白金族 金屬의 分離 및 回收技術의 現況 = Technical Review on Separation and Recovery of Platinum Group Metals

다국어 초록 (Multilingual 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.

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