OBTAINING OF PETROLEUM RESINS USING PYROLYSIS BY-PRODUCTS 12. PETROLEUM RESINS WITH HYDROXYL GROUPS OTRZYMYWANIE ¯YWIC PETROCHEMICZNYCH

Summary: The C9 fraction, which is one of the by-products from pyrolysis of gasoline or diesel oil, was used as raw material for producing petroleum resins with hydroxyl end-groups (PRHs). Cooligomerization of unsaturated products present in C9 fraction was initiated by 2,2’-azo-bis-(5-hydroxy-2-methylpentanonitrile). The amount of the initiator was 0.50–15.0 mass % relative to raw material. The influence of temperature, process time and the initiator amount on yield and main characteristics of PRHs was examined. The characteristics of synthesized PRHs were verified with chemical and IR-spectroscopic methods. The hydrocarbon composition of wastes from PRHs production was examined and some ways of utilization of the wastes were suggested