Environment-friendly coal tar pitch and preparation method thereof

摘要: The present invention relates to an environment-friendly coal tar pitch for road paving, and a preparation method thereof. According the invention, high-temperature by-produced in industry is adopted as main raw material dissolved with high-boiling point diluents, aliphatic aldehyde unsaturated carboxylic acid ester are used modifying agents so effectively reduce content of polycyclic aromatic hydrocarbons; benzo[alpha]pyrene significantly reduced through chemical method, process simple, equipment requirements low, large-scale production application easily achieved.