DISPERSIVE KINETICS OF SOLID THERMOLYSIS - DECOMPOSITION OF BASIC ALUMINUM AMMONIUM-SULFATE

Authors
BEDNAREK J PLONKA A PACEWSKA B PYSIAK J
Citation
J. Bednarek et al., DISPERSIVE KINETICS OF SOLID THERMOLYSIS - DECOMPOSITION OF BASIC ALUMINUM AMMONIUM-SULFATE, Thermochimica acta, 283, 1996, pp. 51-60
Citations number
25
Categorie Soggetti
Chemistry Analytical
Journal title
Thermochimica acta → ACNP
ISSN journal
00406031
Volume
283
Year of publication
1996
Pages
51 - 60
Database
ISI
SICI code
0040-6031(1996)283:<51:DKOST->2.0.ZU;2-3
Abstract
The formalism of dispersive kinetics is applied for thermolysis of sol ids. As an example, the isothermal decomposition of basic aluminium am monium sulphate in vacuum is analysed. The first order dispersive kine tic equation provides a highly accurate description of thermolysis pro cesses for the three stages of decomposition: partial dehydration at t emperatures below 623 K, final dehydration and removal of ammonium in the temperature range 623-873 K, and desulphurisation at temperatures above 873 K.