论文信息 - THE EFFECT OF METALLOPORPHYRINS ON ASPHALT OXIDATION. I. EFFECT OF SYNTHETIC METAL CHELATES

THE EFFECT OF METALLOPORPHYRINS ON ASPHALT OXIDATION. I. EFFECT OF SYNTHETIC METAL CHELATES

ABSTRACT Two different asphalts were coated on a Fluoropak support and were oxidized at 130 ± 2°C for 24 hours using a number of metal chelales as additives. After oxidation the recovered asphalts were analyzed by infrared spectrometry to determine enhancements of keto, acid, and anhydride functions. Vanadyl etioporphyrin I was found to be an effective promoter in the oxidation of both asphalts. Vanadyl porphyrins having bulky ring substituents are not as effective as vanadyl etioporphyrin I in promoting asphalt oxidations.

J. C. Petersen | J. F. Branthaver | S. M. Dorrence | M. Nazir

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