| 申请日期 | 2025-06-26 | 申请号 | RU2016149161 |
| 公开（公告）号 | RU2016149161A | 公开（公告）日 | 2018-06-19 |
| 公开国别 | RU | 申请人省市代码 | 全国 |
| 申请人 | VALE S A | ||
| 简介 | The application relates to a process for rare earth extraction and thorium removal from monazite or bastnasite bearing ores or ore beneficiation and industrial waste containing a variable amount of rare earth elements as oxides, phosphates, carbonates or sulfates, comprising (i) controlled mixture between sulfuric acid and the material containing rare earth and (ii) water leaching under controlled conditions. | ||
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