Contributions of Non-ferrous Smelters to Metal Resource Circulation in Japan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

As contributions of non-ferrous smelters to metal resource circulation, ores and secondary raw materials, such as scrap and waste, are treated to recover base metals such as copper, lead, and zinc, as well as other precious and minor metals. One crucial factor that makes this metal recovery possible is the creation of an organic link among copper, lead, and zinc smelters. In recent years, the specialization of non-ferrous smelting companies has been promoted in Japan, and it has become difficult to maintain this close organic link. In addition, in the field of metal resource circulation, the importance of lead smelters should be recognized again. For example, lead smelting acts as an essential destination for copper smelting by-products, such as smelting dusts. Additionally, printed circuit boards that have been treated in large quantities in copper smelters contain metal impurities, such as lead and tin in solder and antimony in flame-retardant auxiliaries. When printed circuit boards are treated in copper smelters, these excess impurities may interfere with the copper smelting process and accumulate in by-products. These impurity metals can be recovered effectively in lead smelters.

Original languageEnglish
Title of host publicationPbZn 2020
Subtitle of host publication9th International Symposium on Lead and Zinc Processing
EditorsA. Siegmund, S. Alam, J. Grogan, U. Kerney, E. Shibata
PublisherSpringer
Pages285-290
Number of pages6
ISBN (Print)9783030370695
DOIs
Publication statusPublished - 2020 Jan 1
Event9th International Symposium on Lead and Zinc Processing, PbZn 2020, held in conjunction with the 149th Annual Meeting and Exhibition, TMS 2020 - San Diego, United States
Duration: 2020 Feb 232020 Feb 27

Publication series

NameMinerals, Metals and Materials Series
ISSN (Print)2367-1181
ISSN (Electronic)2367-1696

Conference

Conference9th International Symposium on Lead and Zinc Processing, PbZn 2020, held in conjunction with the 149th Annual Meeting and Exhibition, TMS 2020
CountryUnited States
CitySan Diego
Period20/2/2320/2/27

Keywords

  • E-scrap
  • Non-ferrous smelter
  • Recycling
  • Resource circulation
  • Secondary raw materials
  • Waste treatment

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Energy Engineering and Power Technology
  • Mechanics of Materials
  • Metals and Alloys
  • Materials Chemistry

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