INVESTIGADORES
ESQUIVEL Marcelo Ricardo Oscar
artículos
Título:
Intrinsic Kinetics of the Chlorination of Hematite Powder between 898 and 1023 K
Autor/es:
D. PASQUEVICH; J. GAVIRIA; M.R. ESQUIVEL; A. BOHE
Revista:
METALLURGICAL AND MATERIALS TRANSACTIONS B
Editorial:
Springer Boston
Referencias:
Lugar: Boston; Año: 2006 vol. 37B p. 589 - 597
ISSN:
0360-2141
Resumen:
The kinetics of the chlorination of hematite powder was investigated between 898 and 1023 K by
isothermal thermogravimetry. The influence of the chlorine partial pressure and sample size on the
reaction rate was studied between 15 and 70 kPa and between 0.5 and about 50 mg, respectively. The
reaction occurs under mixed control; pore diffusion and chemical reaction are the rate-controlling
steps. An apparent reaction order of 0.5 with respect to chlorine partial pressure (that implies a zero
intrinsic order) and a value of activation energy of 451 kJ/mol were found.
