The primary industrial solid
carbonization product obtained from
coal tar pitch mainly produced in chamber or
delayed coking processes.
Note:
Coal-derived
pitchcoke, although it exhibits a pregraphitic microstructure, has often a lower graphitizability
than
petroleum coke. Fractions of coal tar pitches (obtained by
extraction or
filtration) may form
cokes with needle-like structures and have an improved graphitizability. The usually lower
graphitizability compared to
petroleum coke is due to an
inhibition of
mesophase growth because of chemical and physical differences of the cokes.
Source:
PAC, 1995, 67, 473
(Recommended terminology for the description of carbon as a solid (IUPAC Recommendations
1995))
on page 485
Cite as:
IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by
A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997).
XML on-line corrected version: http://goldbook.iupac.org (2006-) created by M. Nic,
J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8.
https://doi.org/10.1351/goldbook.
