Journal of the Korean Society of Mineral and Energy Resources Engineers (한국자원공학회지)

The Korean Society of Mineral and Energy Resources Engineers (한국자원공학회)
권호 표지

Technical Review on Separation and Recovery of Platinum Group Metals

백금족(白金族) 금속(金屬)의 분리(分離) 및 회수기술(回收技術)의 현황(現況)

Kim, Min-Seuk;Yoo, Kyoung-Keun;Kim, Byung-Su;Yoo, Jae-Min;Jeong, Jin-Ki;Lee, Jae-Chun
김민석;유경근;김병수;유재민;정진기;이재천

  • Published : 2007.08.31
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Abstract

The demand for platinum group metals (PGMs) as raw materials for various advanced industries has been growing due to their excellent physical and chemical properties. Since the mineral resources are confined to few countries, the secure supply of PGMs becomes an issue to related industries. Recently, domestic companies has been endeavored to recover PGMs from various secondary resources. Unfortunately, most of them suffer from the lack of refining technology. Unlike the mineral resources, the conventional refining technology is difficult to apply directly to secondary resources since they contain wide spectrum of metals, contents and form of the existence. In this paper, the refining process for PGMs currently in operation in a commercial factory is introduced. The solution chemistry, which is the basis of separation & purification, is described in terms of chloro-complex widely used in real processes. In addition, the minerals of PGMs, production, and application in various industries are also discussed briefly. The investigation and review of the technology trend would help to set up the R&D strategy to realize the recycling of PGMs from domestic secondary resources.

백금족 금속은 물리화학적 특성이 뛰어나기 때문에 첨단산업의 원료소재로 그 수요가 계속적으로 증가하고 있다. 광물자원이 몇몇 국가들에 제한적으로 부존되어 있을 뿐만 아니라 희소성이 큰 백금족 금속의 안정적 확보가 산업적으로 매우 중요하다. 최근 들어 국내업체에서도 2차 자원으로부터 백금족 금속을 회수하기 위하여 많은 노력을 기울이고 있으나, 제련기술의 낙후로 인하여 많은 어려움을 겪고 있는 실정이다. 특히 광물자원과는 달리 2차 자원의 경우 함유되어 있는 백금족 금속의 종류 및 함량, 존재형태가 다양해짐에 따라 종래의 제련기술을 그대로 적용하기에는 어려움이 많다. 본고에서는 현재 상용적으로 가동되고 있는 백금족 금속의 제련공정을 소개하고자 하였다. 분리정제의 기반이 되는 용액화학은 실제공정에서 접하게 되는 염소착물을 중심으로 기술하였다. 아울러 백금족 금속의 광물자원, 생산, 산업분야별 용도 등에 대해서도 간략하게 언급하였다. 이러한 기술현황의 조사 및 고찰은 국내에서 발생하는 2차 자원으로부터 백금족 금속의 리사이클링을 실현하기 위한 연구개발 전략의 수립에 유용한 기술정보를 제공하게 될 것이다.서 언

Keywords

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