| Fining of Flint Glass Melts Containing Blast Furnace Slag |
| Ki-Dong Kim |
| Department Materials Science & Engineering, Kunsan National University |
|
|
|
|
|
| ABSTRACT |
|
In this study, flint glass batches with blast furnace slag (BFS) were prepared and the contribution of the BFS to the fining of melts was studied through investigations of the melting and fining characteristics. Additionally, a sulfur redox reaction for BFS-doped melts was examined by square wave voltammetry (SWV). The results of the melting & fining test showed that BFS improved the fining of the melts. In a voltammogram of BFS-doped melts, two reduction peaks were shown at high frequencies while only one peak appeared at low frequencies. The peaks were located at a potential that was similar to those of melts fined by sulfate. From those results it was concluded that sulfide ($S^{2-}$) in BFS has effects in glass melts that are identical to those of sulfate ($SO_4^{2-}$). |
| Key words:
Blast furnace slag, Sulfur, Sulfate, Sulfide, Fining, Square wave voltammetry |
|
|
|
PDF Links
Full text via DOI
Download Citation 
