Ocean and Polar Research

Korea Institute of Ocean Science & Technology (한국해양과학기술원)
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Development of Technical and Economic Evaluation Model for Seafloor Massive Sulfide Deposits

해저열수광상 기술.경제성평가 모델 개발

  • 박세헌 (한국해양연구원 해양과학기술정책연구센터) ;
  • 박성욱 (한국해양연구원 해양과학기술정책연구센터) ;
  • 권석재 (한국해양연구원 해양과학기술정책연구센터)
  • Published : 2006.06.30
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Abstract

The Kuroko-type seafloor massive sulfide deposits found in the western Pacific have been considered to have potentials for economic recovery of Au, Ag, Cu, Zn, and Pb. In this study, a preliminary model was developed for the technical and economic evaluation of them. The FRSC site on Lau Basin in the Tonga EEZ was selected as a target. In this study, no construction In for the metallurgical processing subsystem was accounted for. Instead, it was assumed to sell the Cu, Zn, and Pb concentrates to the existing sulfide customer smelter. The low total investment costs for the development make the venture very attractive. However, the result of the economic feasibility evaluation is still less attractive with the mean metal yield of the Kuroko on land. It is considered that commercial mining may be plausible if the richer metal yields are applied to the development. Quantitative information for metal yield is necessary for a more accurate evaluation. However, the important resource potential information regarding the amount of ore body, the inside structure, and the metal yields have not yet been clarified sufficiently. h addition, the flotation of ore body using seawater has not been tested yet. It is necessary to solve these problems through the experimental R&D and a survey.

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References

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