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METHOD FOR RECOVERING RARE EARTH ELEMENT 发明申请

2023-06-24 2110 897K 0

专利信息

申请日期 2025-06-28 申请号 WOJP12078288
公开(公告)号 WO2013073376A1 公开(公告)日 2013-05-23
公开国别 WO 申请人省市代码 全国
申请人 SUMITOMO METAL MINING CO LTD; MAEBA Kazunari; KAWAKAMI Yukie; KUDO Keiji; TAKANO Masatoshi; ISHIDA Hitoshi; ASANO Satoshi; TANAKA Masahiro
简介 The purpose 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 yield without using an expensive chemical, solvent or the like. In the method of the present invention, a water-soluble salt other than sulfate ions is made to be coexistent with an aqueous solution that contains a rare earth element, and then an alkali metal sulfate salt is added to the aqueous solution, thereby producing a precipitate of a double sulfate of the rare earth element.


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