• Title/Summary/Keyword: 금속리싸이클링

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Recycling of Non-Ferrous Metals (비철금속 리싸이클링 동향)

  • Oh Jae-Hyun;Kim Mi-Sung;Shin Hee-Duck
    • Resources Recycling
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    • v.12 no.4
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    • pp.3-19
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    • 2003
  • Prior to discuss on recycling status and future prospects for the non-ferrous metals in the Korea, Japan and U.S.A. respectively, worldwide resources of non-ferrous metals and characteristics with recycling of non-ferrous metals are reviewed. In case of recovery non-ferrous metals, recycling of automobile shredder dust and E.A.F. dust are illustrated. Finally, the problems and technological developments associated with recycling of non-ferrous metals are summarized.

Current Status of Magnesium Smelting and Recycling Technology (마그네슘의 제련 및 리사이클링 기술 현황)

  • Sohn, Ho-Sang
    • Resources Recycling
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    • v.29 no.5
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    • pp.3-14
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    • 2020
  • Magnesium is the third most abundant structural metal after aluminum and iron. Magnesium is the lightest metal in the common metals. It has a density 33 % less than aluminum and 77% lower than steel. However, the primary magnesium production process is highly energy intensive. The recycling of magnesium scrap reduces the energy consumption and environmental burden, comparing to the primary metal production. However, the amount of recovered metal from scrap is limited because of the difficulties to remove the impurities in the scrap. This work provides an overview of the magnesium production and recycling process.

Microstructure Control, Forming Technologies of Mg Alloys and Mg Scrap Recycling (마그네슘합금의 조직제어(組織制御)와 성형가공(成形加工) 및 스크랩 리싸이클링 기술(技術))

  • Shim, Jae-Dong;Lee, Dong-Hui
    • Resources Recycling
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    • v.20 no.1
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    • pp.69-79
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    • 2011
  • Recently, magnesium alloys are in the spotlight as a promising materials in the fields of automobile parts and electronic appliances due to their merits representing light weight, high specific strength, damping property, shielding of electromagnetic wave and so on. However, magnesium alloys show a poor formability at room temperature because magnesium has HCP crystal structure with limited slip planes and strong basal texture is formed during plastic deformation process such as rolling and extrusion. Therefore, many R&D efforts have been paid for improvement of formability through grain refinement, texture control and various forming technologies. This paper is giving an overview about recent achievements on control of microstructures, forming technologies and magnesium scrap recycling.

Recycling of End-of-Life Photovoltaic Silicon Modules (사용 후 태양광 실리콘 모듈의 리싸이클링)

  • Kim, Joon Soo;Cho, Jae Young;Lee, Jae Kyung;Park, Areum;Park, Jin Hyuk;Yun, Hyun Mok;Jun, Yun-Su
    • Resources Recycling
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    • v.28 no.5
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    • pp.19-29
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    • 2019
  • Recently, it is increasing a amount of installized solar-cell rapidly, and waste Solar cell module are generated in according to the reduction of efficiency largely. Therefore, it is concerned at the environmental problems and recycling of valuable materials, greatly. The treatment processes of end-of-life photovoltaic modules are composed the disassembly of Aluminum frames, separation of Tempered glass, removal of Ethylene Vinyl Acetate and recovery of valuable Metals. For the efficient recycling, we are considered to the treatment technology seriously. And we are proposed on the general opinions according to the developing technology, EPR (Extended Producer Responsibility) problems and promotion plans for the activation of recycling industry.

Current Status on the Domestic Recycling of Magnesium (국내(國內) 마그네슘 리싸이클링 현황(現況))

  • Park, Hyung-Kyu;Kang, Min-Cheol
    • Resources Recycling
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    • v.20 no.3
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    • pp.3-11
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    • 2011
  • Magnesium has been used as parts of vehicles, case materials of notebook PC and mobile phone, and its demand has been increasing recently. So until now, there has little magnesium scraps from the end of life vehicles or electronic parts, and most scraps has been generated from magnesium processing lines such as melting, die casting and machining. It is to review the present status of magnesium recycling. Here, domestic demand of magnesium, recycling amount and technologies used in domestic recycling companies were surveyed in recent years. In 2010, 8,840 tons of magnesium scraps were processed and used as raw materials for die casting products. The recycling ratio was estimated as 32.5%.

Economical Review of the E-waste Recycling (E-waste recycling의 경제성(經濟性) 고찰(考察))

  • Oh, Jae-Hyun;Kang, Nam-Kee
    • Resources Recycling
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    • v.22 no.4
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    • pp.12-21
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    • 2013
  • Waste electrical and electronic equipment(WEEE or E-waste) is one of the fastest growing waste stream in Korea. The proper management of such equipment has become of major concern for solid waste professionals because of the large growth of the waste stream and the presence of a myriad of toxic materials in it. In this paper, in order to evaluate the economical value of the recycling metallic materials from the E-waste, big size electrical home appliances, small size electrical home appliances, end of life hand phone and PCB(printed circuit board) were reviewed.