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A Study on Separation of Limonite and Saprolite from Nickel Laterite Ores

니켈라테라이트광으로부터 리모나이트 및 사프로라이트의 분리선별 연구

  • Kim, Kee-Seok (Mineral Resources Research Division, Korea Institute of Geoscience and Mineral Resources Research Institute of Industrial Science & Technology) ;
  • Seo, Joo-Beom (Mineral Resources Research Division, Korea Institute of Geoscience and Mineral Resources Research Institute of Industrial Science & Technology) ;
  • Bea, In-Kook (Mineral Resources Research Division, Korea Institute of Geoscience and Mineral Resources Research Institute of Industrial Science & Technology) ;
  • Bae, Kwang-Hyun (Mineral Resources Research Division, Korea Institute of Geoscience and Mineral Resources Research Institute of Industrial Science & Technology) ;
  • Yoo, Kwang-Suk (Mineral Resources Research Division, Korea Institute of Geoscience and Mineral Resources Research Institute of Industrial Science & Technology) ;
  • Lee, Jae-Young ;
  • Kim, Hyung-Seok (Mineral Resources Research Division, Korea Institute of Geoscience and Mineral Resources Research Institute of Industrial Science & Technology)
  • 김기석 (한국지질자원연구원 광물자원연구본부) ;
  • 서주범 (한국지질자원연구원 광물자원연구본부) ;
  • 배인국 (한국지질자원연구원 광물자원연구본부) ;
  • 배광현 (한국지질자원연구원 광물자원연구본부) ;
  • 유광석 (한국지질자원연구원 광물자원연구본부) ;
  • 이재영 (포항산업과학기술연구원 POSNEP연구단) ;
  • 김형석 (한국지질자원연구원 광물자원연구본부)
  • Received : 2014.08.22
  • Accepted : 2014.11.19
  • Published : 2014.12.31

Abstract

Nickel oxide ores are composed of two kinds of minerals; one is saprolite that is processed by smelting to obtain nickel products, and the other is limonite that is used in hydrometallugical processes. It is not efficient economically to process the mixture of limonite and saprolite, so the processes to saparate the ore mixture should be developed. In the present study, the mixture was separated by dry-classification after liberationg using grindability difference between limonite and saprolite. Consequently, it is possible to obtain the limonite with less than 10% of Mg+Si contents, which could be treated by hydrometallurgical processes, when the limonite contain less than 30% of saprolite.

니켈 산화광인 라테라이트광은 크게 두 종류 광물로 구분되는데 이 중 사프로라이트는 건식제련용 원료로 그리고 리모나이트는 습식제련용 원료로 사용하여 니켈을 각각 회수하고 있다. 사프로라이트 및 리모나이트가 혼재하는 원료물질을 사용할 경우 건식 및 습식제련에서 경제적 손실이 발생할 수 있기 때문에 광물 간 분리 선별이 필요하다. 본 연구에서는 리모나이트와 사프로라이트의 분쇄성 차이를 이용하여 분쇄한 후 건식분급으로 두 광물을 선별하였다. 그 결과 리모나이트에 사프로라이트가 30%이하로 혼입되면 Mg+Si 성분의 함유량이 10%이하인 리모나이트질 라테라이트광을 얻을 수 있어 습식제련용 원료로 사용이 가능하다.

Keywords

References

  1. Kim Wantae, Kim Sangbea, 2009 : Current status of Laterite ore processing technology, The mineralogical society of Korea, Minerals and industry ISSN:1299-7496, Vol.22 No.2 pp.71-83.
  2. 2013 : Trend analysis of big 6 strategic minerals, Korea customs and trade development institute, vol.73. (http:\trass.kctdi.or.kr)
  3. Guilbert, J.M. and Park, Jr., C.F, 1986 : The geology of Ore Deposits. W.H. Freeman % Company, New York, 985p.
  4. Brindley, G.W. and Hang, P.T., 1973 : The nature of garnierites - I structure, chemical compositions and color characteristics. Clays Clay Minerals, 21, pp. 27-40. https://doi.org/10.1346/CCMN.1973.0210106
  5. Tauler, E, Proenza, J.A., Gali, S., Lewis, J.F., Labrador, M, Garcia-Romero, E., Suarez, M., Longo, F., and Bloise, D.G., 2009 : Ni-sepiolite-falcondoite in garnierite mineralization from the Falcondo Ni-laterite deposit, Dominican Republic. Clay Minerals, 44, pp. 435-454. https://doi.org/10.1180/claymin.2009.044.4.435
  6. Troly, G., Esterle, M., Pelletier, B., and Reibell, W., 1979 : Nickel deposits in New Caledonia, some factors influencing their formation. In:Evans, D.J.I etal. (eds.), International Laterite Symposium, New Orleans, Louisiana, 19-21 February, New York, Society of Mining Engineeres, pp. 85-119.
  7. Onodera, J., Inoue, T., and Imaizumi, T., 1987 : Attempts at the benefication of lateritic nickel ore, Int. J. Miner. Proc., 19, pp. 25-42. https://doi.org/10.1016/0301-7516(87)90030-5
  8. A.S.Ericson, J.Svensson and K.Ishii, 1987 : The MINPRO-PAMCO Nickel Segregation Process, International Journal of Mineral Processing, 19, pp. 223-236. https://doi.org/10.1016/0301-7516(87)90043-3
  9. Dae Weon Kim, Seong Tae Jang, Soon Ryung Choi, 2011 : A Study on the Recovery of Sn and Ni from the Steel Ball Scraps for Barrel Plating, Journal of the Korean Institute of Resources Recycling, v.20, no.4, pp. 46-51 https://doi.org/10.7844/kirr.2011.20.4.046