It has been shown that rinsing the melt with nitrogen to drive the sulphur oxides out and promote the decomposition of the sulphate enables the sulphate content to be reduced to values of 0.11 to 0.13 wt%. The success of the physical refining process can be monitored directly in the melt by means of oxygen ion-sensitive probes.
Origin
Tech. Hochschule Aachen, Forschungsinst Der Feuerfest-Ind., Bonn
Journal Title
Glastech Ber 1990 63 7 198-203
Sector
Flat glass
Class
F 234