Chemical comminution and deashing of low-rank coals
Patent
·
OSTI ID:1176650
A method of chemically comminuting a low-rank coal while at the same time increasing the heating value of the coal. A strong alkali solution is added to a low-rank coal to solubilize the carbonaceous portion of the coal, leaving behind the noncarbonaceous mineral matter portion. The solubilized coal is precipitated from solution by a multivalent cation, preferably calcium.
- Research Organization:
- Idaho National Laboratory (INL), Idaho Falls, ID (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC07-78ID01570
- Assignee:
- The United States of America as represented by the United States Department of Energy (Washington, DC)
- Patent Number(s):
- H001118
- Application Number:
- 07/412716
- OSTI ID:
- 1176650
- Resource Relation:
- Patent File Date: 1989 Sep 26
- Country of Publication:
- United States
- Language:
- English
The influence of pH on biological solubulization of oxidized, low-rank coal
|
journal | August 1988 |
Evidence that microbially produced alkaline materials are involved in coal biosolubilization
|
journal | January 1989 |
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