METHOD FOR PRODUCING MOLTEN GLASS, AND METHOD FOR PRODUCING GLASS PRODUCT
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United States of America Patent
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app pub date -
Jan 22, 2014
filing date -
Jul 19, 2011
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Abstract
To provide a method for producing molten glass, whereby formation of dust can be suppressed when the molten glass is produced by an in-flight melting method. Granules containing silica sand and satisfying the following conditions (1) to (3) are used. (1) In a particle size distribution curve obtained by measuring the granules passed through a sieve having 1 mm openings by a dry laser diffraction scattering method, D50 representing the cumulative volume median diameter is from 80 to 800 μm. (2) The average particle size of the silica sand in the granules is from 1 to 40 μm. (3) In a particle size distribution curve obtained by measuring water-insoluble particles to constitute the granules by a wet laser diffraction scattering method, the ratio of D90/D10 is at least 10.
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