白金族金属リサイクル技術の開発動向:易溶化プロセスと物理濃縮プロセス

Yu Ki Taninouchi, Toru H. Okabe

研究成果: Contribution to journalArticle査読

抄録

Spent automobile catalysts are the most important secondary resource for platinum group metals (PGMs), and their recycling is essential not only to ensure a steady supply of PGMs but also to preserve the natural environment. However, several factors limit the efficiency of PGM recovery in current recycling processes. Specifically, PGMs represent a small proportion of the entire catalyst and are difficult to dissolve in aqueous solutions for subsequent separation. In recent decades, multiple technologies have been developed to make the recycling of PGMs more efficient and environment–friendly. Herein, we introduce the typical industrial processes for recovering PGMs from spent catalysts as well as established and emerging trends in the technological development of PGM recycling. Furthermore, we review novel recycling techniques for converting PGMs in spent catalysts into more soluble states and/or physically concentrating PGMs from spent catalysts.

寄稿の翻訳タイトルTrends of technological development of platinum group metal recycling: Solubilization and physical concentration processes
本文言語日本語
ページ(範囲)294-304
ページ数11
ジャーナルNippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
85
8
DOI
出版ステータス出版済み - 2021
外部発表はい

All Science Journal Classification (ASJC) codes

  • 凝縮系物理学
  • 材料力学
  • 金属および合金
  • 材料化学

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