Abstract In this work, variations of heavy oil asphaltenes’ oxidation reactions under different conditions were investigated. By IR spectroscopy was shown a predominant destruction of occluded and adsorbed compounds in asphaltenes when using KIO3 and NaIO4 as oxidizing agents. In the case of CH3COOH/H2O2 and KMnO4 was determined the destruction of asphaltenes supermolecules with a formation of carboxyl groups. EPR spectroscopy demonstrated decrease of content of vanadyl complexes spin per gram of oxygenates 0.5–2 times in comparison with initial asphaltenes, which indicates the separation of occluded metalloporphyrins. Content of free stable radicals in high molecular products increased in 2–4 times.

中文翻译：

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用EPR和IR光谱研究重油沥青质氧化产物组成

摘要 本文研究了不同条件下稠油沥青质氧化反应的变化规律。红外光谱表明，当使用 KIO3 和 NaIO4 作为氧化剂时，主要破坏沥青质中被吸留和吸附的化合物。在 CH3COOH/H2O2 和 KMnO4 的情况下，确定了沥青质超分子的破坏，形成了羧基。EPR 光谱表明，与初始沥青质相比，每克含氧化合物自旋的氧钒配合物含量降低了 0.5-2 倍，这表明吸留金属卟啉的分离。高分子产品中稳定自由基的含量增加了2-4倍。