Alcohol/heavy liquid drying of coal
US4498246A · kind A · utility
5Cited by
3References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 22, 1983 |
| Grant date | Feb 12, 1985 |
| Priority date | — |
| Expiry date | Sep 22, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB03B5/442
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Water content of coal is reduced during heavy liquid/ash separation processes by adding an alcohol containing from 1 to 3 carbon atoms to the heavy liquid. These alcohols are miscible with both the heavy liquid and with the water and provide a continuous phase for water removal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.