The Use Of Feldspatic Sands In The Production Of Technical And Artistic Glassware: Results Obtained Referred To The Increase In Hydrolytic Resistance And The Decrease In Dosage Of Decolorisers

Artistic glass production has always used high silica sands because those sands containing alumina are more often than not characterised by levels of Fe203 that are too high for this type of application. The use of Sasil sands, and in particular of the type deonominated 10/01, has produced a glass that is aesthetically perfect with improved hydrolytic resistance (or weathering) of the final product due to the alumina content of this type of sand. This article deals with the particular glass melting process and requirements for this specific glass industry sector and details the results obtained using type 10/01 Sasil sand.