申请日期 | 2025-07-18 | 申请号 | WORU13000990 |
公开(公告)号 | WO2014137238A1 | 公开(公告)日 | 2014-09-12 |
公开国别 | WO | 申请人省市代码 | 全国 |
申请人 | OPENED JOINT STOCK COMPANY "UNITED CHEMICAL COMPANY URALCHEM" | ||
简介 | The present invention relates to a method for recovery of rare earth metals (REM) from diluted aqueous acidic solutions comprising steps of liquid-phase extraction of REM into an organic phase and re-extraction of REM from the organic phase, wherein the re-extraction is carried out by precipitation of REM as a solid phase in the form of a poorly soluble salt of a strong acid (pKa<0). Recovery of REM into the concentrate is up to 99% in the course of one stage of the re-extraction. |
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