HK1007977A1 - Porous amorphous silica-alumina refractory oxides their preparation and use as separation membranes - Google Patents
Porous amorphous silica-alumina refractory oxides their preparation and use as separation membranesInfo
- Publication number
- HK1007977A1 HK1007977A1 HK98107277A HK98107277A HK1007977A1 HK 1007977 A1 HK1007977 A1 HK 1007977A1 HK 98107277 A HK98107277 A HK 98107277A HK 98107277 A HK98107277 A HK 98107277A HK 1007977 A1 HK1007977 A1 HK 1007977A1
- Authority
- HK
- Hong Kong
- Prior art keywords
- preparation
- amorphous silica
- separation membranes
- refractory oxides
- alumina refractory
- Prior art date
Links
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
HK98107277A HK1007977A1 (en) | 1992-06-02 | 1998-06-27 | Porous amorphous silica-alumina refractory oxides their preparation and use as separation membranes |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9507518A GB2287460B (en) | 1992-06-02 | 1992-06-02 | Porous amorphous silica-alumina refractory oxides,their preparation and use as separation membranes |
GB9211617A GB2267486B (en) | 1992-06-02 | 1992-06-02 | Porous amorphous silica-alumina refractory oxides, their preparation and use as separation membranes |
HK98107277A HK1007977A1 (en) | 1992-06-02 | 1998-06-27 | Porous amorphous silica-alumina refractory oxides their preparation and use as separation membranes |
Publications (1)
Publication Number | Publication Date |
---|---|
HK1007977A1 true HK1007977A1 (en) | 1999-04-30 |
Family
ID=27266221
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HK98107277A HK1007977A1 (en) | 1992-06-02 | 1998-06-27 | Porous amorphous silica-alumina refractory oxides their preparation and use as separation membranes |
Country Status (1)
Country | Link |
---|---|
HK (1) | HK1007977A1 (en) |
-
1998
- 1998-06-27 HK HK98107277A patent/HK1007977A1/en not_active IP Right Cessation
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PC | Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee) |