ISSN 0862-5468 (Print), ISSN 1804-5847 (online) 

Ceramics-Silikáty 39, (3) 99 - 104 (1995)


CARBONIZATION OF COAL-TAR PITCH DEHYDROGENATED BY SULPHUR
 
Kolář František, Svítilová Jaroslava, Balík Karel
 
Institute of Rock Structure and Mechanics, Academy of Sciences of Czech Republic, V Holešovičkách 41, 182 09 Prague

Dehydrogenation of coal-tar pitch with sulphur influences the behaviour of pitch in subsequent carbonization. The carbon yield gets up and chemorheological property changes. Conditions for mesophase formulation are worse because of an increasing viscosity. In extreme case the solidification is done during the dehydrogenation by sulphur. We can control anisotropy and mechanical properties of carbonizates whereby sulphur modification of pitch.


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