Status of Metal Recovery Technologies for Manganese Nodules

Hunsaeng  Chung

doi:10.12972/ksmer.2016.53.6.627

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2016 Vol.53, Issue 6 Preview Page

General Remarks

Status of Metal Recovery Technologies for Manganese Nodules 망간단괴로부터 금속의 회수기술 동향

31 December 2016. pp. 627-634

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Abstract

The metallurgical processing to recover valuable metals from deep-sea manganese nodules has been developed in the past four decades. In the early days of the development, the recovery of three metals such as Cu, Ni, and Co was favored, but later four metals process including Mn was recognized more advantageous due to the economic and environmental concerns. Recently, research extends to the recovery of metals such as Mo, V, Zr and rare earth from nodules. In Korea, the smelting-sulfuric acid leach process is considered to be the most promising technology, and a continuous system with 200 kg/day capacity was successfully tested.

Keywords

Manganese nodule

Metallurgical processing

Leaching

Smelting

Metal recovery

심해저 망간단괴로부터 유용금속을 회수하기 위하여 개발하여 온 제련기술들에 대하여 조사하고 기술 발전 동향을 파악하고자 하였다. 제련기술은 구리, 니켈, 코발트의 3가지 금속을 회수하는 공정과 상기한 3가지 금속 외에 망간을 추가한 4가지 금속을 회수하는 공정으로 크게 분류되는데, 개발 초기에는 3가지 금속의 회수가 선호되었으나, 근래에는 경제적․환경적인 이유로 4가지 금속의 회수가 대세가 되고 있다. 또한 금속의 분리기술이 발전하고, 수요가 급증함에 따라 최근에는 4가지 금속 외에도 망간단괴가 함유하고 있는 몰리브덴, 바나듐, 지르코늄과 같은 중요 금속과 이트륨, 탈륨과 같은 희토류 금속들의 회수에 주목하기 시작하였다. 우리나라는 용융-황산침출 공정을 상용화에 유리한 기술로 판단하고, 200 kg/day 규모의 연속 통합시스템을 활용하여 실증실험을 수행하였고, 상용화 플랜트 설계를 위한 기반을 구축하고 있다.

키워드

망간단괴

제련

침출

용융

금속회수

References

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Information

Publisher :The Korean Society of Mineral and Energy Resources Engineers
Publisher(Ko) :한국자원공학회
Journal Title :Journal of the Korean Society of Mineral and Energy Resources Engineers
Journal Title(Ko) :한국자원공학회지
Volume : 53
No :6
Pages :627-634
Received Date : 2016-09-07
Revised Date : 2016-11-17
Accepted Date : 2016-12-22
DOI :https://doi.org/10.12972/ksmer.2016.53.6.627

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

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