| 发明名称 |
SILICIUMDIOXYDEPOLYMORF. |
| 摘要 |
A new silica polymorph exhibiting a similar X-ray powder diffraction pattern to Zeolite ZSM-5 is produced by inclusion of phosphate or sulphate ions in the silica so reaction mixture which is refluxed or autoclaved. The polymorph exhibits improved thermal stability and an absence of an infrared adsorption band at a wave number of 700 cm<-1>. |
| 申请公布号 |
NL8104347(A) |
申请公布日期 |
1982.04.16 |
| 申请号 |
NL19810004347 |
申请日期 |
1981.09.22 |
| 申请人 |
NORTON COMPANY TE WORCESTER, MASSACHUSETTS, VER.ST.V.AM. |
发明人 |
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| 分类号 |
C01B33/12;B01J20/10;B01J20/16;B01J27/16;B01J29/035;B01J29/04;B01J29/82;C01B37/02;C07C1/20;C07C4/06;C07C5/27 |
主分类号 |
C01B33/12 |
| 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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