Process for cullet beneficiation

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United States of America Patent

PATENT NO 9556050
APP PUB NO 20150110980A1
SERIAL NO

14057112

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Abstract

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A process for cullet beneficiation by precipitation. A mass of cullet is melted to form a body of molten glass having a heavy metal con ration of greater than 100 ppm. A precipitate agent is introduced into the body of molten glass to form a heavy metal-containing precipitate phase and a liquid beneficiated glass phase within the body of molten glass. The precipitate phase may have a density greater than that of the liquid beneficiated glass phase. Thereafter, the liquid beneficiated glass phase is physically separated from the precipitate phase. The separated liquid beneficiated glass phase has a reduced concentration of heavy metals, as compared to the concentration of heavy metals in the body of molten glass.

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Patent Owner(s)

  • OWENS-BROCKWAY GLASS CONTAINER INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Click, Carol A Corning, US 21 62
Ordway, Edward A Toledo, US 3 9
Vempati, Udaya Perrysburg, US 11 37

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