Process for removing flyslag from gas
US4857077A · kind A · utility
9Cited by
10References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 22, 1986 |
| Grant date | Aug 15, 1989 |
| Priority date | — |
| Expiry date | Dec 22, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/91
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for the treatment of flyslag from the gasification of coal is described, the process being characterized, in one embodiment, by mixing of the flyslag with a cementitious material, a composition capable of converting sulfides in the flyslag at least to sulfur, and an aqueous waste stream from the gasification of coal, in specified proportions. A composition comprising flyslag, a cementitious material, and a composition capable of converting sulfides in the flyslag at least to sulfur, is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.