METHOD OF PREPARING A MELT FOR THE PRODUCTION OF MAN-MADE MINERAL FIBRES
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United States of America Patent
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Jan 18, 2024
app pub date -
Nov 19, 2021
filing date -
Nov 19, 2020
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Abstract
The invention relates to a method of preparing a mineral melt in a cupola furnace that uses at least one plasma torch to provide heat energy to the furnace. The plasma torch uses nitrogen, carbon monoxide, carbon dioxide, or a mixture thereof as the carrier gas. The invention also relates to a cupola furnace for the preparation of the mineral melt, and the use of a plasma torch in a cupola furnace to reduce the amount of NOx and/or hydrogen in the furnace off-gas.
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