Method of removing ash components from high-ash coals
Patent
·
OSTI ID:6643420
A method of removing ash components from coals, particularly high-ash bituminous and sub-bituminous coals, comprises grinding the coals and suspending the ground coal in an aqueous media to form a raw suspension, fusing the raw suspension and without further additives stirring for 60 to 360 minutes at from 250 to 350/sup 0/C and at a pressure of from 50 to 80 atm. Thereupon, the fused suspension is cooled and the pressure thereof is relieved. The aqueous phase containing the dissolved ash components is separated from the coal.
- Assignee:
- Firma Carl Still Recklinghausen
- Patent Number(s):
- US 4098583
- OSTI ID:
- 6643420
- Resource Relation:
- Patent Priority Date: Priority date 19 Mar 1976, German, Federal Republic of (F.R. Germany)
- Country of Publication:
- United States
- Language:
- English
Similar Records
Method of removing ash components from high-ash content coals
Brown coal ash removal by the sink method
Chemical leaching of coal to remove ash, alkali and vanadium
Patent
·
Tue Jul 11 00:00:00 EDT 1978
·
OSTI ID:6643420
+1 more
Brown coal ash removal by the sink method
Technical Report
·
Thu Oct 26 00:00:00 EST 1939
·
OSTI ID:6643420
Chemical leaching of coal to remove ash, alkali and vanadium
Patent
·
Tue Apr 15 00:00:00 EST 1986
·
OSTI ID:6643420
+1 more