EP 0016624 B1 19830525 - COAL DE-ASHING PROCESS
Title (en)
COAL DE-ASHING PROCESS
Publication
Application
Priority
- AU PD806279 A 19790316
- AU PD878679 A 19790511
- AU PD966979 A 19790723
Abstract (en)
[origin: EP0016624A1] Valuable minerals or carbonacious fuels are often not recoverable due to large quantites of presently inseparable undesirable substances. Silica, alumina, sulphur compounds and iron oxides often comprise the unwanted substances. There is thus provided a process for removal of these substances by the use of hydrogen fluoride wherein substantial amounts of the hydrogen fluoride may be recovered for recycle to make the process viable.
IPC 1-7
IPC 8 full level
C10L 9/02 (2006.01); C22B 1/02 (2006.01); C22B 11/00 (2006.01)
CPC (source: EP)
C10L 9/02 (2013.01); C22B 1/02 (2013.01); C22B 11/00 (2013.01)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LU NL SE
DOCDB simple family (publication)
EP 0016624 A1 19801001; EP 0016624 B1 19830525; AR 221757 A1 19810313; AU 5623680 A 19800918; DE 3063417 D1 19830707; JP S55133487 A 19801017; ZA 801403 B 19810930
DOCDB simple family (application)
EP 80300800 A 19800314; AR 28031780 A 19800314; AU 5623680 A 19790316; DE 3063417 T 19800314; JP 3383180 A 19800317; ZA 801403 A 19800311