Continuous separation of copper ions from a mixture of heavy metal ions using a three-zone carousel process packed with metal ion-imprinted polymer

In this study, a three-zone carousel process based on a proper molecular imprinted polymer (MIP) resin was developed for continuous separation of Cu 2+ from Mn 2+ and Co 2+. For this task, the Cu (II)-imprinted polymer (Cu-MIP) resin was synthesized first and used to pack the chromatographic columns...

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Bibliographic Details
Published in:Journal of Chromatography A 2010-11, Vol.1217 (45), p.7100-7108
Main Authors: Jo, Se-Hee, Lee, See-Young, Park, Kyeong-Mok, Yi, Sung Chul, Kim, Dukjoon, Mun, Sungyong
Format: Article
Language:English
Subjects:
Analytical chemistry
Carousel process
Carousels
Chemistry
Chromatographic methods and physical methods associated with chromatography
Chromatography
Continuous separation process
Copper
Copper separation
Exact sciences and technology
Heavy metals
Metal-ion imprinted polymer
Other chromatographic methods
Polymers
Process design
Resins
Separation
Tasks
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Summary:In this study, a three-zone carousel process based on a proper molecular imprinted polymer (MIP) resin was developed for continuous separation of Cu 2+ from Mn 2+ and Co 2+. For this task, the Cu (II)-imprinted polymer (Cu-MIP) resin was synthesized first and used to pack the chromatographic columns of a three-zone carousel process. Prior to the experiment of the carousel process based on the Cu-MIP resin (MIP-carousel process), a series of single-column experiments were performed to estimate the intrinsic parameters of the three heavy metal ions and to find out the appropriate conditions of regeneration and re-equilibration. The results from these single-column experiments and the additional computer simulations were then used for determination of the operating parameters of the MIP-carousel process under consideration. Based on the determined operating parameters, the MIP-carousel experiments were carried out. It was confirmed from the experimental results that the proposed MIP-carousel process was markedly effective in separating Cu 2+ from Mn 2+ and Co 2+ in a continuous mode with high purity and a relatively small loss. Thus, the MIP-carousel process developed in this study deserves sufficient attention in materials processing industries or metal-related industries, where the selective separation of heavy metal ions with the same charge has been a major concern.
ISSN:0021-9673
DOI:10.1016/j.chroma.2010.09.014