Stabilization of calcium oxide sulfate trapping materials
US4061593A · kind A · utility
3Cited by
3References
3Claims
0Family size
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Inventor
Key dates
| Filing date | Jan 26, 1977 |
| Grant date | Dec 6, 1977 |
| Priority date | — |
| Expiry date | Jan 26, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01F11/464
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Sulfate absorbent calcium hydroxide is dispersed in a binder and pelletized. The pellets are exposed to carbon dioxide at elevated temperatures to convert at least a portion of the calcium hydroxide to calcium carbonate. Pellets so treated are suitable for prolonged use in fixed volume sulfur oxide and sulfate scrubber vessels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.