| 申请日期 | 2025-09-08 | 申请号 | JP2015539090 |
| 公开（公告）号 | JP6439696B2 | 公开（公告）日 | 2018-12-19 |
| 公开国别 | JP | 申请人省市代码 | 全国 |
| 申请人 | 日立金属株式会社 | ||
| 简介 | A production method of rare earth oxysulfide comprising a step of mixing a rare earth compound with sulfuric acid and/or sulfate in such a proportion that sulfate ions are 0.75-1.75 mol to 1 mol of a rare earth element, thereby preparing a reaction solution to obtain a product; a step of calcining the product to obtain calcined powder; and a step of reducing the calcined powder to obtain rare earth oxysulfide. | ||
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