Getting asphaltols from petroleum resids
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It is shown that upon irradiation, asphaltites are oxidized with formation of carboxyl, carbonyl, ester, and phenol groups. Asphaltols – derivatives of asphaltites that contain essentially phenol groups, which are highly radiation-resistant, are formed when asphaltites are exposed to a fixed radiation dose and the reaction occurs in an acidic or alkaline medium. It was found that asphaltols are inhibitors of oxidation of hydrocarbon (petroleum) oils. Polyfunctional cation exchangers are obtained by introducing sulfo (sulfonic-acid) groups into asphaltols.
Key wordsasphaltites radiative oxidation of asphaltites asphaltols phenol groups
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