Technology, v.122, p.27-34.   DOI
7 Habashi, F. (1973) Action of nitric acid on chalcopyrite, Transactions, v.254, p.224-228.
8 Hasab, M.G., Rashchi, F. and Raygan, S. (2013) Simultaneous sulfide oxidation and gold leaching of a refractory gold concentrate by chloridehypochlorite solution, Minerals Engineering, v.50-51, p.140-142.   DOI
9 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
10 Iritani, E., Katagiri, N., Takenaka, T. and Yamashita, Y. (2015) Membrane pore blocking during cake formation in constant pressure and constant flux dead-end microfiltration of very dilute colloids, Chemical Engineering Science, v.122, p.465-473.   DOI
11 Kim, B.J., Cho, K.H., Jo, J.Y., Choi, N.C. and Park, C.Y. (2014) The characteristic of Te recovery in gold concentrate using electrolysis, Econ. Environ. Geol., v.47, p.645-655.   DOI
12 Kim, E., Horckmans, L., Soppren, J., Vrancken, K.C., Quaghebeur, M. and Broos, K. (2017) Selective leaching of Pb, Cu, Ni and Zn from secondary lead smelting residues, Hydrometallurgy, v.169, p.372-381.   DOI
13 Kim, H.S., Oyunbileg, P. and Park, C.Y. (2019a) 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
14 Kim, H.S., Myung, E.J. and Park, C.Y. (2019b) 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
15 Komnitsas, C. and Pooley, F.D. (1989) Mineralogical characteristics and treatment of refractory gold ores, Minerals Engineering, v.2, p.449-457.   DOI
16 La Brooy, S.R., Linge, H.G. and Walker, G.S. (1994) Review of gold extraction from ores, Minerals Engineering, v.7, p.1213-1241.   DOI
17 McDonald, I., Hart, R.J. and Tredoux, M. (1994) Determination of the platinum-group elements in South African kimberlite by nickel sulphide fireassay and neutron activation analysis, Analytical Chimica Acta, v.289, p.237-247.   DOI
18 Shirazi, S., Lin, C.J. and Chen, D. (2010) Inorganic fouling pressure-driven membrane processes- a critical review, Desalination, v.250, p.236-248.   DOI
19 Rao, C.R.M. and Reddi, G.S. (2000) Platinum group metals(PGM); occurrence, use and recent trends in their determination, Trends in Analytical Chemistry, v.19, p.565-586.   DOI
20 Jotanovic, A., memic, M., Suljagic, S. and Huremovic, J. (2012) Comparison of x-ray fluorescent analysis and cupellation method for determination of gold in gold jewellery alloy, Bulletin of the Chemists and Technologists of Bosnia and Herzegovina, v.38, p.13-18.
21 Wang, Y., Baker, L.A. and Brindle, I.D. (2016) Determination of gold and silver in geological samples by focused infrared digestion: a reinvestigation of aqua regia digestion, Talanta, v.148, p.419-426.   DOI
22 Yanuar, E. and Suprapto (2015) Leaching and adsorption of gold from lape-Sumbawa rocks(Indonesia) by hypochlorite-chloride, Procedia Chemistry, v.17, p.59-65.   DOI
23 Cheng, Y., Shen, S., Zhang, J., Chen, S., Xiong, L. and Liu, J. (2013) Fast and effective gold leaching from a desulfurized gold ore using acidic sodium chlorate solution at low temperature, Industrial & Engineering Chemistry Research, v.52, p.16622-16629.   DOI
24 Allan, G.C. and Woodcock, J.T. (2001) A review of the flotation of native gold and electrum, Minerals Engineering, v.14, p.931-962.   DOI
25 Antony, A., Low, J.H., Gray, S., Childress, A.E., Le-Clech, P. and Leslie, G. (2011) Scale formation and control in high pressure membrane water treatment systems: a review, Journal of Membrane Science, v.383, p.1-16.   DOI
26 Balcerzak, M. (2002) Sample digestion methods for the determination of traces of precious metals by spectrometruc techniques, Analytical Sciences, v.18, p.737-750.   DOI