Process for obtaining a building material comprising hydrated lime and plaster
US3945841A · kind A · utility
5Cited by
4References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 29, 1973 |
| Grant date | Mar 23, 1976 |
| Priority date | — |
| Expiry date | May 29, 1993 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B11/02
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Natural or synthetic gypsum is reacted with quicklime in any desired proportions, the heat needed for the complete conversion of gypsum in plaster being supplied, on the one hand, by the exothermic reaction of hydration of the quicklime and, on the other hand, by an external supply of calories obtained by indirect heating of the reaction mixture. This indirect heating may be effected by convection and conduction or by radiation from a metallic wall.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.