Reactions of wüstite and hematite with different chlorinating agents - Université de Lorraine Access content directly
Journal Articles Thermochimica Acta Year : 1999

Reactions of wüstite and hematite with different chlorinating agents

Abstract

Chlorination of wüstite (Fe(1−x)O) and hematite (Fe2O3) with Cl2 + CO and Cl2 + N2 was studied by thermogravimetric analysis using non-isothermal conditions up to about 1000°C. The wüstite started to react with the carbochlorinating gas mixtures at low temperatures producing FeCl3 and Fe2O3 as final reaction products. The presence of carbon monoxide, during non-isothermal tests, enhanced the chlorination of wüstite at temperatures higher than 550°C when the produced hematite started to react with carbochlorinating gas mixture. The separate treatment of the two oxides under isothermal conditions in Cl2 + CO for 2 h led to their full reaction at about 550°C. An apparent activation energy of about 53 kJ/mol was obtained for the carbochlorination of hematite between 350°C and 550°C. Reaction of wüstite with FeCl3 was also studied by thermogravimetric analysis using non-isothermal conditions. Higher oxides of iron and ferrous chloride were the main reaction products at 600°C, even in the presence of carbon monoxide.
Fichier principal
Vignette du fichier
NK_FeO_CCl_Texte_Hal_Total.pdf (85.38 Ko) Télécharger le fichier
Origin : Files produced by the author(s)
Loading...

Dates and versions

hal-01508028 , version 1 (02-05-2017)

Licence

Open licence - etalab

Identifiers

Cite

Ndue Kanari, Eric Allain, I. Gaballah. Reactions of wüstite and hematite with different chlorinating agents. Thermochimica Acta, 1999, 335, pp. 79-86. ⟨10.1016/S0040-6031(99)00180-X⟩. ⟨hal-01508028⟩

Collections

CNRS UNIV-LORRAINE
72 View
561 Download

Altmetric

Share

Gmail Facebook X LinkedIn More