发明名称 |
METHOD FOR RECOVERING RARE EARTH |
摘要 |
PROBLEM TO BE SOLVED: To efficiently and easily recover rare earths from a phosphoric acid plaster obtained as residue (waste) or the like after the recovery of phosphorous from phosphorous ore in the production of phosphoric acid.SOLUTION: In the method for recovering rare earths from a phosphoric acid plaster comprises: a leaching step of leaching rare earths from the phosphoric acid plaster into a leach liquor as a water solution including a chelate agent by a hydrothermal leaching method using the leachate to obtain a leach noble liquor including the rare earths; and a rare earth recovering step of separately recovering the rare earths from the leach noble liquor. |
申请公布号 |
JP2014009395(A) |
申请公布日期 |
2014.01.20 |
申请号 |
JP20120148530 |
申请日期 |
2012.07.02 |
申请人 |
OSAKA PREFECTURE UNIV;ONODA CHEMICAL INDUSTRY CO LTD |
发明人 |
KONISHI YASUHIRO;SAITO NORIZO;TODA MASAYA;OKUMURA TOSHIHIKO |
分类号 |
C22B59/00;B09B3/00;C22B3/04;C22B3/44 |
主分类号 |
C22B59/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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