Process for utilizing mineral-containing residue from coal liquefaction processes
US4249951A · kind A · utility
5Cited by
1References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 7, 1979 |
| Grant date | Feb 10, 1981 |
| Priority date | — |
| Expiry date | Sep 7, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P40/125
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process for utilizing mineral-containing residue from coal liquefaction processes to produce a hydraulic cement. The residue is mixed with siliceous and calcareous matereals and compacted. The compacted solids are introduced into a kiln and fired to produce hydraulic cement clinker. The primary fuel for the clinker production is contained in the residue. The clinker is removed from the kiln and ground to produce cement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.