A new sorbent for selective separation of metal: Polyethylenimine methylenephosphonic acid

被引：20

作者：

Abderrahim, Omar

Didi, Mohamed Amine

Moreau, Bernard

Villemin, Didier ^{[1
]}

机构：

[1] Univ Caen, ENSICAEN, LCMT, CNRS,UMR 6507, F-14050 Caen, France

[2] Tlemcen Univ, Dept Chem, Catalysis Lab, Tilimsen, Algeria

来源：

SOLVENT EXTRACTION AND ION EXCHANGE | 2006年 / 24卷 / 06期

关键词：

phosphonic sorbent; heavy metal ions; liquid-solid extraction; selectivity; polyethyleniminemethylenephosphonic acid;

D O I：

10.1080/07366290600952519

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A new sorbent, the polyethylenimine methylenephosphonic acid ( PEIMPA), was synthesized from commercially available polyethylenimine. After characterization by (H-1, C-13, P-31) NMR, elementary analysis, UV/VIS and FTIR, the new ion exchange polymer PEIMPA has been investigated in liquid - solid extraction of a mixture of Cd(II), Co(II), Cu(II), Fe(III), Ni(II), Pb(II), and Zn(II) cations from a mineral residue of zinc ore dissolved in nitric acid. The selectivity of this polymer was studied as a function of pH. PEIMPA can sorb much higher amounts of Fe ion than Cd, Co, Cu, Ni, Pb, and Zn ions. The recovery of Fe( III) is almost quantitative. Because of this remarkable affinity, the PEIMPA resin has the potential for application in several fields. Further studies of the polymer are in progress.

引用

收藏

页码：943 / 955

页数：13

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