Method for recovering styrene monomer from polystyrene resin using catalyst

Application Number: 00108077
Application Date: 2000.06.12
Publication Number: 1311180
Publication Date: 2001.09.05
Priority Information: 2000/4/6 JP 2000-105518; 2000/3/1 JP 2000-55832
International: C07C4/22;C07C15/46
Applicant(s) Name: Taiyo Development Co., Ltd.
Inventor(s) Name: Sato Takumi;Masunari Teruo
Patent Agency Code: 72003
Patent Agent: yang shuyuan
Abstract The present invention relates to a method for recovering styrene monomers from polystyrene resins by using sulfate as a catalyst. The present invention makes possible to thermally decompose polystyrene resins at comparatively low temperatures, and to reduce facility costs, etc., and also makes possible to recover oil containing less ratio of low molecular weight components and a high content of styrene monomers from vapors obtained through thermal decomposition of polystyrene.