Rapid Oxidative Dissolution of Metallic Tin in Alkaline Solution Containing Iodate Ions

Yu ki Taninouchi, Tetsuya Uda

研究成果: Contribution to journalArticle査読

抄録

Abstract: Efficient and environmentally friendly tin leaching methods are of significant interest for the separation and recovery of tin from various materials such as tin-plated scraps and waste printed circuit boards. In this study, we investigated the oxidative dissolution of metallic tin in an alkaline solution. A pure tin specimen was leached at 30 °C using different oxidizing agents in a 1 M sodium hydroxide solution. The results demonstrated that iodate ion (IO3) is one of the most effective oxidizing agents for dissolving tin in alkaline media. A fundamental mechanism for tin dissolution into the leaching solution containing IO3 is proposed based on electrochemical measurements. In addition to the rapid dissolution of tin without much heating, the benefits of using IO3 as an oxidizing agent include its electrochemical regenerability. Thus, alkaline leaching using IO3 as an oxidizing agent is a potentially efficient technique for separating and recovering tin. Graphical Abstract: [Figure not available: see fulltext.]

本文言語英語
ページ(範囲)1762-1771
ページ数10
ジャーナルJournal of Sustainable Metallurgy
7
4
DOI
出版ステータス出版済み - 12 2021

All Science Journal Classification (ASJC) codes

  • 環境科学(その他)
  • 材料力学
  • 金属および合金

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