Molecular composition of vanadyl porphyrins in the gilsonite
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Fuel Chemistry and Technology"
DOI: 10.1016/s1872-5813(20)30023-2
Abstract: Abstract A gilsonite from Qingchuan (Sichuan province, China) was separated into several fractions and characterized by various techniques. The vanadyl porphyrins were determined by inductively coupled plasma optical emission spectrometer, ultraviolet-visible spectrophotometry, high-temperature gas chromatography-atomic… read more here.
Keywords: molecular composition; chemistry; composition vanadyl; vanadyl ... See more keywords
Preparative-scale purification of petroleum vanadyl porphyrins by sulfuric acid loaded macroporous silica
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Porphyrins and Phthalocyanines"
DOI: 10.1142/s1088424619501979
Abstract: The practical potential of petroleum porphyrins still remains underestimated because of the absence of satisfactory simple and effective methods for their isolation in pure form. Our work aims to p... read more here.
Keywords: scale purification; preparative scale; petroleum vanadyl; purification petroleum ... See more keywords