发明名称 |
Method of making glass with preliminary reaction of batch materials. |
摘要 |
<p>Silica is reacted with sodium carbonate to form sodium silicate as a preliminary step in a glass melting process. Preferably, calcium carbonate-containing batch materials are calcined separately and then combined with the sodium silicate as liquefying is initiated. The materials may be substantially free of bubble-producing carbonates as the molten phase begins to form.</p> |
申请公布号 |
EP0355618(A2) |
申请公布日期 |
1990.02.28 |
申请号 |
EP19890114881 |
申请日期 |
1989.08.11 |
申请人 |
PPG INDUSTRIES, INC. |
发明人 |
DEMAREST, HENRY MARTIN, JR. |
分类号 |
C03B1/00;C03B3/02;C03C1/02;C03C6/04 |
主分类号 |
C03B1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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