• Title/Summary/Keyword: Recycling of resources

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Investigation on the Material Flow of Cobalt for Resource Recovery and Recycling of Strategic-Metal Scrap (戰略金屬 스크랩 資源化를 위한 코발트 物質흐름 現況調査)

  • Sohn, Jeong-Soo;Yang, Dong-Hyo;Shin, Shun-Myung;Kang, Eun-Hee
    • Resources Recycling
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    • v.14 no.2
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    • pp.43-55
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    • 2005
  • As world population increases and the world economy expalds, so does the demand for natural resources especially strategic metals such as cobalt. An accurate assesment of the nation's minerals must include not only the resources available in the ground but also those that become available through recycling. In this paper, data on domestic and international supply of cobalt and its applications by end-user were analyzed for stable security of cobalt resources and effective recycling of cobalt scraps. Also, an initial evaluation of the flow of cobalt-containing materials in the United States was prepared. In 2003, 8,000 metric tons of cobalt were consumed in the United States and an estimated 28% of U.S. cobalt supply was derived from scrap. The superalloy industry and catalyst industries have well-established recycling or cobalt recovery practices. Recycling rates of cobalt scraps from magnet alloy and cemented carbide were relatively low.

Automotive Recycling System and Recycling Business of Dismantler in Japan (일본(日本)의 자동차 리싸이클링시스템과 해체업계(解體業界) 경영동향(經營動向_)

  • Oh, Jae-Hyun;Kim, Joon-So;Moon, Suk-Min;Min, Ji-Won
    • Resources Recycling
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    • v.20 no.1
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    • pp.14-27
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    • 2011
  • In order to review the End-of Life Vehicle(ELV) recycling system and recycling business of dismantlers in Japan, scheme of the automobile recycling law, status of ELV recycling, exports of used cars, ELV marketing business of dismantler and upgrading of used parts net work were studied. On the other hand, field survey in details for dismantling works were conducted at West-Japan Auto Recycling Co.. Although the ELV recycling system has been operating smoothly without any noticeable trouble, recycling business is running under severe circumstance. Exports of used cars have been increasing day by day through worldwide 176 countries. Finally, reuse parts of ELV concerning innovation marketing was discussed.

Trend on the Recycling Technologies for Spent Batteries by the Patent and Paper Analysis (특허(特許)와 논문(論文)으로 본 폐전지 재활용(再活用) 기술(技術) 동향(動向))

  • Shin, Shun-Myung;Joo, Sung-Ho;Kim, Soo-Kyung;Cho, Young-Ju;Cho, Bong-Gyoo
    • Resources Recycling
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    • v.21 no.4
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    • pp.16-25
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    • 2012
  • There are several kinds of batteries such as zinc-air battery, lithium battery, Manganese dry battery, silver oxide battery, sodium-sulphur battery, lead acid battery, metal hydride secondary battery, nickel-cadmium battery, lithium ion battery, alkaline battery, etc. These days it has been widely studied for the recycling technologies of the used battery from view points of economy and efficiency. In this paper, patents and published papers on the recycling technologies of the used battery were analyzed. The range of search was limited in the open patents of USA (US), European Union (EU), Japan (JP), Korea (KR) and SCI journal articles from 1972 to 2011. Patents and journal articles were collected using key-words searching and filtered by filtering criteria. The trends of the patents and journal articles were analyzed by the years, countries, companies, and technologies.

The Main Contents of the Countermeasures for Recycling of Used Metal Resources (환경부(環境部) "폐금속자원(廢金屬資源) 재활용(再活用) 대책(對策)"의 주요(主要) 내용(內容))

  • Kim, Soo-Kyung
    • Resources Recycling
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    • v.19 no.4
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    • pp.3-12
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    • 2010
  • Countries which have a lot of metal resources are weaponizing metal resources such as supply limitation, high price sale. It's necessary for us to establish the countermeasure for recycling of used metal resources on a government basis. Ministry of Environment has established and announced the project for finding and reuse the hidden metal resources as pan-government department pass the Cabinet meeting at September 22, 2009. This countermeasure, 10 years project, is classified into 2 steps. Aim of this project is advance of the recycling technology and industry, achievement of recycling rate, 75%, improvement in adverse balance of trade, 1.25 billion US$.