2013 Fiscal Year Final Research Report
Selective recovery of precious metals from solution using magnetite
| Project/Area Number |
23360398
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (B)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
Earth system and resources enginnering
|
|---|
| Research Institution | Hokkaido University |
|---|
Principal Investigator |
HIROYOSHI Naoki 北海道大学, 工学(系)研究科(研究院), 教授 (50250486)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
ITO Mayumi 北海道大学, 大学院・工学研究院, 准教授 (10339690)
FUKUSHIMA Masami 北海道大学, 大学院・工学研究院, 准教授 (40344113)
|
|---|
| Project Period (FY) |
2011-04-01 – 2014-03-31
|
| Keywords | 貴金属 / 金 / 白金 / パラジウム / ロジウム / 磁力選別 / 還元析出 / 回収 |
|---|
| Research Abstract |
A new method to recover precious metals like gold and platinum group metals selectively from the solutions containing common metal ions. Reduction potential of the precious metal ions are high and they are reduced and precipitated on magnetite surface, but reduction potential of common metals like copper and zinc are lower than that of magnetite and they are not reduced on magnetite surface. Magnetic separation can be used to recover precious metal loaded magnetite from the suspension of precious metal ores and scraps. It was confirmed that slag magnetite (a magnetic portion of crushed copper converter slag) can be used to recover precious metals.
|
