发明授权
US5435988A Clathrasil of the dodecasil 1 H structural type having a small average
crystal size
失效
十二面体1 H结构型的斜纹石具有小的平均晶体尺寸
- 专利标题: Clathrasil of the dodecasil 1 H structural type having a small average crystal size
- 专利标题(中): 十二面体1 H结构型的斜纹石具有小的平均晶体尺寸
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申请号: US24962申请日: 1993-03-02
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公开(公告)号: US5435988A公开(公告)日: 1995-07-25
- 发明人: Michael Grebner , Axel Reich , Ferdi Schuth , Klaus Unger
- 申请人: Michael Grebner , Axel Reich , Ferdi Schuth , Klaus Unger
- 申请人地址: DEX Darmstadt
- 专利权人: Merck Patent Gesellschaft mit Beschrankter Haftung
- 当前专利权人: Merck Patent Gesellschaft mit Beschrankter Haftung
- 当前专利权人地址: DEX Darmstadt
- 优先权: DEX4206553.4 19920302
- 主分类号: A61K8/18
- IPC分类号: A61K8/18 ; A61K8/25 ; A61K8/41 ; A61K8/46 ; A61K8/49 ; A61Q1/02 ; B01J13/06 ; C01B33/20 ; C01B37/02 ; C01B39/00 ; C01B39/04 ; C08K3/34 ; C08K9/04 ; C09B67/02 ; C09C1/28 ; C09C3/06 ; C09C3/08 ; C09D7/12 ; C09D17/00 ; C01B33/26 ; B01J29/06
摘要:
The invention relates to a process for the preparation of crystalline clathrasil of the dodecasil 1 H structural type having an average crystal size of not more than 20 .mu.m, characterised in that an alkaline aqueous silicate-containing medium comprising templates and crystallisation seeds is heat-treated, the crystallisation seeds content, relative to the SiO.sub.2 content of the medium, being not less than 1% by weight.