Process for the preparation of mixed silica-zirconia sols and mixed oxides obtained in spherical form
US5780004A · kind A · utility
2Cited by
1References
10Claims
0Family size
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Key dates
| Filing date | Jun 26, 1996 |
| Grant date | Jul 14, 1998 |
| Priority date | — |
| Expiry date | Jun 26, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J35/60
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for the preparation of mixed silica-zirconia sols and mixed oxides in spherical form, comprising mixing a silicon alkoxide with a solution of an inorganic zirconium salt in a low molecular weight polyol and subjecting the intermediate thus formed to acid hydrolysis in a water medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.