Method of processing waste materials
US4741776A · kind A · utility
24Cited by
11References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 30, 1985 |
| Grant date | May 3, 1988 |
| Priority date | — |
| Expiry date | Jul 30, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S423/02
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method of processing waste material comprises treating the material with flue dust and bonding it to form a solid mass with cement powder, e.g. Portland cement. Acidic liquors containing heavy metals can be processed. Suitable flue dust is obtained from cement manufacture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.