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METHOD FOR RECOVERING RARE EARTH ELEMENT 发明授权

2023-11-27 2590 156K 0

专利信息

申请日期 2025-06-26 申请号 EP12850545
公开(公告)号 EP2781609B1 公开(公告)日 2018-10-03
公开国别 EP 申请人省市代码 全国
申请人 Sumitomo Metal Mining Co Ltd
简介 The object of the present invention is to provide a method for recovering a rare earth element, which is capable of efficiently recovering a rare earth element with high recovery rate without using any expensive chemicals, solvents or the like. In the present invention, a water-soluble salt other than sulfate ions is allowed to coexist with an aqueous solution that contains a rare earth element, and then an alkali metal sulfate is added to the aqueous solution, thereby producing a precipitate of a double sulfate of the rare earth element.


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