| 申请日期 | 2025-06-26 | 申请号 | WOEP14052183 |
| 公开（公告）号 | WO2014127993A1 | 公开（公告）日 | 2014-08-28 |
| 公开国别 | WO | 申请人省市代码 | 全国 |
| 申请人 | SIEMENS AG | ||
| 简介 | The invention relates to a method for the recovery of rare earth oxides and comprises the following steps : mixing a rare earth-containing phosphate with carbon and a slag-forming oxygen-containing compound of sodium, calcium, magnesium, potassium, lithium, aluminum, iron or boron, or a mixture thereof. The mixture of substances is then heat-treated at a temperature between 1100° C and 1800° C and a rare earth oxide is produced. | ||
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