Method for recuperating thermal energy of gases of an electrometallurgical furnace and use for making silica powder
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United States of America Patent
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Issued Date -
Jun 26, 2003
app pub date -
Dec 27, 2002
filing date -
Mar 28, 2000
priority date (Note) -
Abandoned
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Abstract
The invention concerns a method for recuperating thermal energy of hot gases of a submerged-arc furnace designed to make metal alloys by atomization of a powder from solid particles suspended in an aqueous phase. The solid particles are, preferably, derived from the filtering of gases emitted by the electric furnace. The invention also concerns a method for making silica powder with improved properties from fumes of a silicon or ferro-silicon furnace, which consists in preparing a suspension of said fumes in water and atomizing said suspension.
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