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http://dx.doi.org/10.7844/kirr.2011.20.3.012

Recycling Industry of Urban Mines by Applying Non-Ferrous Metallurgical Processes in Japan  

Oh, Jae-Hyun (Yonsei University)
Kim, Joon-Soo (Korea Institute of Geoscience and Mineral Resources)
Moon, Suk-Min (ACN)
Min, Ji-Won (The Korean Institute of Resources Recycling)
Publication Information
Resources Recycling / v.20, no.3, 2011 , pp. 12-27 More about this Journal
Abstract
DOWA group has been working on metal recycling applying the smelting and refining process of KOSAKA Smelter. DOWA has developed it's metal recycling technologies through the treatment of black ore(complex sulfide ores) that contain many kinds of non-ferrous metals. In addition to these special technologies, DOWA has strengthened its hydrometallurgical process of precious metals and ability to deal with low-grade materials such as used electrical appliances or vehicles. On the other hand, JX Nippon Mining & Metals Corporation(JX-NMMC) carries out its metal recycling and industrial waste treatment businesses employing advanced separation, extraction and refining technologies developed through its extensive experience in the smelting of non-ferrous metals. JX-NMMC collects approximately 100,000t/y of copper and precious metal scraps from waste sources such as electronic parts, mobile phones, catalytic converters, print circuit boards and gold plated parts. These items are recycled through the smelting and refining operations of Saganoseki smelter and Hitachi Metal-recycling complex(HMC). In this like, metal recycling industries combined with environmental business service in Japan have been developed through excellent technologies for mineral processing and non-ferrous smelting. Also, both group, Dowa and JX-NMMC, were contributed to establish Japan's recycling-oriented society as the typical leading company of non-ferrous smelting. Now. it is an important issue to set up the collection system for e-waste.
Keywords
non-ferrous smelting; metal recycling; environmental business; DOWA Group; JX-NMMC Group;
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