Transport of metal salts by zwitterionic ligands; simple but highly efficient salicylaldoxime extractants.
نویسندگان
چکیده
Attaching dialkylaminomethyl arms to commercial phenolic oxime copper extractants yields reagents which transport base metal salts very efficiently by forming neutral 1:1 or 1:2 complexes with zwitterionic forms of the ligands.
منابع مشابه
Cation and anion selectivity of zwitterionic salicylaldoxime metal salt extractants.
3-Dialkylaminomethyl substituted salicylaldoximes are efficient metal salt extractants, and, in contrast to related "salen"-based reagents, are sufficiently stable to acid hydrolysis to allow commercial application in base metal recovery. Crystal structures show that metal salts are bound by a zwitterionic form of the reagents, with copper(II) nitrate, tetrafluoroborate and trifluoroacetate for...
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عنوان ژورنال:
- Chemical communications
دوره 34 شماره
صفحات -
تاریخ انتشار 2008