Electrochemical Monitoring In Industrial Glass Melts

Two electrochemical sensors have been developed, which allow the on-line detection of oxygen, iron and sulfur in glass melts. While normally no simple relation between the batch composition and the product properties exists, a relation between the batch composition and the oxygen activity of the melt can be shown as well as the effect of detected oxygen, iron and sulfur on the transmission behaviour of the glass product. Thus, the combination of the two sensors is a useful tool to support the glass manufacturer, especially if the introduction of recycled cullet and filter dust has to be managed.