Process for producing a high concentration coal-water slurry
US4747548A · kind A · utility
1Cited by
6References
53Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 17, 1986 |
| Grant date | May 31, 1988 |
| Priority date | — |
| Expiry date | Nov 17, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10L1/326
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for producing a coal-water slurry having a low viscosity and a good stability even in a high coal concentration without increase in the production cost is provided, which process is characterized in that when coal is fed to a wet mill and milled therein, the coal feed is divided in a multi-stage manner, also in that two coals of different grindabilities are milled together.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.