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Title: Foaming of E-Glass II (Report for G Plus Project for PPG)

Abstract

In a previous study, the effect of the furnace atmosphere on E glass foaming was investigated with the specific goal to understand the impact of increased water content on foaming in oxy-fired furnaces. The present study extended the previous study and focused on the effect of glass batch chemical composition on E-glass foaming. The present study also included reruns of foam tests performed in a previous study, which resulted in the same trend: the foaming extent increased nearly linearly with the heating rate and no foam was produced when CO2 + 55% H2O atmosphere was introduced at 300°C. It was shown that the lack of foaming in the test with CO2 + 55% H2O atmosphere introduced at 300°C was caused by a loss of sulfate at T <1250°C because of higher water content at the early stages of melting. The tests with new batches in the present study showed that replacing quicklime with limestone tend to decrease foaming, possibly caused by increased sulfate loss during early stages of melting in the batch with limestone. The batches where Na2SO4 was replaced with NaNO3, NaNO3 + CeO2, or CeO2, produced only very limited foaming regardless of the replacing components. As expected, themore » foaming extent increased as the sulfate content in the batch increased. The results of the present study suggest that foaming can be reduced by using limestone over quicklime and by decreasing the sulfate addition to a minimum required for refining.« less

Authors:
; ; ; ;
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
973457
Report Number(s):
PNNL-15394
830403000; TRN: US1001838
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; CHEMICAL COMPOSITION; FURNACES; GLASS; FOAMS; HEATING RATE; LIMESTONE; MELTING; SULFATES; MATERIAL SUBSTITUTION; RADIOACTIVE WASTE PROCESSING; E-glass; foam; sulfate; bubble; glass melting

Citation Formats

Kim, Dong-Sang, Portch, Matthew P., Matyas, Josef, Hrma, Pavel R., and Pilon, Laurent. Foaming of E-Glass II (Report for G Plus Project for PPG). United States: N. p., 2005. Web. doi:10.2172/973457.
Kim, Dong-Sang, Portch, Matthew P., Matyas, Josef, Hrma, Pavel R., & Pilon, Laurent. Foaming of E-Glass II (Report for G Plus Project for PPG). United States. doi:10.2172/973457.
Kim, Dong-Sang, Portch, Matthew P., Matyas, Josef, Hrma, Pavel R., and Pilon, Laurent. Fri . "Foaming of E-Glass II (Report for G Plus Project for PPG)". United States. doi:10.2172/973457. https://www.osti.gov/servlets/purl/973457.
@article{osti_973457,
title = {Foaming of E-Glass II (Report for G Plus Project for PPG)},
author = {Kim, Dong-Sang and Portch, Matthew P. and Matyas, Josef and Hrma, Pavel R. and Pilon, Laurent},
abstractNote = {In a previous study, the effect of the furnace atmosphere on E glass foaming was investigated with the specific goal to understand the impact of increased water content on foaming in oxy-fired furnaces. The present study extended the previous study and focused on the effect of glass batch chemical composition on E-glass foaming. The present study also included reruns of foam tests performed in a previous study, which resulted in the same trend: the foaming extent increased nearly linearly with the heating rate and no foam was produced when CO2 + 55% H2O atmosphere was introduced at 300°C. It was shown that the lack of foaming in the test with CO2 + 55% H2O atmosphere introduced at 300°C was caused by a loss of sulfate at T <1250°C because of higher water content at the early stages of melting. The tests with new batches in the present study showed that replacing quicklime with limestone tend to decrease foaming, possibly caused by increased sulfate loss during early stages of melting in the batch with limestone. The batches where Na2SO4 was replaced with NaNO3, NaNO3 + CeO2, or CeO2, produced only very limited foaming regardless of the replacing components. As expected, the foaming extent increased as the sulfate content in the batch increased. The results of the present study suggest that foaming can be reduced by using limestone over quicklime and by decreasing the sulfate addition to a minimum required for refining.},
doi = {10.2172/973457},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Sep 23 00:00:00 EDT 2005},
month = {Fri Sep 23 00:00:00 EDT 2005}
}

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