Production of Bitumen Modified with Low-Molecular Organic Compounds from Petroleum Residues. 7. Study of the Structure of Formaldehyde Modified Tars
Date
2023-02-28
Journal Title
Journal ISSN
Volume Title
Publisher
Видавництво Львівської політехніки
Lviv Politechnic Publishing House
Lviv Politechnic Publishing House
Abstract
Хімічним модифікуванням гудрону формальдегідом з використанням як каталізатора сульфатної кислоти отримано три зразки бітумного матеріалу з різними температурами розм’якшення 321, 332 і 356,4 К. Визначено груповий вуглеводневий склад сировини процесу модифікації (гудрону) та отриманих бітумів. Також здійснено FTIR-дослідження одержаних груп вуглеводнів (олив, смол та асфальтенів). Досліджено структурні перетворення та запропоновано можливий хімізм процесу модифікування гудрону формальдегідом.
Three samples of bituminous material with different softening temperatures of 321, 332, and 356.4 K were obtained by the method of chemical modification of tar with formaldehyde using sulfuric acid as a catalyst. The determination of the group hydrocarbon composition was carried out for the raw materials of the modification process (tar) and the resulting bitumens. An FTIR study of the obtained groups of hydrocarbons (oil, resins, and asphaltenes) was also carried out. The structural transfor¬mations were investigated and a possible chemistry of the tar modification process with formaldehyde was proposed.
Three samples of bituminous material with different softening temperatures of 321, 332, and 356.4 K were obtained by the method of chemical modification of tar with formaldehyde using sulfuric acid as a catalyst. The determination of the group hydrocarbon composition was carried out for the raw materials of the modification process (tar) and the resulting bitumens. An FTIR study of the obtained groups of hydrocarbons (oil, resins, and asphaltenes) was also carried out. The structural transfor¬mations were investigated and a possible chemistry of the tar modification process with formaldehyde was proposed.
Description
Keywords
гудрон, бітум, формальдегід, хімічне модифікування, tar, bitumen, formaldehyde, chemical modification
Citation
Production of Bitumen Modified with Low-Molecular Organic Compounds from Petroleum Residues. 7. Study of the Structure of Formaldehyde Modified Tars / Volodymyr Gunka, Yurii Hrynchuk, Yuriy Demchuk, Myroslava Donchenko, Yuriy Prysiazhnyi, Volodymyr Reutskyy, Olena Astakhova // Chemistry & Chemical Technology. — Lviv : Lviv Politechnic Publishing House, 2023. — Vol 17. — No 1. — P. 211–220.