Method of curing a gypsum calcination product
US10183890B2 · kind B2 · utility
1Cited by
2References
15Claims
0Family size
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Inventor
Key dates
| Filing date | Jan 8, 2015 |
| Grant date | Jan 22, 2019 |
| Priority date | — |
| Expiry date | Jun 2, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B11/06
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method of conditioning stucco comprises the steps of supplying a quantity of stucco particles to a reaction vessel, the stucco particles comprising calcium sulphate hemihydrate and/or calcium sulphate anhydrite, as well as calcium sulphate dihydrate; and conditioning the stucco particles at a temperature of at least 100° C. and a humidity of at least 70%. During the step of conditioning the stucco particles, the bulk density of the stucco particles within the reaction vessel is at least 1 g/cm3.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.