Preferential extraction of gallium from Bayer liquor using ion exchange chelating resin containing hydroxamic acid functional group

2003 ◽  
Vol 78 (5) ◽  
pp. 555-561 ◽  
Author(s):  
K Srinivasa Rao ◽  
D Sarangi ◽  
PK Dash ◽  
G Roy Chaudhury
Author(s):  
Abdelhamid Addala ◽  
Moussa Boudiaf ◽  
Maria Elektorowicz ◽  
Embarek Bentouhami ◽  
Yacine Bengeurba

Abstract Under varied conditions, the IRC 718 ion-exchange resin is used to extract chromium (VI) ions from aqueous solutions. On chromium (VI) removal effectiveness, the effects of adsorption dosage, contact time, beginning metal concentration, and pH were examined. The batch ion exchange process reached equilibrium after around 90 minutes of interaction. With an initial chromium (VI) concentration of 0.5 mg/dm3, the pH-dependent ion-exchange mechanism revealed maximal removal in the pH 2.0–10 range . The adsorption mechanism occurs between Cr(VI) determined as the electron acceptor, and IRC 718 determined as the electron donor. The equilibrium ion-exchange potential and ion transfer quantities for Amberlite IRC 718 were calculated using the Langmuir adsorption isotherm model. The overall ion exchange capacity of the resin was determined to be 187.72 mg of chromium (VI)/g of resin at an ideal pH of 6.0.


2020 ◽  
Vol 313 ◽  
pp. 113555
Author(s):  
Mohammednoor Altarawneh ◽  
Daniela Waters ◽  
Bee-Min Goh ◽  
Zhong-Tao Jiang ◽  
Mohanad El-Harbawi ◽  
...  

2006 ◽  
Vol 23 (1) ◽  
pp. 22-26
Author(s):  
K. S. Rao ◽  
G. R. Chaudhury ◽  
P. G. Krishna ◽  
S. C. Das ◽  
V. N. Misra

2019 ◽  
Vol 8 (5) ◽  
pp. 4464-4469 ◽  
Author(s):  
Amilton Barbosa Botelho Junior ◽  
André de Albuquerque Vicente ◽  
Denise Crocce Romano Espinosa ◽  
Jorge Alberto Soares Tenório

Sign in / Sign up

Export Citation Format

Share Document