S. V. Smirnova, V. E. Baulin, I. I. Torocheshnikona, I. V. Pletnev
of cadmium, lead, cobalt, copper and zinc from aqueous solutions into
hydrophobic-hydrophilic ionic liquids
Extraction of cadmium(II), lead(II), cobalt(II), copper(II) and
zinc(II) into ionic liquids tetraoctylammonium N-lauroyl sarcosinate (TOALS)
and trioctylmethylammonium salicylate (TOMAS) was studied. Cadmium(II),
lead(II), copper(II) in TOALS and copper(II) in TOMAS are extracted
quantitatively from neutral and slightly alkaline solutions in the absence of additional
reagents. Effect of the composition of aqueous and organic phases, the contact
time on the extraction of metals was investigated.
Key words: ionic
liquids, solvent extraction of metal.
Copyright (C) Chemistry Dept., Moscow State University, 2002