Silica-alumina hydrogel catalyst
US4226743A · kind A · utility
29Cited by
6References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 12, 1979 |
| Grant date | Oct 7, 1980 |
| Priority date | — |
| Expiry date | Mar 12, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G11/04
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A dense, attrition resistant catalyst is prepared by precipitating a silica alumina hydrogel at high pH, and subsequently reacting the alkaline hydrogel with sufficient acid aluminum salt at a pH below 4 to obtain an acidic hydrogel slurry. The slurry is then processed into a catalyst by spray drying, washing and ion exchanging. The catalyst may include substantial quantities of clay and/or crystalline aluminosilicate zeolites.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.