Process for preparing materials having improved mechanical and thermal properties and materials obtained thereby
US4013590A · kind A · utility
10Cited by
3References
9Claims
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Key dates
| Filing date | Oct 31, 1974 |
| Grant date | Mar 22, 1977 |
| Priority date | — |
| Expiry date | Oct 31, 1994 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S502/50
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The mechanical and thermal properties of aluminum oxide, such as .gamma. alumina, adapted for use as a catalyst or catalyst carrier are improved through a treatment thereof with a silicon compound such as an alkyl orthosilicate in which the aluminum oxide is impregnated with the silicon compound or a solution thereof in a compatible organic solvent whose boiling point is lower than the boiling point of the silicon compound. The impregnated aluminum oxide is dried at a temperature in the range from above the boiling point of the silicon compound to 500.degree. C and is then subjected to controlled oxidation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.