A practical usage of urban mine and its system formation are one of the most challenging and important issue to be progressed. According to the sustainable resource management, further progress for the special minor metals recovery may become the key issue. On the other hand, there is no regulation and legislation for collecting small-sized E-scrap such as cell phones, mobile audio players, digital cameras, and etc in Japan. The contain ratio of special minor metals in small-size E-scraps can be much higher than that in home appliances and ELVs. To help to figure the operability of special minor metals recovery from small-size E-scraps, we will introduce the estimation on how much less-common-metals are accumulated in a society through all E-scrap from home appliances, ELVs and small domestic appliances in Japan. Then we will introduce experimental trials of collecting small-size E-scrap operated in some parts of Japan and how to recover minor rare metals from them. Figure 1 shows Flow of Recovering rare metals from small sized WEEE. Before smelting treatment of SDA, detachment treatment should be done to recover minor rare metals. Also technologies will be shown in this presentation.

E-scrap recycling system and technologies in Japan

247th National Meeting (2014)

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