Process for rendering an ash inert, artificial pozzolana obtained by means of the said process
US7128006B2 · kind B2 · utility
1Cited by
4References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 29, 2005 |
| Grant date | Oct 31, 2006 |
| Priority date | — |
| Expiry date | Apr 29, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/91
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Process for rendering inert an ash originating from the incineration of municipal waste, according to which the ash is subjected successively to treatment (19) with a water-soluble phosphate (20) in the presence of water, under conditions adjusted to crystallize hydroxyapatite and/or whitlockite, and to calcination (22). Artificial pozzolana, obtained by subjecting an ash originating from the incineration of municipal waste to such an inerting process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.