- 专利标题: Method for recovering scandium
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申请号: US15546038申请日: 2015-12-08
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公开(公告)号: US10156002B2公开(公告)日: 2018-12-18
- 发明人: Ryoma Yamaguma , Tatsuya Higaki , Hidemasa Nagai , Satoshi Asano , Hiroshi Kobayashi
- 申请人: SUMITOMO METAL MINING CO., LTD.
- 申请人地址: JP Tokyo
- 专利权人: SUMITOMO METAL MINING CO., LTD.
- 当前专利权人: SUMITOMO METAL MINING CO., LTD.
- 当前专利权人地址: JP Tokyo
- 代理机构: Locke Lord LLP
- 优先权: JP2015-018427 20150202
- 国际申请: PCT/JP2015/084411 WO 20151208
- 国际公布: WO2016/125386 WO 20160811
- 主分类号: C22B3/00
- IPC分类号: C22B3/00 ; C22B3/42 ; C22B3/44 ; C22B59/00 ; C22B3/22
摘要:
Provided is a method for recovering scandium with which scandium can be efficiently recovered as high purity scandium oxide from a scandium-containing solution containing impurities such as iron without causing problems such as increased cost and safety problems. According to the method for recovering scandium according to the present invention, the pH of a solution containing scandium and iron (scandium-containing solution) is adjusted within the range of not less than −0.5 and less than 1, then scandium oxalate is obtained by adding the pH adjusted solution to an oxalic acid solution, and the scandium oxalate is roasted into scandium oxide.
公开/授权文献
- US20180023168A1 METHOD FOR RECOVERING SCANDIUM 公开/授权日:2018-01-25
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