09:45 〜 10:25
[3501-04-02] Novel approaches for the establishment of sustainable and eco-friendly recovery schemes for precious metals in hydrometallurgy
司会者:沖部 奈緒子(九州大学)
キーワード:Gold, Thiosulfate, Galvanic interaction
In hydrometallurgy, cyanide or halides are the conventional solvents to extract precious metals, but as the importance of the environment is emphasized, eco-friendly solvents have been in the spotlight. Among the alternative solvents, thiosulfate is one of the most attractive and promising solvents due to its non-toxicity, low corrosiveness, and high selectivity for precious metals, but its application on an industrial scale application is still severely limited because of one big drawback, which is; there is no acceptable recovery technique to recover gold-thiosulfate complex from the leachate to date. This study addresses several novel approaches for recovering gold ions from thiosulfate solutions by galvanic interactions of electron donors and/or mediators (e.g., zero-valent aluminum, activated carbon, pyrite, magnetite, and hematite).
講演PDFファイルダウンロードパスワード認証
講演集に収録された講演PDFファイルのダウンロードにはパスワードが必要です。
現在有効なパスワードは、[資源・素材学会会員専用パスワード]です。
※[資源・素材学会会員専用パスワード]は【会員マイページ】にてご確認ください。(毎年1月に変更いたします。)
[資源・素材学会会員専用パスワード]を入力してください