Siberian Federal University

Issue

Journal of Siberian Federal University. Engineering & Technologies. 2016 9 (5)

Authors

Marakushina, Elena N.; Frizorger, Vladimir K.; Lazarev, Denis G.; Krak, Mikhail I.; Kuznetsov, Petr N.; Buryukin, Fedor A.

Contact information

Marakushina, Elena N.:«RUSAL ETC», LLC 37/1 Pogranichnikov Str., Krasnoyarsk, 660111, Russia; E-mail: Elena.Marakushina@rusal.com; Frizorger, Vladimir K.:«RUSAL ETC», LLC 37/1 Pogranichnikov Str., Krasnoyarsk, 660111, Russia; Lazarev, Denis G.:«RUSAL ETC», LLC 37/1 Pogranichnikov Str., Krasnoyarsk, 660111, Russia; Krak, Mikhail I.:«RUSAL ETC», LLC 37/1 Pogranichnikov Str., Krasnoyarsk, 660111, Russia; Kuznetsov, Petr N.:Institute of Chemistry and Chemical Technology of SB RAS 50/24 Academgorodok, Krasnoyarsk, 660036, Russia; Buryukin, Fedor A.:Siberian Federal University 79 Svobodny, Krasnoyarsk, 660041, Russia

Keywords

Coal tar pitch; coal extraction; mechanoactivation; coal destruction; coal conversion; carbon nanomaterials; anode mass

Abstract

Aluminium smelting industry is the biggest consumer of coal tar pitch, but the use of pitch causes numerous problems because of some economic and environmental factors. Russia’s growing deficit is covered by import deliveries, which cannot guarantee a secure future. At the same time stricter environmental sanctions related to the use of coal tar pitch as a source of cancer-inducing emissions, are supporting the search for alternative raw materials and the development of new pitch binder production techniques. Given that the known reserves of bituminous coal will be sufficient to last for 230 years at the current production rates as opposed to the oil reserves that will be enough for 40 years only, it becomes obvious that the development of a pitch binder production technique based on thermochemical processing of coals is a promising direction to follow. Investigations were carried out to dissolve coals thermo-chemically in various organic solvents at varying levels of temperature, pressure, and reaction times. It was shown how mechanic activation and ultrasonic exposure affect the degree of organic coal mass extraction. The methods of vacuum and atmospheric distillation were used to produce pitch products from coal extracts. It was demonstrated that the use of coking additives, including nano-modified carbon, helps improve the application properties of pitch products. Large-sized samples of coal tar pitch were used to produce trial lots of anode paste for Soederberg anodes

Pages

714-723

Paper at repository of SibFU

https://elib.sfu-kras.ru/handle/2311/20557

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0).