发明名称 |
METHOD FOR SEPARATION-RECOVERING RARE-EARTH ELEMENTS AND DEVICES USING THE SAME |
摘要 |
PROBLEM TO BE SOLVED: To enhance purities of rare-earth elements to be separated and recovered.SOLUTION: A method for separating the rare-earth elements is provided with the following steps: a first step, in which a polymer having a carboxyl group and an organic substance having an amino group, are added to a solution containing dysprosium and the other kinds of the rare-earth elements to generate an aggregate having higher concentration of the dysprosium than the concentration of the other kind of the rare-earth elements; and a second step, in which a basic material is added to the filter-separated aggregate to generate the precipitation of dysprosium hydroxide and the solution containing the polymer having the carboxyl group and the organic substance having the amino group. |
申请公布号 |
JP2013194272(A) |
申请公布日期 |
2013.09.30 |
申请号 |
JP20120061374 |
申请日期 |
2012.03.19 |
申请人 |
HITACHI LTD |
发明人 |
YASUDA TOSHIO;SASAKI HIROSHI;MURAKAMI HAJIME;YAMAMOTO HIROTAKA;MIYATA MOTOYUKI;MATSUO TOSHIAKI |
分类号 |
C22B59/00;B01J39/04;B01J41/04;B01J49/00;C22B3/42;C22B3/44;C22B7/00 |
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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