Froth Flotation of Au-Ag Ore from Epithermal Deposit in Haenam

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2011 Vol.48, Issue 6 Preview Page Next Page

Froth Flotation of Au-Ag Ore from Epithermal Deposit in Haenam 해남 천열수 금은 광석의 부유선별 특성: 한인규, 안용준, 지세정, 배광현, 김형석
In-Kyu Han, Yong-Jun Ahn, Se-Jung Chi, Kwang-hyun Bae and Hyung-Seok Kim

31 December 2011. pp. 701-712

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Abstract

Gold-silver raw ore from epithermal deposit in Haenam region consists of 79.3% of SiO2, 10.4% of Al2O3, 2.7% of K2O, 1.7% of SiO2, 6.1 g/t of Au and 48.3g/t of Ag, respectively. It also include various gold and silver alloys such as electrum(Au-Ag), sylvanite(AuAgTe4), calaverite(AuTe2), and stuetzite(Ag5-XTe3). The size of gold-silver alloys are from 20 ㎛ to 150 ㎛ and they not only exists alone but also with pyrite (FeS2), galena (PbS), sphalerite (ZnS) and chalcopyrite (CuFeS2). The best gold and silver recovery has been obtained by using potassium amyl xanthate and Aeropromoter 3477 collectors in the pH range of 3.0～5.0 and the particle size of under 200 mesh. When the rougher concentrate were floated by potassium amyl xanthate through three times, the grade and recovery of gold were 138.4 g/t and 81.7%, respectively; and the grade and recovery of silver were 1,014 g/t and 77.3%, respectively. Also, when Aeropromoter 3477 collector was used under the above same conditions, the grade and recovery of gold were 141.8 g/t and 77.1%, respectively; and the grade and recovery of silver were 1,009 g/t and 79.2%, respectively.

Keywords

Gold

Silver

Electrum

Pyrite

Flotation

해남지역 천열수 금․은 광상의 원광에는 SiO2 성분이 79.3%, Al2O3가 10.4%, K2O가 2.7%, Fe2O3가 1.7% 정도 함유되어 있고, 금과 은이 각각 6.1 g/t 및 48.3 g/t 정도 함유되어 있다. 금․은 광물은 엘렉트럼(electrum, Au-Ag), 실바나이트(sylvanite, AuAgTe4), 칼라버라이트(calaverite, AuTe2) 및 스퉤트자이트(stuetzite, Ag5-xTe3) 등의 다양한 화합물로 20 ㎛∼150 ㎛의 크기로 주로 존재하였다. 이들 함금․은 광물은 황철석(pyrite, FeS2), 방연석(galena, PbS), 섬아연석(sphalerite, ZnS) 및 황동석(chalcopyrite, CuFeS2) 등의 황화광물과 일부 수반되어 존재하기도 하였다. Potassium amyl xanthate와 Aeropromoter 3477로 금․은 광석을 부유선별 하였을 때 금 및 은의 품위와 실수율은 입도가 200 mesh이하이고 pH가 3.0∼5.0 이었을 때 가장 높았다. 1차 조선 정광을 대상으로 potassium amyl xanthate를 사용하여 3회 정선 하였을 때, 금의 품위 및 실수율이 각각 138.4 g/t 및 81.7%이었고, 은의 품위 및 실수율이 각각 1,014 g/t 및 77.3%이었다. 동일한 부선조건에서 Aeropromoter 3477을 사용한 결과, 금의 품위 및 실수율이 각각 141.8 g/t 및 77.1%이었고, 은의 품위 및 실수율이 각각 1,009 g/t 및 79.2%이었다.

키워드

금

은

엘렉트럼

황철석

부유선별

References

강현호, 신승한, 홍종원, 한오형, 2010, “금 부선에서 임펠러의 회전속도와 압축공기 주입량에 따른 영향,” 한국지구시스템공학회지, 제47권 6호, pp. 844-851.
김창성, 최선규, 유인창, 김상엽, 유봉철, 이현구, 2005, “해남지역 은산 및 모이산 천열수 금은광상의 유체진화,” 제38회 춘계 학술발표회 논문집, 대한자원환경지질학회, 고려대학교, 서울, 4월 21-22, pp. 86-89.
김형석, 정수복, 2009, “금․ 은 광석의 선광기술,” 한국광물학회지, 제22권 2호, pp. 36-51.
신승한, 강현호, 홍종원, 이진수, 박제현, 한오형, 2010, “금부선 광미로부터 금의 회수에 관한 연구,” 자원리싸이클링학회지, 제19권 6호, pp. 61-69.
이강문, 1995, 광물처리공학, 반도출판사, pp. 278-279.
이길재, 고상모, 2010, “전남 해남 모이산 천열수 금 광상의 지질 및 광화작용 특성,” 한국암석학회지, 제14권 9호, pp. 931-962.
Allan, G.C. and Woodcock, J.T., 2001, “A Rview of the Flotation of Native Gold and Electrum,” Minerals Engineering, Vol. 14, No. 9, pp. 931-962.
Anhaeusser, C.R., Feather, C.E., Liebenberg, W.R., Smits, G.E. and Snegg, F.A., 1987, “Geology and mineralogy of the principal goldfields in South Africa, Johannesburg,” Extractive Metallurgy of Gold in South Africa, pp. 1-67.
Basilio, C.I., Kim, D.S., Yoon, R.H. and Nagaraj, D.R., 1992, “Studies on the Use of Monothiophosphates for Precious Metals Flotation,” Minerals engineering, Vol. 5, No. 3-5, pp. 397-409.
Beattie, D.A., Kempson, I.M., Fan, L.-J. and Skinner, W.M., 2009, “Synchrotron XPS Studies of Collector Adsorption and Co-adsorption on Gold and Gold : Silver Alloy Surfaces,” Int. J. Miner. Process., Vol. 92, pp. 162-168.
Desborough, G.A., 1970, “Silver depletion indicated by microanalysis of gold from placer occurrences, western United States,” Economic Geology, Vol. 65, pp. 304-311.
Desborough, G.A., Raymond, W.H. and Iagmin, P.J., “Distribution of silver and copper in placer gold derived the northeastern part of the Colorado mineral belt,” Economic Geology, Vol. 65, pp. 937-944.
Brookins, D.G., 1988, Eh-pH Diagrams for Geochemistry, Springer-Verlag, Berlin, pp. 64-67.
Finkelstein, N.P. and Poling, G.W., 1977, “The Role of Dithiolates in the Flotation of Sulphide Minerals,” Mineral Sci. Engng., Vol. 9, pp. 177-197.
Leppinen, J.O., Yoon, R.H. and Mielczarski, J.A., 1991, “FT-IR studies of ethyl xanthate adsorption on gold, silver and gold-silver alloys,” Colloids and Surfaces, Vol. 61, pp. 189-203.
Monte, M.B., Lins, F.F. and Oliveira, J.F., 1997, “Selective Flotation of Gold from pyrite under Oxidizing Conditions,” Int. J. Miner. Process, Vol. 51, pp. 255-267.
Woods, R., 1984, “Electrochemistry of Sulfide Flotation,” Principles of Mineral Flotation, Melbourne: The Australasian Institute of Mining and Metallurgy.

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 : 48
No :6
Pages :701-712

[1] 강현호, 신승한, 홍종원, 한오형, 2010, “금 부선에서 임펠러의 회전속도와 압축공기 주입량에 따른 영향,” 한국지구시스템공학회지, 제47권 6호, pp. 844-851.

[2] 김창성, 최선규, 유인창, 김상엽, 유봉철, 이현구, 2005, “해남지역 은산 및 모이산 천열수 금은광상의 유체진화,” 제38회 춘계 학술발표회 논문집, 대한자원환경지질학회, 고려대학교, 서울, 4월 21-22, pp. 86-89.

[3] 김형석, 정수복, 2009, “금․ 은 광석의 선광기술,” 한국광물학회지, 제22권 2호, pp. 36-51.

[4] 신승한, 강현호, 홍종원, 이진수, 박제현, 한오형, 2010, “금부선 광미로부터 금의 회수에 관한 연구,” 자원리싸이클링학회지, 제19권 6호, pp. 61-69.

[5] 이강문, 1995, 광물처리공학, 반도출판사, pp. 278-279.

[6] 이길재, 고상모, 2010, “전남 해남 모이산 천열수 금 광상의 지질 및 광화작용 특성,” 한국암석학회지, 제14권 9호, pp. 931-962.

[7] Allan, G.C. and Woodcock, J.T., 2001, “A Rview of the Flotation of Native Gold and Electrum,” Minerals Engineering, Vol. 14, No. 9, pp. 931-962.

[8] Anhaeusser, C.R., Feather, C.E., Liebenberg, W.R., Smits, G.E. and Snegg, F.A., 1987, “Geology and mineralogy of the principal goldfields in South Africa, Johannesburg,” Extractive Metallurgy of Gold in South Africa, pp. 1-67.

[9] Basilio, C.I., Kim, D.S., Yoon, R.H. and Nagaraj, D.R., 1992, “Studies on the Use of Monothiophosphates for Precious Metals Flotation,” Minerals engineering, Vol. 5, No. 3-5, pp. 397-409.

[10] Beattie, D.A., Kempson, I.M., Fan, L.-J. and Skinner, W.M., 2009, “Synchrotron XPS Studies of Collector Adsorption and Co-adsorption on Gold and Gold : Silver Alloy Surfaces,” Int. J. Miner. Process., Vol. 92, pp. 162-168.

[11] Desborough, G.A., 1970, “Silver depletion indicated by microanalysis of gold from placer occurrences, western United States,” Economic Geology, Vol. 65, pp. 304-311.

[12] Desborough, G.A., Raymond, W.H. and Iagmin, P.J., “Distribution of silver and copper in placer gold derived the northeastern part of the Colorado mineral belt,” Economic Geology, Vol. 65, pp. 937-944.

[13] Brookins, D.G., 1988, Eh-pH Diagrams for Geochemistry, Springer-Verlag, Berlin, pp. 64-67.

[14] Finkelstein, N.P. and Poling, G.W., 1977, “The Role of Dithiolates in the Flotation of Sulphide Minerals,” Mineral Sci. Engng., Vol. 9, pp. 177-197.

[15] Leppinen, J.O., Yoon, R.H. and Mielczarski, J.A., 1991, “FT-IR studies of ethyl xanthate adsorption on gold, silver and gold-silver alloys,” Colloids and Surfaces, Vol. 61, pp. 189-203.

[16] Monte, M.B., Lins, F.F. and Oliveira, J.F., 1997, “Selective Flotation of Gold from pyrite under Oxidizing Conditions,” Int. J. Miner. Process, Vol. 51, pp. 255-267.

[17] Woods, R., 1984, “Electrochemistry of Sulfide Flotation,” Principles of Mineral Flotation, Melbourne: The Australasian Institute of Mining and Metallurgy.

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