| abstract |
(57) [Summary] [Object] To provide a method for continuously, economically and efficiently producing a highly pure styrene monomer from a styrene resin. [Structure] 0.1 to 0.5 parts by weight of a polymerization inhibitor is added to 100 parts by weight of a styrene resin, heated and stirred to cause a depolymerization reaction to distill a crude styrene monomer and to partially condense it. High-purity styrene monomer is obtained through the vessel. |