发明名称 |
METHOD FOR SEPARATING ZIRCONIUM AND HAFNIUM TETRACHLORIDE WITH THE AID OF A MELTED SOLVENT |
摘要 |
A method of separating zirconium and hafnium tetrachlorides using a solvent comprising firstly an alkaline metallic solvent comprising a salt made up of an alkali metal chloride and an acidic metal chloride A, for example a chloroaluminate or an alkaline chloroferrate, and secondly an acidic metal or metalloid chloride B of acidity that is less than that of the acidic metal chloride A. The acidic metal or metalloid chloride B may be selected from chlorides of Mg, Zn, and Cu. The method may be a continuous separation method by selective absorption of the tetrachloride vapors by the solvent in the substantially or totally molten state. |
申请公布号 |
EP1379704(A1) |
申请公布日期 |
2004.01.14 |
申请号 |
EP20020761935 |
申请日期 |
2002.04.12 |
申请人 |
COMPAGNIE EUROPEENNE DU ZIRCONIUM CEZUS |
发明人 |
DELONS, LAURENCE;PICARD, GERARD;TIGREAT, DELPHINE |
分类号 |
B01D3/14;B01D3/40;B01D5/00;C01G25/04;C01G27/00;C01G27/04;C22B34/14;(IPC1-7):C22B34/14 |
主分类号 |
B01D3/14 |
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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