OXIDATION-KINETICS OF FE(II)NTA TO FE(III)NTA BY OXYGEN

Authors
VANVELZEN D ACTISDATO LO HOFELE J
Citation
D. Vanvelzen et al., OXIDATION-KINETICS OF FE(II)NTA TO FE(III)NTA BY OXYGEN, Chemical engineering and processing, 35(6), 1996, pp. 443-449
Citations number
12
Categorie Soggetti
Engineering, Chemical","Energy & Fuels
Journal title
Chemical engineering and processing → ACNP
ISSN journal
02552701
Volume
35
Issue
6
Year of publication
1996
Pages
443 - 449
Database
ISI
SICI code
0255-2701(1996)35:6<443:OOFTFB>2.0.ZU;2-I
Abstract
The oxidation of aqueous solutions of Fe(II)NTA was investigated in a bubble column reactor. The rate of the oxidation reaction was found to be proportional to the partial pressure of oxygen and to have an orde r of 0.5 with respect to the Fe(II)NTA concentration. The overall tran sfer of oxygen appears to be predominantly reaction controlled for Fe( II)NTA concentrations in the order of 1 mmol l(-1), whereas for high c oncentrations (100 mmol l(-1)) mass transfer becomes the controlling f actor. Overall mass transfer coefficients and reaction rate constants were determined in the range between 25 and 60 degrees C and for a wid e range of Fe(II)NTA concentrations (5-250 mmol l(-1)).