THERMAL-DISSOCIATION OF BASIC ALUMINUM AMMONIUM-SULFATE IN AN ATMOSPHERE OF HYDROGEN AND CARBON-MONOXIDE

A study was made of the effect of an atmosphere of H-2+CO (a 3:1 molar mixture) on the mechanism and the kinetics of desulfuration of basic aluminium-ammonium sulfate under variable pressures of hydrogen and ca rbon monoxide. The temperature region of the process, the nature of al most all the solid intermediates, and the equations and kinetic parame ters relating to the rate of desulfurization of the compound for alpha <0.6 were determined. Despite the complexity of the process, the resul ts permitted determination of the temperature and the composition of t he gas phase necessary for the process of desulfuration to occur and f or aluminium oxides with the required properties to be obtained.