Portland cement-making and municipal refuse conversion
US4022630A · kind A · utility
19Cited by
1References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 9, 1976 |
| Grant date | May 10, 1977 |
| Priority date | — |
| Expiry date | Feb 9, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P40/10
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The invention provides a method of incinerating municipal refuse by burning it in a pulverized condition in a rotary kiln with added basic mineral matter, especially Portland cement raw materials, at a temperature sufficient to burn off all combustibles. A stony aggregate is obtained, which in a preferred embodiment is clinker, the rotary kiln being part of a cement plant. Conventional fuel may also be used for firing along with the refuse.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.