ZHU Qianqian, XIONG Chunhua, LI Jionghui, et al. Adsorption and desorption of tungsten ions in water by morpholine chelate resin[J]. CIESC Journal, 2017, (8): 3119-3125.
ZHU Qianqian, XIONG Chunhua, LI Jionghui, et al. Adsorption and desorption of tungsten ions in water by morpholine chelate resin[J]. CIESC Journal, 2017, (8): 3119-3125.DOI: 10.11949/j.issn.0438-1157.20170163.
the adsorption and desorption properties of chelating resin for tungsten have been investigated
batch studies were carried out
and the FTIR
TGA
Zeta and SEM were characterized before and after adsorption. The results showed that the optimal adsorption condition was at pH 4.0
308 K
the maximum saturated adsorption capacity of tungsten is 349.2 mg·g-1
with a high selectivity adsorption capacity. The adsorption kinetic and equilibrium data were fitted well with the pseudo-second-order model and the Langmuir isotherm model
respectively. Desorption studies revealed tungsten ion could be eluted effectively by using the 2%(mass) NaOH solution
the desorption efficiency was 100%. PS-MPL resin has the advantages of high selectivity