Process of sintering alkaline earth metal carbonates
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United States of America Patent
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Feb 21, 1989
Grant Date -
N/A
app pub date -
Jan 30, 1987
filing date -
Jan 30, 1987
priority date (Note) -
Expired
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Abstract
A strontium or barium carbonate product that is better suited for use as a glass ingredient is obtained by sintering the powdered carbonate in a kiln lined with fused amorphous silica. The carbonate picks up fewer harmful contaminants from the amorphous silica lining than it does from, say, a refractory silica-alumina brick lining or a kiln having a metallic inner surface.
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