Abstract
The possibility of modified thermal analytical techniques is discussed with respect to the control and optimization of glass production. Calorimetry and EGA-measurements are particularly interesting. A ‘reversed’ drop calorimeter is described for the determination of the energy expended in the heating of a glass batch into the original state of constitution. A piece of special EGA-equipment with MS-gas detection allows the determination of vaporization of chemical reactive and toxic species such as halides, AS2O3, Na2O, PbO etc. evolved out of the glass batch during the thermal treatment. A possibility of production control by means of vacuum gas release profiles of glass-specimens is demonstrated.
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