Extraction Kinetics of Cerium(III) from Chloride Medium by Di-(2-Ethylhexyl)phosphoric Acid in the Presence of Acetic Acid Using a Constant Interfacial Area Cell with Laminar flow

Autor: Hong Tao Chang, Fu Shun Zhang, Yan Hong Hu, Zhao Gang Liu, Mei Li
Rok vydání: 2012
Předmět:
Zdroj: Advanced Materials Research. :2204-2209
ISSN: 1662-8985
DOI: 10.4028/www.scientific.net/amr.482-484.2204
Popis: The Ce(III) extraction kinetics with di-(2-ethylhexyl)phosphoric acid (D2EHPA) in the presence of a complexing agent acetic acid(HAc) has been investigated using constant interfacial cell with laminar flow. The kinetics mechanism and extraction rate equation were achieved by the studies on the effect of stirring rate, temperature and specific interfacial area on the rate of extraction. The effect of temperature on the kinetics was analyzed, the value of the apparent activation energy was calculated as 11.96 kJ/mol, and it was found that the extraction process was a diffusion-controlled kinetics regime.
Databáze: OpenAIRE