ACCELERATION OF THE THERMAL DECOMPOSITION OF BITUMEN

BLOWN BITUMEN WHICH HAS A HIGH SOFTENING POINT GENERALLY SHOWS NO CHEMICAL DECOMPOSITION WHEN HEAT TREATED AT ABOUT 100 C, BUT THERE IS A PROBLEM CONCERNING THE CHEMICAL STABILITY OF BITUMENS AT THIS TEMPERATURE WHEN TREATED WITH STEAM OR CARBON DIOXIDE. INVESTIGATIONS ON A POWDERED BLOWN BITUMEN SHOWED THAT WHEREAS THE LOW MOLECULAR WEIGHT HYDROCARBONS OF BITUMEN, WHICH HAS A HIGH SOFTENING POINT, ARE CHEMICALLY STABLE WHEN SUBJECTED TO MILD HEAT TREATMENT, HYDROCARBON COMPOUNDS OF BITUMEN WHICH HAVE A HIGH NUMBER OF CARBON ATOMS DECOMPOSE UNDER THE INFLUENCE OF CARBON DIOXIDE TO YIELD MAINLY HYDROCARBONS WITH A SMALL NUMBER OF CARBON ATOMS. WHEN TREATED WITH STEAM THE SAME HYDROCARBONS YIELD SATURATED AND UNSATURATED HYDROCARBONS WITH A SMALL NUMBER OF CARBON ATOMS.

  • Supplemental Notes:
    • Vol 212, No 5069, P 1459
  • Authors:
    • Loring, I
  • Publication Date: 1966-12-24

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  • Accession Number: 00210642
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Aug 30 1994 12:00AM