申请日期 | 2025-07-12 | 申请号 | US16084379 |
公开(公告)号 | US11208561B2 | 公开(公告)日 | 2021-12-28 |
公开国别 | US | 申请人省市代码 | 全国 |
申请人 | Baotou Rare Earth Research and Development Center Chinese Academy of Sciences | ||
简介 | The present invention discloses a rare-earth sulfide colorant and a preparation method thereof. The chemical formula of the rare-earth sulfide colorant of the present invention is RE2-2xS3-3x.2y [REPO4], wherein RE is selected from one or more of La, Ce, Pr, Nd and Sm, and the ratio of y to x is 0.001 to 0.65. The present invention also discloses use of a phosphorus-containing compound for increasing the vividness of a rare-earth sulfide colorant. |
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