인도네시아 잠비산 동광석의 부유선별 특성 연구

Froth Flotation of Copper Ore from Jambi Deposit, Indonesia

  • 김학순 (과학기술연합대학원대학교(UST) 자원순환공학) ;
  • 전호석 (한국지질자원연구원) ;
  • 김병곤 (한국지질자원연구원) ;
  • 백상호 (과학기술연합대학원대학교(UST) 자원순환공학)
  • Kim, Hak-Soon (Resource Recycling, University of Science & Technology (UST)) ;
  • Jeon, Ho-Seok (Korea Institute of Geoscience and Mineral resources) ;
  • Kim, Byoung-Gon (Korea Institute of Geoscience and Mineral resources) ;
  • Baek, Sang-Ho (Resource Recycling, University of Science & Technology (UST))
  • 투고 : 2010.09.15
  • 심사 : 2010.09.27
  • 발행 : 2010.09.30

초록

인도네시아 잠비산 복합 동광석을 대상으로 고품위 동 정광생산을 위한 부유선별 연구를 수행하였다. 본 연구에 사용된 시료는 대부분 탄산염인 공작석으로 이루어져 있으나, 일부 황화동이 존재하여 자연부유도가 높은 황화동을 먼저 부유선별에 의해 회수한 다음, 침강산물로부터 산화동 회수를 위한 공정을 적용하였다. 먼저 황화동 부유선별에서는 잔세이트(xanthate) 계열의 포수제인 AP-211과 AP-242를 1 : 1의 비율로 300 g/t 첨가하고, 광액 pH 6인 조건에서 Cu 품위와 회수율이 각각 57.7%와 9.5%인 동 정광을 얻었다. 그리고 침전된 산물을 대상으로 지방산 포수제인 올레인산을 300 g/t, 기포제 첨가량 50 g/t, 광액 pH 8.0, 그리고 정선횟수 2회인 조건에서 Cu의 품위와 회수율이 각각 30.8%와 92.1%인 결과를 얻었다. 회수된 황화동 및 산화동 정광을 합산한 결과 최종적으로 Cu의 품위와 회수율이 36.1%와 92.7%인 결과를 얻었다.

Froth flotation of complex copper ore from Indonesia Jambi mine has been carried out to produce high-grade Cu concentrate. Since the ore contained minor Cu sulfides in addition to major Cu carbonate (malachite), copper concentrate was recovered by two-stage process of flotation, which consisted of copper sulfide flotation using xanthate followed by copper oxide flotation using oleic acid. The copper sulfide concentrate of 57.5% Cu grade with 9.5% recovery was obtained by copper sulfide flotation under conditions of 300 g/t collector (1 : 1 mixture of xanthate series Aero Promoter 211 and Aero Promoter 242) and pH 6.0 pulp. In subsequent copper oxide flotation on sink products, the concentrate of 30.8% Cu grade with 92.1% recovery was obtained under the conditions of oleic acid 300 g/t, AF65 50 g/t, pH 8.0 and 2 times cleaning. The flotation techniques which can achieve a Cu grade of 36.1% and a recovery of 92.1% have been developed from the two-stage process of flotation.

키워드

참고문헌

  1. 김형석, 김완태, 한인규, 김상배 (2010) 포수제 변화에 따른 공작석의 부유선별 특성. 한국자원리싸이클링학회지, 19, 58-64.
  2. 한국자원정보서비스 (2010) www.kores.net.
  3. Deng, T. and Chen, J. (1991) Treatment of oxidised copper ores with emphasis on refractory ores. J. Int. Miner. Process., 7, 175-207.
  4. Goncalves, K.L.C., Andrade, V.L.L., and Peres A.E.C. (2003) The effect of grinding conditions on the flotation of a sulfide copper ore. Miner. Eng, 16, 1213-1216. https://doi.org/10.1016/j.mineng.2003.05.006
  5. Gorlovskii, S.I., Eropkiny, I., Kursakova, G.M., Koval, E.M., Stresin, V.G., Khobotova, N.P., and Shtchukina, E.E. (1969) Improvent in concentration technology of some raremetal ores, based on taking advantage of complexing alkyl hydroxamic acids peculiarties of action. Miner. Eng., 1, 298-413.
  6. Jones, M.H. and Woodcock, J.T. (1978) Optimization and control of laboratory sulphidisation of oxidized copper ores with an ion selective electrode. Miner. Eng., 6, 11-19.
  7. Kongolo, K., Kipoka, M., Minanga, K., and Mpoyo, M. (2003) Improving the efficiency of oxide copper-cobalt ores flotation by combination of sulphidisers. Miner. Eng., 16, 1023-1026. https://doi.org/10.1016/S0892-6875(03)00263-2
  8. Lee, K., Archibald, D., McLean, J., and Reuter, M.A. (2009) Flotation of mixed copper oxide and sulPhide minerals with xanthate and hydroxamate collectors. Miner. Eng., 22, 395-401. https://doi.org/10.1016/j.mineng.2008.11.005
  9. Nagaraj, D.R. (1987) The chemistry and application of chelating or complexing agents in mineral separations. Miner. Eng., 9, 257-334.
  10. Raghavan, S., Adamec, E., and Lee, L. (1984) Sulfidization and flotation of chrysocolla and brochantite. Miner. Eng., 12, 173-191. https://doi.org/10.2465/minerj.12.173
  11. Shen, W.Z., Fornasiero, D., and Ralston, J. (2001) Flotation of sphalerite and pyrite in the presence of sodium sulfite. Miner. Eng., 63, 17-28.
  12. Wei, Y. and Sandenbergh, R.F. (2007) Effects of grinding environment on the flotation of Pinah complex Pb/Zn ore. Miner. Eng., 20, 264-272. https://doi.org/10.1016/j.mineng.2006.09.010
  13. Wills, B.A. (1997) Mineral Processing Technology (6th ed). Butterworth, Heinemann.