Thermal decomposition of dolomite in an atmosphere of carbon dioxide. The effect of procedural variables in thermal analysis

The effects of procedural variables on dolomite decomposition in carbon dio xide were investigated. The partial pressure of carbon dioxide causes dolom ite decomposition to split into a two-stage process. It was observed that t he first stage of dolomite decomposition is progressively displaced to high er temperatures with an increase in heating rate. However, the second stage is not affected significantly by changes in the heating rate. These studie s also indicate that decrepitation analysis on dolomite in CO2 provides bet ter information as compared to experiments in other atmospheres. The flow r ate of the purge gas does not influence the thermal behavior of dolomite.