From Chemistry Towards Technology Step-By-Step From Chemistry Towards Technology Step-By-Step От химии к технологии шаг за шагом 2782-1900 100493 10.52957/2782-1900-2025-6-2-153-161 Научные статьи Scientific articles Научные статьи Properties of semi-coking tar pitches Properties of semi-coking tar pitches Ковалев Родион Юрьевич Kovalev Rodion Yuryevich kovaleviuhm@yandex.ru

кандидат физико-математических наук;

candidate of physical and mathematical sciences;

 Никитин Андрей Павлович Nikitin Andrey Pavlovich

кандидат физико-математических наук;

candidate of physical and mathematical sciences;

 Федеральный исследовательский центр угля и углехимии СО РАН Россия The Federal Research Center of Coal and Coal-Chemistry of Siberian Branch of the Russian Academy of Sciences Russian Federation Федеральный исследовательский центр угля и углехимии СО РАН Кемерово Россия The Federal Research Center of Coal and Coal-Chemistry of Siberian Branch of the Russian Academy of Sciences Kemerovo Russian Federation 29 06 2025 29 06 2025 6 2 153 161 23 10 2024 10 06 2025 https://chemintech.ru/en/nauka/article/100493/view

This paper compares previously produced pitches derived from medium-rank coal semi-coking tars. The study considers methods for obtaining semi-coking tars in different atmospheres. We measured pitch softening temperatures and compared how these values depend on both the original coal grade and tar extraction technology. We produced pitch by extracting tar from Zh-grade coal processed in an inert atmosphere. The carbonization experiments compared semi-coking tar pitch with grade B electrode pitch.

This paper compares previously produced pitches derived from medium-rank coal semi-coking tars. The study considers methods for obtaining semi-coking tars in different atmospheres. We measured pitch softening temperatures and compared how these values depend on both the original coal grade and tar extraction technology. We produced pitch by extracting tar from Zh-grade coal processed in an inert atmosphere. The carbonization experiments compared semi-coking tar pitch with grade B electrode pitch.

 distillation toluene extraction fractional composition phenols The work was performed within the framework of the state assignment of ‘Federal Research Centre of Coal and Coal Chemistry of the Siberian Branch of the Russian Academy of Sciences’ project No. 121031500512-7.

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