Method of producing cement
US4289537A · kind A · utility
1Cited by
1References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 6, 1980 |
| Grant date | Sep 15, 1981 |
| Priority date | — |
| Expiry date | Mar 6, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B7/46
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Tricalcium silicate materials useful in the production of Portland and other cements are prepared by melting a mixture of materials comprising basically line and silica in an electric furnace. The voltage between the electrodes and the conductivity of the melt are controlled so that a predetermined separation will be maintained between the lower end of the carbon electrode and the melt.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.