发明名称 Method for separating metals such as zirconium and hafnium.
摘要 A method for separating a metal (a) from a metal (2), preferably zirconium from hafnium, which consists in dissolving said metals in an aqueous solution wherein said metals are in a state preventing them from passing through a nanofiltration membrane; treating the aqueous medium with a ligand, for example EDTA, which is complexed with metal (1) and/or metal (2), then in passing the resulting treated medium on a filtering membrane allowing through the ligand-metal complexes, but retaining the metals not complexed with the ligand.
申请公布号 ZA200301974(B) 申请公布日期 2004.03.11
申请号 ZA20030001974 申请日期 2003.03.11
申请人 COMPAGNIE EUROPEENNE DU ZIRCONIUM-CEZUS 发明人 NOEL OZANNE;MARC LIONEL LEMAIRE;ALAIN JEAN-LOUIS GUY;JACQUES HENRI FOOS;STEPHANE PELLET-ROSTAING;FREDERIC CHITRY
分类号 B01D61/14;C01G25/00;C01G27/00;C22B3/16;C22B3/22;C22B3/44;C22B7/00;C22B9/02;C22B34/14 主分类号 B01D61/14
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