Biological method for coal comminution
US5490634A · kind A · utility
26Cited by
6References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 10, 1993 |
| Grant date | Feb 13, 1996 |
| Priority date | — |
| Expiry date | Feb 10, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10L9/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method for reducing the size of coal particles includes the steps of inoculating a coal sample with an anaerobic bacteria or decarboxylating enzyme therefrom and incubating the inoculated sample. The microbes and/or decarboxylating enzymes biochemically modify the coal to reduce the size of the coal to ultra-fine particles. The biotreatment modifies the coal so as to improve its dispersibility in coal-water slurries.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.