Coal treatment method and product produced therefrom
US4543104A · kind A · utility
7Cited by
21References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 30, 1984 |
| Grant date | Sep 24, 1985 |
| Priority date | — |
| Expiry date | Oct 30, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10L9/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Disclosed herein is a method for treating raw coal with ozone in aqueous suspension to modify the surface of the coal particle and release the ash constituents thereby permitting a more thorough separation of coal from ash by conventional means. The process also provides a mixture which is easily dewatered.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.