METHOD OF OBTAINING A POLYMERIZABLE FRACTION OF RECYCLABLE MARTERIAL

摘要

The present invention relates to a method for recovering a useful polymerizable fragment consisting of styrene, methylstyrene, vinyltoluene, indene, methylindene, and fragments having a boiling point between styrene and methylindene from a cracking gas of a medium-term cracking machine. Characterized in that the column is divided into useful fractions by the distillation unit and fractions recycled to the cracking gas column.