Glass redox control in submerged combustion melting
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United States of America Patent
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Jul 16, 2024
Grant Date -
Sep 7, 2023
app pub date -
May 10, 2023
filing date -
Feb 12, 2020
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Abstract
A method of producing glass using submerged combustion melting includes supplying a combustible gas mixture to one or more submerged burners of a submerged combustion melter, combusting the combustible gas mixture supplied to the submerged burner(s) to produce combustion products, and discharging the combustion products from the submerged burner(s) directly into a glass melt contained within the submerged combustion melter to agitate and heat the glass melt. The glass melt is comprised of soda-lime-silica glass and has a redox ratio. Additionally, the disclosed method involves controlling one or more operating conditions of the submerged combustion melter selected from (1) an oxygen-to-fuel ratio of the combustible gas mixture supplied to each of the submerged burners, (2) a residence time of the glass melt, and (3) a gas flux through the glass melt.
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