EP 0120499 A2 19841003 - Method for the removal of iron pyrites from coal and carbon structures during ash removal by chemical means.
Title (en)
Method for the removal of iron pyrites from coal and carbon structures during ash removal by chemical means.
Title (de)
Verfahren zur Entfernung von Eisenpyrit aus Kohlen und Kohlestrukturen während der chemischen Aschenentfernung.
Title (fr)
Procédé pour l'élimination de pyrite de fer du charbon ou des structures de charbon pendant l'élimination chimique de la cendre.
Publication
Application
Priority
AU 864883 A 19830328
Abstract (en)
The invention relates to a method for the removal of iron pyrites from coal and carbon structures during ash removal by chemical means. The method includes crushing raw coals to a proper particle size, leaching said crushed coals with hydrofluoric acid, and separating said leached solids.
IPC 1-7
IPC 8 full level
C10L 9/02 (2006.01)
CPC (source: EP)
C10L 9/02 (2013.01)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0120499 A2 19841003; EP 0120499 A3 19851002; AU 2620084 A 19841004
DOCDB simple family (application)
EP 84103390 A 19840327; AU 2620084 A 19830328