Phase separation of alkaline metal-rare metal condensed materials from multi-component glass

2017 Fiscal Year Final Research Report

• Project/Area Number: 26740041
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Environmental conscious materials and recycle
• Research Institution: University of Fukui
• Principal Investigator: Okada Takashi 福井大学, 学術研究院工学系部門, 講師 (30641625)
• Co-Investigator(Renkei-kenkyūsha): YONEZAWA SUSUMU 福井大学, 産学官連携本部, 教授 (80242585)
• Project Period (FY): 2014-04-01 – 2018-03-31
• Keywords: リサイクル化学

Outline of Final Research Achievements

Reduction-melting can separate heavy metals and precious metals from slag phase, and this process is useful for metal recovery from end-of-life products. However, less noble metals such as rare earth element and transition metals cannot be separated from the slag phase. For separation of these less noble metals, we focused on enrichment of alkaline metal compounds during the reduction-melting. If the less noble metals transfer to the condensed materials of alkaline metals, they are separated from the slag phase. In this study, multi-component heavy metal silicate glass was heat treated under a reductive atmosphere to mechanistically investigate the behavior of alkaline metal enrichment.

Free Research Field

環境学