Abstract
Asphaltenes and resins from petroleum vacuum residue were shown to be the promising raw materials for obtaining pure vanadyl porphyrins. Vanadyl porphyrins are recovered from petroleum objects via the extraction of dimethyl formamide (DMFA) followed by purification on a chromatographic column using silica gel and sulfocationite. The composition of the obtained vanadyl porphyrins was studied by means of mass spectrometry with matrix assisted laser desorption/ionization (MALDI) and high performance liquid chromatography (HPLC). Thus obtained metalloporphyrins can be used as a basis to create catalysts for various chemical processes, which may serve as an alternative to their synthesis.
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