Redox conditions during tlie melting of batch

Abstract

During the mehing down of glass batches a variety of gases are set free. The redox conditions of the melt can be influenced by these gases, because both the gases and the melt are at the same time in a temperature range of 200 K. For the quantification of this influence batches with different charges of coal were heated in comparison with a batch without additions of coal. The final temperature was 1000°C and the heating rate lOK/min. With the continuous measurement of the oxygen partial pressure and the content of CO in the gas the effect of coal on the reactions of gases during the heating of batches can be described.