发明名称 |
Method for preparation of silica particles |
摘要 |
Silica particles which are substantially spherical, have a particle size of 1 to 100 mu m, a very narrow pore size distribution and a low alkali metal content. The particles can be prepared by sol-gel technique using emulsification technique for drop formation. The process comprises a sol growth step in a basic environment based on ammonium or amines and a post-treatment in such an environment. The silica particles are particularly suitable for use in chromatography as they have very good particle and porosity properties and high purity.
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申请公布号 |
US5256386(A) |
申请公布日期 |
1993.10.26 |
申请号 |
US19900540307 |
申请日期 |
1990.06.14 |
申请人 |
EKA NOBEL AB |
发明人 |
NYSTROEM, MATS;HERRMANN, WOLGANG;LARSSON, BERNT |
分类号 |
B01J20/10;B01J21/08;C01B33/16;(IPC1-7):C01B33/12 |
主分类号 |
B01J20/10 |
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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