REDUCING THE QUINOLINE-INSOLUBKES CONTENT OF COAL TAR PITCH

REDUCING THE QUINOLINE-INSOLUBKES CONTENT OF COAL TAR PITCH

Quinoline-insoluble components are separated from coal tar pitch by treating the coal tar pitch which has a softening point of greater than 60 DEG C. (according to the method of Kraemer-Sarnow) with a solvent mixture comprising at least one solvent with paraffinic characteristics and at least one ta...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: GERD COLLIN, JURGEN STADELHOFER
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
FUELS
LUBRICANTS
METALLURGY
PEAT
PETROLEUM, GAS OR COKE INDUSTRIES
PYROLIGNEOUS ACID
TECHNICAL GASES CONTAINING CARBON MONOXIDE
WORKING-UP PITCH, ASPHALT, BITUMEN, TAR
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Beschreibung
Zusammenfassung:Quinoline-insoluble components are separated from coal tar pitch by treating the coal tar pitch which has a softening point of greater than 60 DEG C. (according to the method of Kraemer-Sarnow) with a solvent mixture comprising at least one solvent with paraffinic characteristics and at least one tar solvent, wherein the treatment is carried out at a temperature in the range of 200 DEG to 270 DEG C.