Letter Report. Proposed Approach for Development of LAW Glass Formulation Correlation, VSL-04L4460-1, Rev. 2
Letter Report. Proposed Approach for Development of LAW Glass Formulation Correlation, VSL-04L4460-1, Rev. 2

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Published: 2015

Total Pages: 68

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The main objective of the work is to develop a correlation that employs waste composition information to determine the appropriate waste loading, glass composition, and amounts and types of glass formers. In addressing this objective emphasis has been placed on those compositions that have been validated in DM100 and LAW Pilot Melter testing. This is particularly important in view of the essential role that potential for sulfate phase separation in the melter plays in glass formulation selection. A further objective of this work is to select and test glass compositions in order to augment the existing data set and to test the predictions from the correlation. It should be noted that the intent of the correlation is to provide practical, robust glass formulations that exceed all of the contract and processability requirements; it is not intended to provide the "maximum achievable" waste loading such that at least one of those properties is at its respective limit.

Final Report. Baseline LAW Glass Formulation Testing, VSL-03R3460-1, Rev. 0
Final Report. Baseline LAW Glass Formulation Testing, VSL-03R3460-1, Rev. 0

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Published: 2015

Total Pages: 172

ISBN-13:

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The major objective of the baseline glass formulation work was to develop and select glass formulations that are compliant with contractual and processing requirements for each of the LAW waste streams. Other objectives of the work included preparation and characterization of glasses with respect to the properties of interest, optimization of sulfate loading in the glasses, evaluation of ability to achieve waste loading limits, testing to demonstrate compatibility of glass melts with melter materials of construction, development of glass formulations to support ILAW qualification activities, and identification of glass formulation issues with respect to contract specifications and processing requirements.

Final Report - Enhanced LAW Glass Formulation Testing, VSL-07R1130-1, Rev. 0, Dated 10/05/07
Final Report - Enhanced LAW Glass Formulation Testing, VSL-07R1130-1, Rev. 0, Dated 10/05/07

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Published: 2013

Total Pages:

ISBN-13:

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The principal objective of this work was to extend the glass formulation methodology developed in the earlier work [2, 5, 6] for Envelope A, B and C waste compositions for development of compliant glass compositions targeting five high sodium-sulfur waste loading regions. This was accomplished through a combination of crucible-scale tests, and tests on the DM10 melter system. The DM10 was used for several previous tests on LAW compositions to determine the maximum feed sulfur concentrations that can be processed without forming secondary sulfate phases on the surface of the melt pool. This melter is the most efficient melter platform for screening glass compositions over a wide range of sulfate concentrations and therefore was selected for the present tests. The tests were conducted to provide information on melter processing characteristics and off-gas data, including sulfur incorporation and partitioning. As described above, the main objective was to identify the limits of waste loading in compliant glass formulations spanning the range of expected Na2O and SO3 concentrations in the LAW glasses.