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Synthetic of Eff icient Extractant LIX841 and Application Research W an g X i ny u , Yan S huy i ( Chen g d u U ni versi t y of Technolog y , Cheng d u 610059) Abstract :L IX841 ,as an efficient ext ractant for Cu2 + , is 22hydroxy252nonylaceo p henone oxime. The inter2 mediate P2pionyip nenyi acetate ,synt hesized by nonyl2p henol mixed wit h a2cetic anhydride ,at 80 ℃,lasted1. 5h , reaaranged in