Development of a four-zone carousel process packed with metal ion-imprinted polymer for continuous separation of copper ions from manganese ions, cobalt ions, and the constituent metal ions of the buffer solution used as eluent
- Authors
- Jo, Se-Hee; Park, Chanhun; Yi, Sung Chul; Kim, Dukjoon; Mun, Sungyong
- Issue Date
- Aug-2011
- Publisher
- ELSEVIER
- Keywords
- Carousel process; Metal-ion imprinted polymer; Copper separation; Continuous separation process; Heavy metal ions
- Citation
- JOURNAL OF CHROMATOGRAPHY A, v.1218, no.33, pp.5664 - 5674
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF CHROMATOGRAPHY A
- Volume
- 1218
- Number
- 33
- Start Page
- 5664
- End Page
- 5674
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/167902
- DOI
- 10.1016/j.chroma.2011.06.094
- ISSN
- 0021-9673
- Abstract
- A three-zone carousel process, in which Cu(II)-imprinted polymer (Cu-MIP) and a buffer solution were employed as adsorbent and eluent respectively, has been developed previously for continuous separation of Cu2+ (product) from Mn2+ and Co2+ (impurities). Although this process was reported to be successful in the aforementioned separation task, the way of using a buffer solution as eluent made it inevitable that the product stream included the buffer-related metal ions (i.e., the constituent metal ions of the buffer solution) as well as copper ions. For a more perfect recovery of copper ions, it would be necessary to improve the previous carousel process such that it can remove the buffer-related metal ions from copper ions while maintaining the previous function of separating copper ions from the other 2 impure heavy-metal ions. This improvement was made in this study by proposing a four-zone carousel process based on the following strategy: (1) the addition of one more zone for performing the two-step re-equilibration tasks and (2) the use of water as the eluent of the washing step in the separation zone. The operating conditions of such a proposed process were determined on the basis of the data from a series of single-column experiments. Under the determined operating conditions, 3 runs of carousel experiments were carried out. The results of these experiments revealed that the feed-loading time was a key parameter affecting the performance of the proposed process. Consequently, the continuous separation of copper ions from both the impure heavy-metal ions and the buffer-related metal ions could be achieved with a purity of 91.9% and a yield of 92.8% by using the proposed carousel process based on a properly chosen feed-loading time.
- Files in This Item
-
Go to Link
- Appears in
Collections - 서울 공과대학 > 서울 화학공학과 > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.