National Technical Reports Library

The National Technical Information Service acquires, indexes, abstracts, and archives the largest collection of U.S. government-sponsored technical reports in existence. The NTRL offers online, free and open access to these authenticated government technical reports. Technical reports and documents in its repository may be available online for free either from the issuing federal agency, the U.S. Government Publishing Office’s Federal Digital System website, or through search engines.

Details

Dependency of Sulfate Solubility on Melt Composition and Melt Polymerization (U).

DE2004830590

Publication Date	2004
Personal Author	Jantzen, C. M.; Smith, M. E.; Peeler, D.K.
Page Count	18
Abstract	Sulfate and sulfate salts are not very soluble in borosilicate waste glass. When sulfate is present in excess it can form water soluble secondary phases and/or a molten salt layer (gall) on the melt pool surface which is purported to cause steam explosions in slurry fed melters. Therefore, sulfate can impact glass durability while formation of a molten salt layer on the melt pool can impact processing. Sulfate solubility has been shown to be compositionally dependent in various studies, (e.g. , B2O3, Li2O, CaO, MgO, Na2O, and Fe2O3 were shown to increase sulfate solubility while Al2O3 and SiO2 decreased sulfate solubility). This compositional dependency is shown to be related to the calculated melt viscosity at various temperatures and hence the melt polymerization.
Keywords	Sulfate Solubility Borosilicate glass Waste disposal Molten salts Melting behavior Concentration (Composition) Polymerization Salts Melt pool Sulfate salts
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Savannah River National Laboratory, Aiken, SC.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200514

Dependency of Sulfate Solubility on Melt Composition and Melt Polymerization (U).

Dependency of Sulfate Solubility on Melt Composition and Melt Polymerization (U).
DE2004830590

Publication Date	2004
Personal Author	Jantzen, C. M.; Smith, M. E.; Peeler, D.K.
Page Count	18
Abstract	Sulfate and sulfate salts are not very soluble in borosilicate waste glass. When sulfate is present in excess it can form water soluble secondary phases and/or a molten salt layer (gall) on the melt pool surface which is purported to cause steam explosions in slurry fed melters. Therefore, sulfate can impact glass durability while formation of a molten salt layer on the melt pool can impact processing. Sulfate solubility has been shown to be compositionally dependent in various studies, (e.g. , B2O3, Li2O, CaO, MgO, Na2O, and Fe2O3 were shown to increase sulfate solubility while Al2O3 and SiO2 decreased sulfate solubility). This compositional dependency is shown to be related to the calculated melt viscosity at various temperatures and hence the melt polymerization.
Keywords	Sulfate Solubility Borosilicate glass Waste disposal Molten salts Melting behavior Concentration (Composition) Polymerization Salts Melt pool Sulfate salts
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Savannah River National Laboratory, Aiken, SC.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200514