发明名称 |
RAW MATERIAL COMPOSITION FOR SODA-LIME GLASS |
摘要 |
The present invention provides a raw material composition for soda-lime glass capable of effectively suppressing formation of nickel sulfide (NiS) in the course of melting of the glass raw material. A nickel sulfide (NiS) impurity present in soda-lime glass is formed in a high-temperature vitrification step in which metal particles containing Ni and an Ni component of stainless steel used for the interior of a melting furnace, which are mixed into glass raw material, react at high temperature with a sulfur (S) component in Na2SO4 serving as a glass raw material. However, when an additive containing an oxide, a chloride, a sulfate, or a nitrate of a metal is added in a very small amount and in advance to glass raw material, formation of NiS by the reaction between Ni and S in the course of melting can be suppressed or completely eliminated. |
申请公布号 |
EP1029826(A4) |
申请公布日期 |
2003.06.18 |
申请号 |
EP19990926942 |
申请日期 |
1999.07.06 |
申请人 |
NIPPON SHEET GLASS CO., LTD. |
发明人 |
SAKAI, CHIHIRO;TOSHIKIYO, YOSHIKAZU |
分类号 |
C03C3/087;C03C1/00;C03C6/00 |
主分类号 |
C03C3/087 |
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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