Process for producing a coal-water slurry
US4613084A · kind A · utility
12Cited by
7References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 27, 1984 |
| Grant date | Sep 23, 1986 |
| Priority date | — |
| Expiry date | Jun 27, 2004 |
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 high coal concentration (generally 60 to 80% by weight or more) and a lower viscosity, at a lower cost and with a smaller amount of dispersing agent added is provided, which process is directed to a process for producing a high concentration coal-water slurry by feeding coal, water and a dispersing agent into a wet, continuous ball mill and wet-milling them, characterized by feeding the dispersing agent in a multi-stage manner along the milling direction of coal within the ball mill.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.