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Indian Journal of Chemical Technology (IJCT) >
IJCT Vol.18 [2011] >
IJCT Vol.18(1) [January 2011] >
| Title: | Ion exchange recovery of nickel(II) on macroporous weak acid resin (D151 resin) |
| Authors: | Xiong, Chunhua
Yao, Caiping |
| Keywords: | Macroporous weak acid resin (D151 resin)
Ni(II)
Removal
Recovery |
| Issue Date: | Jan-2011 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | The recovery and removal of Ni(II) by macroporous weak acid resin (D151
resin) have been investigated, and the optimal ion has been achieved at pH value 6.90
in HAc-NaAc medium. The statically saturated capacity is 152
mg/g resin
at 298 K and the thermodynamic parameters are ΔH = 13.2kJ/mol, ΔG = –17.6
kJ/mol, ΔS = 103 J/(mol·K), respectively. Both pseudo-first-order and second-order kinetics are applied to search for
the best fitted kinetic model to the sorption results. Modelling of the
equilibrium data with Freundlich and Langmuir isotherms revealed that the
correlation coefficient is more satisfactory with the Freundlich model. EDS analysis confirmed that Ni(II) is adsorbed
onto D151 resin. Moreover, the characterization of both before and after
adsorption of Ni(II) ion on D151 resin is undertaken using SEM and IR
spectroscopic technique. The spent sorbent is eluted with HCl demonstrating the
best result (∼100% desorption). |
| Page(s): | 13-20 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-0991 (Online); 0971-457X (Print) |
| Source: | IJCT Vol.18(1) [January 2011]
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