Preparative process for alkaline earth metal, aluminum-containing spinels
US4522937A · kind A · utility
29Cited by
2References
21Claims
0Family size
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Key dates
| Filing date | Sep 10, 1984 |
| Grant date | Jun 11, 1985 |
| Priority date | — |
| Expiry date | Sep 10, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S502/524
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An improved process for the production of alkaline earth, aluminum-containing spinel compositions, preferably magnesium, aluminum-containing spinel compositions and at least one additional metal component, comprises combining alkaline earth metal, aluminum and additional metal components at selected pH conditions to form a precipitate and calcining the precipitate to form a spinel composition. The product spinel composition, is particularly suited for use to reduce the amount of sulfur oxides emitted from a catalyst regeneration zone, e.g., a catalytic cracking unit regeneration zone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.