The Study on Au Losses in the Glassy Slag During the Lead-fire Assay

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2012 Vol.49, Issue 5 Preview Page Next Page

Research Paper

The Study on Au Losses in the Glassy Slag During the Lead-fire Assay 납-시금법에서 유리질 슬래그로 손실되는 gold 함량과 손실 원인에 대한 연구: 조강희·김봉주·위대웅·오스지·최승환·성규열·최낙철·박천영
Kang-Hee Cho, Bong-Ju Kim, Dae-Woong Wi, Su-Ji Oh, Seoung-Hwan Choi, Kyu-Youl Sung, Nag-Choul Choi and Cheon-Young Park

31 October 2012. pp. 654-662

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Abstract

In order to investigate the reason for gold losses in the lead-fire assay, the salt, galena, lead, and quartz were observed from the results of XRD analysis for the glassy slag from the flux mixture process. In the lead-fire assay, the gold losses were determined to be 20.98% in the slag of the rock, while the gold losses were 12.55% in the slag of the concentrate. The reason for the gold losses in the slag was explained that it may not be effectively decomposed from the quartz and precipitated by the lead in the lead-fire assay process. The borax was suggested to be more effective in reducing gold losses in the concentrate than in the rock.

Keywords

Gold losing

Lead-fire assay

Glassy slag

Flux mixture

납-시금법에서 슬래그로 손실되는 금 손실원인을 규명하고자 하였다. 암석과 정광에 대하여 융제혼합으로 시금법을 수행하고 그 슬래그에 대하여 XRD분석한 결과 방연석, 소금, 납 및 석영이 관찰되었다. 시금법을 수행한 결과, 암석의 슬래그에서 금 손실이 평균 19.86 %인 반면에 정광의 슬래그에서는 평균 12.55 %이였다. 슬래그에서 금이 손실되는 원인은 시금 과정에서 석영이 효과적으로 융해되지 못하였기 때문에 그리고 납이 효과적으로 침전되지 못했기 때문에 일어난 것으로 사료된다. 시금법에서 암석보다 정광에서 금 손실을 줄이는데 붕사가 효과적임을 확인하였다.

키워드

금 손실

납-시금법

유리질 슬래그

융제혼합

References

이승열, 양경희, 전병근, 백길, 고상모, 서정률, 2009, “전남 해남의 순신 금광산 지역에 산출하는 응회암질에 포획된 유리포유물,” 암석학회지, 제18권 4호, pp. 337-348.
유봉철, 이길재, 고상모, 유병운, 2010, “삼성 금-은광산의 생성환경: 광석광물, 유체포유물 및 안정동위원소 연구,” 자원환경지질, 제43권 5호, pp. 443-453.
Allan, G.C. and Woodcock, J.T., 2001, “A review of the flotation of native gold and electrum,” Minerals Engineering, Vol. 14, pp. 931-962.
Baker, W.E., 1985, “Gold analysis,” URI, Vol. 49, pp. 1-6.
Balcerzak, M., 2002, “Sample digestion methods for the determination of traces of precious metals by spectrometric techniques,” Analytical Sciences, Vol. 18, pp. 737-750.
Barefoot, R.R. and van Loon, J.C., 1999, “Recent advances in the determination of the platinum group elements and gold,” Talanta, Vol. 49, pp. 1-14.
Bedard, L.P. and Barnes, S.J., 2004, “Improved platinum-group element extraction by NiS fire assay from chromitite ore samples using a flux containing sodium metaphosphate”, Geostandards and Geoanalytical Research, Vol. 28, pp. 311-316.
Bugbee, E.E., 1949, “A textbook fire assaying”, John Wiley & Sons, Inc., p. 314.
Guerra, E. and Dreisinger, D.B., 1999, “A study of the factors affecting copper cementation of gold from ammoniacal thiosulfate solution,” Hydrometallurgy, Vol. 51, pp. 155-172.
Johnson, W.M. and Maxwell, J.A., 1981, “Rock and mineral analysis,” John Wiley & Sons, p. 489.
Juvonen, M.R., Bartha, A., Lakomaa, T.M., Soikkeli, L.A., Bertalan, E., Kallio, E.I. and Ballok, M., 2004, “Comparison of recoveries by lead fire assay and nickel sulfide fire assay in the determination of gold, platinum, palladium and rhenium in sulfide ore samples,” Geostandards and Geoanalytical Research, Vol. 28, pp. 123-130.
Juvonen, R. and Kontas, E., 1999, “Comparison of three analytical methods in the determination of gold in six finnish gold ores, inculding a study on sample preparation and sampling,” Journal of Geochemical Exploration, Vol. 65, pp. 219-229.
Juvonen, R. and Vaananen, P.J., 1993, “Determination of gold in geological materials by atomic absorption after lead fire assay separation,” Geological Survey of Finland, Report of Investigatiotin Vol. 114, pp. 13-16.
Liipo, J., 2003, “Characterization of the mode of occurrence of gold in Jokisivu pilot feed and products,” Minerals Engineering, Vol. 16, pp. 1317-1321.
McIntosh, K.S., Auer, D., Koch, K.R. and Eksteen, J.J., 2006, “Integrating pyrometallurgy and robotic systems engineering: fuly automated fire assay laboratory for rapid PGE analysis,” Minerals Engineering, Vol. 19, pp. 219-231.
Potts, P.J., 1987, “A handbook of silicate rock analysis,” Blackie, p. 622.
Rao, C.R.M. and Reddi, G.S., 2000, “Platinum group metals(PGM); occurance, use and recent trends in their determination,” Trends in Analytical Chemistry, Vol. 19, pp. 565-586.
Suominen, M., Kontas, E., Niskavaara, H., 2004, “Comparison of silver and gold inquarting in the fire assay determination of Palladium, Platinum and Rhodium in geological samples,” Geostandards and Geoanalytical Research, Vol. 28, pp. 131-136.
Turan, A. and Yucel, O., 2011, “The effect of iron and oxidizing flux addition on the ire assay of low grade pyritic refractory gold ores,” Journal of Mining and Metallurgy, Vol. 47, pp. 219-227.
van Loon, J., 1977, “Analytical chemistry of the noble metals,” Pure & Appl. Chem., Vol. 49, pp. 1495-1505.

Information

Publisher :The Korean Society of Mineral and Energy Resources Engineers
Publisher(Ko) :한국자원공학회
Journal Title :Journal of the Korean Society for Geosystem Engineering
Journal Title(Ko) :한국지구시스템공학회지
Volume : 49
No :5
Pages :654-662

[1] 이승열, 양경희, 전병근, 백길, 고상모, 서정률, 2009, “전남 해남의 순신 금광산 지역에 산출하는 응회암질에 포획된 유리포유물,” 암석학회지, 제18권 4호, pp. 337-348.

[2] 유봉철, 이길재, 고상모, 유병운, 2010, “삼성 금-은광산의 생성환경: 광석광물, 유체포유물 및 안정동위원소 연구,” 자원환경지질, 제43권 5호, pp. 443-453.

[3] Allan, G.C. and Woodcock, J.T., 2001, “A review of the flotation of native gold and electrum,” Minerals Engineering, Vol. 14, pp. 931-962.

[4] Baker, W.E., 1985, “Gold analysis,” URI, Vol. 49, pp. 1-6.

[5] Balcerzak, M., 2002, “Sample digestion methods for the determination of traces of precious metals by spectrometric techniques,” Analytical Sciences, Vol. 18, pp. 737-750.

[6] Barefoot, R.R. and van Loon, J.C., 1999, “Recent advances in the determination of the platinum group elements and gold,” Talanta, Vol. 49, pp. 1-14.

[7] Bedard, L.P. and Barnes, S.J., 2004, “Improved platinum-group element extraction by NiS fire assay from chromitite ore samples using a flux containing sodium metaphosphate”, Geostandards and Geoanalytical Research, Vol. 28, pp. 311-316.

[8] Bugbee, E.E., 1949, “A textbook fire assaying”, John Wiley & Sons, Inc., p. 314.

[9] Guerra, E. and Dreisinger, D.B., 1999, “A study of the factors affecting copper cementation of gold from ammoniacal thiosulfate solution,” Hydrometallurgy, Vol. 51, pp. 155-172.

[10] Johnson, W.M. and Maxwell, J.A., 1981, “Rock and mineral analysis,” John Wiley & Sons, p. 489.

[11] Juvonen, M.R., Bartha, A., Lakomaa, T.M., Soikkeli, L.A., Bertalan, E., Kallio, E.I. and Ballok, M., 2004, “Comparison of recoveries by lead fire assay and nickel sulfide fire assay in the determination of gold, platinum, palladium and rhenium in sulfide ore samples,” Geostandards and Geoanalytical Research, Vol. 28, pp. 123-130.

[12] Juvonen, R. and Kontas, E., 1999, “Comparison of three analytical methods in the determination of gold in six finnish gold ores, inculding a study on sample preparation and sampling,” Journal of Geochemical Exploration, Vol. 65, pp. 219-229.

[13] Juvonen, R. and Vaananen, P.J., 1993, “Determination of gold in geological materials by atomic absorption after lead fire assay separation,” Geological Survey of Finland, Report of Investigatiotin Vol. 114, pp. 13-16.

[14] Liipo, J., 2003, “Characterization of the mode of occurrence of gold in Jokisivu pilot feed and products,” Minerals Engineering, Vol. 16, pp. 1317-1321.

[15] McIntosh, K.S., Auer, D., Koch, K.R. and Eksteen, J.J., 2006, “Integrating pyrometallurgy and robotic systems engineering: fuly automated fire assay laboratory for rapid PGE analysis,” Minerals Engineering, Vol. 19, pp. 219-231.

[16] Potts, P.J., 1987, “A handbook of silicate rock analysis,” Blackie, p. 622.

[17] Rao, C.R.M. and Reddi, G.S., 2000, “Platinum group metals(PGM); occurance, use and recent trends in their determination,” Trends in Analytical Chemistry, Vol. 19, pp. 565-586.

[18] Suominen, M., Kontas, E., Niskavaara, H., 2004, “Comparison of silver and gold inquarting in the fire assay determination of Palladium, Platinum and Rhodium in geological samples,” Geostandards and Geoanalytical Research, Vol. 28, pp. 131-136.

[19] Turan, A. and Yucel, O., 2011, “The effect of iron and oxidizing flux addition on the ire assay of low grade pyritic refractory gold ores,” Journal of Mining and Metallurgy, Vol. 47, pp. 219-227.

[20] van Loon, J., 1977, “Analytical chemistry of the noble metals,” Pure & Appl. Chem., Vol. 49, pp. 1495-1505.

Journal of the Korean Society of Mineral and Energy Resources Engineers ISSN:2288-0291(Print) 2288-2790(Online) 한국자원공학회지

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