Kemerovo, Russian Federation
The paper analyses the products of thermal oxidation of grade B electrode pitch. The research presents the results of analysis of high-temperature pitch production by thermal oxidation of grade B electrode pitch in a reactor with a large gas space. The dependence of the softening temperature and volatile matter yields on the air flow rate for this type of thermal oxidation has been determined. During the experiment, the dependence of the carbonisate yield on the duration of thermal oxidation of grade B electrode pitch has been obtained. Carbonisation was conducted by heating the initial grade B electrode pitch and the pitches obtained by its thermal oxidation. The research establishes criteria for the special type of thermal oxidation to increase the category of coke and shows the results of carbonisation of a pitch-coke mixture containing various types of coke.
coal tar pitch, thermal oxidation, softening temperature, pitch yield, high-temperature pitch, binding pitch, pitch carbonatate, pitch-coke mixture
1. Utkin Y.A., Yanko E.A., Soloveichik E.Y., Strakhov V.M. Assessing coal pitch as a binder in anode production. Coke Chem., 2012, 55(9), 342-346. DOI:https://doi.org/10.3103/S1068364X12090098. EDN: https://elibrary.ru/RGFQOB
2. Sherryuble V.G., Seleznev A.N., Apalkova G.D. Viscoplastic properties of masses based on pitches with different softening point. Chemistry of Solid Fuel, 2003, 5, 17-21 (in Russian).
3. Yanko E.Ya. Investigation of quality of anode mass prepared on high-temperature pitches. Tsvetmet, 1981, 12, 73-76 (in Russian).
4. Itskov M.L., Svoboda R.V., Frolov V.I. Impact of softening temperature of binding materials on operational characteristics of anode mass. Tsvetmet, 1983, 12, 33-35 (in Russian).
5. Itskov M.L., Dyblina N.P., Denisenko V.I., Wegner A.A., Sergin E.I. About the impact of alpha-fraction of coal pitch on operational characteristics of anode mass. Tsvetmet, 1986, 8, 51-54 (in Russian).
6. Nazarenko N.A. Research of the quality of anodic mass prepared on high-temperature furnaces. Vestnik har'kovskogo nacional'nogo tekhnicheskogo universiteta HPI, 2011, 43, pp. 25-31 (in Russian).
7. Nevedrov A.V., Papin A.V., Bobrova I.V., Makarevich I.A. Research of the characteristics of samples used as a binder for the electrode industry. Vestnik Kuzbasskogo gosudarstvennogo tekhnicheskogo universiteta, 2025, 1, 94-101. (in Russian). DOI:https://doi.org/10.26730/1999-4125-2025-1-94-101. EDN: https://elibrary.ru/TNWNAL
8. Bazegsky A. E., Shkoller M. B. Research of the process of thermal dissolution of coal in order to obtain a binder for refractory masses. Message 1. Obtaining a binder. Izvestiya vysshih uchebnyh zavedenij. Chernaya metallurgiya, 2016, 59(8), 517-522 (in Russian). DOI:https://doi.org/10.17073/0368-0797-2016-8-517-522. EDN: https://elibrary.ru/WJBMWX
9. Mukhamedzyanova A.A., Khaybullin A.A., Panov I.I., Iskhanov I.A. Patent Ru. No. 2647735. Publ. 3/19/2018. (in Russian).
10. Frizorger V.K., Mann V.Kh., Anushenkov A.N., Khramenko N.A. Patent Ru. No. 2288938. Publ. 10/12/2006. (in Russian).
11. Lapina N.A., Starichenko N.S., Lane E.S., Ostrovsky V.S., Averina M.V., Lipkina N.V. AC. USSR. No 1772130. Publ. 30/10/1992. (In Russian).
12. Kovalev R.Yu. Comparative analysis of fractional composition of pitches obtained from coal tar depending on production technology. Bulletin of TvSU. Series: Chemistry, 2024, 4(58), 147-158. DOI:https://doi.org/10.26456/vtchem2024.4.15 (in Russian). EDN: https://elibrary.ru/JRBGYV
13. BarnakovC.N., Vershinin S.N., Khokhlova G.P., Usov O.M., Samarov A.P., Kozlov A.P. Benefits of ultrasound in pitch production from coal tar and its mixtures with styrene distillation residue. Coke Chem., 2016, 59(5), 192-195. DOI:https://doi.org/10.3103/S1068364X16050021. EDN: https://elibrary.ru/WVWGIF
14. Barnakov C.N., Vershinin S.N., Khokhlova G.P., Samarov A.P., Kozlov A.P. Production of coal pitch by the oxidation of coal extracts in anthracene. Coke Chem., 2016, 59(8), 313-315. DOI:https://doi.org/10.3103/S1068364X16080020. EDN: https://elibrary.ru/XFSIKF
15. Barnakov C.N., Khokhlova G.P., Usov O.M., Naymushina T.M. Pitch Production from Mixtures of Coal Tar and Rubber Crumbs. Coke Chem., 2018, 61(8), 305-307. DOI:https://doi.org/10.3103/S1068364X18080033. EDN: https://elibrary.ru/KAUOJP
16. Barnakov C.N., Khokhlova G.P., Usov O.M. New Materials for Binder-Pitch Production. Coke Chem., 2019, 62(10), 464-467. DOI:https://doi.org/10.3103/S1068364X1910003X. EDN: https://elibrary.ru/UTOKBW
17. Kovalev R.Yu., Nikitin A.P. Study of the Properties of Products of Low-Temperature Thermal Oxidation of Carbon Black Electrode Pitch. Trudy Kol'skogo nauchnogo centra RAN. Seriya: Tekhnicheskie nauki, 2025, 15 (1), pp. 221-227. DOI:https://doi.org/10.37614/2949-1215.2024.15.1.035. (in Russian). EDN: https://elibrary.ru/IOBWDE
18. Kovalev R. Yu. Impact of thermo-oxidation of electrode furnace on changes in its composition and properties. From hemistry Towards Technology Step-by-Step, 2025, 6(1), 55-64 (in Russian). DOI:https://doi.org/10.52957/2782-1900-2025-6-1-55-64. EDN: https://elibrary.ru/FCJQHL
19. Petrovykh A.P., Moskalev I.V., Kisel'kov D.M., Valcifer V.A., Strelnikov V.N. Analysis and comparison of properties of air-blown and of thermally treated pitches. Coke Chem., 2015, 58(1), 23-31. DOI:https://doi.org/10.3103/S1068364X1501007X. EDN: https://elibrary.ru/SFDTWJ
20. Kovalev R. Yu., Nikitin A. P. Study of the Products of Thermoxidative Treatment of Coal-Based Electrode Tar in a Reactor with a Large Gas Space. Koks i khimiya, 2025, 1, 19-24 (in Russian). DOI:https://doi.org/10.52351/00232815_2025_1_19. EDN: https://elibrary.ru/UZADPP
21. Kovalev R.Yu., Nikitin A.P. Investigation of the influence of thermal treatment of electrode pitches on carbonization product yields. Chemistry for Sustainable Development, 2024, 32, 839-844. DOI:https://doi.org/10.15372/KhUR2024 (in Russian). DOI: https://doi.org/10.15372/KhUR2024616; EDN: https://elibrary.ru/JENESY
22. Kovalev R. Yu. Carbonization of high-temperature pitches. Khimiya i himicheskaya tekhnologiya: dostizheniya i perspektivy: materialy I mezhdunarodnoj VII Vserossijskoj konferencii. Kemerovo: Kuzbass State Technical University named after T.F. Gorbachev, 2025, pp. 221.1-221.3. (in Russian).
23. Kovalev R. Yu., Nikitin A.P. Thermal Treatment of Carbon Black Electrode Tapes and Mixtures Based on Them. Vestnik Sibirskogo gosudarstvennogo industrial'nogo universiteta, 2025, 1(51), pp. 63-71. DOI:https://doi.org/10.57070/2304-4497-2025-1(51)-63-71 (in Russian). EDN: https://elibrary.ru/ZSTMAT
24. Kovalev R. Yu. Study of the heat treatment effect of medium-temperature electrode pitch on carbonisate yield. From Chemistry Towards Technology Step-by-Step, 2024, 5(4), 35-42. DOI:https://doi.org/10.52957/2782-1900-2024-5-4-35-42 (in Russian). EDN: https://elibrary.ru/POWJWC
25. Choi K.H., Lee S.Y., Hong I., Son S., An J.C., Kim S. Molecular-level investigation of coal-tar pitch treated by air blowing: Revealing the restructure of aromatic compounds via radical reactions. Carbon, 2023, 203, 377 385. DOI:https://doi.org/10.1016/j.carbon.2022.11.022. EDN: https://elibrary.ru/PKSECN
26. Kovalev R.Yu., Gavrilyuk O.M. Optimization of technology for obtaining high-temperature pitch,Innovacionny`j konvent "Kuzbass: obrazovanie, nauka, innovacii": Materialy` XII Innovacionnogo konventa. Kemerovo, Kemerovo State University, 2024. pp. 356-357.(in Russian).
27. Kovalev R. Yu., Naimushina T. M. Thermal Treatment of Electrode Tar. Materialy vo vneshnih polyah: trudy XIII Mezhdunarodnogo onlajn-simpoziuma, Novokuznetsk: Siberian State Industrial University, 2024, pp. 93-94 (in Russian).
28. Martın Y., Garcıa R., Keating P., Snape C.E., Moinelo S.R. A Study of the Polymerization and Condensation Reactions during the Heat Treatment of Pitches under Gas-Blowing Conditions, Energy Fuels, 2000, 14, 380 392. DOIhttps://doi.org/10.1021/ef9901443.
29. Sidorov O.F. Modern ideas about the process of thermal oxidation of coal pitch. 1. Mechanism of interaction of oxygen with hydrocarbons of pitch. Koks i Khimiya [Coke and Chemistry], 2002, 9, 35-43 (in Russian). EDN: https://elibrary.ru/MPNCJX
30. Sidorov O.F. Modern ideas about the process of thermal oxidation of coal pitch. Part 3. Impact of oxidation conditions on the character of thermochemical transformations and structure of pitch. Koks i Khimiya [Coke and Chemistry], 2004, 6, 24-30 (in Russian). EDN: https://elibrary.ru/HVRBPX
31. Gaisarov M.G., Maltsev L.D., Mochalov V.V. On the nature of the α1-fraction of pitch and its effect on the quality of carbonaceous products. Koks i himiya [Coke and chemistry]. 1981. Vol. 10, pp. 37-39 (in Russian).
32. Twigg A.N. Relationship between chemical structure and secondary quinoline insoluble for-mation in electrode binder pitches. Fuel, 1987, 66(11), 1540-1543. DOI: https://doi.org/10.1016/0016-2361(87)90015-9
33. Cao Y., Zang C., Zhang J., Gao F., Liu Y. High thermal-conductivity mesophase pitch-based graphite fiber with circular cross-section through a spinneret with a Y-shaped spinning hole. Carbon Trends, 2023, 10, 100244. DOI:https://doi.org/10.1016/j.cartre.2022.100244. EDN: https://elibrary.ru/EWTDIT
