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.

La actual invención se relaciona con un método para recuperar los monomers del estireno de las resinas del poliestireno usando el sulfato como catalizador. La actual invención hace posible descomponer termal las resinas del poliestireno en las temperaturas comparativamente bajas, y reducir costes de la facilidad, el etc., y también hace posible recuperar el aceite que contiene menos cociente de componentes bajos del peso molecular y de un alto contenido de los monomers del estireno de los vapores obtenidos con la descomposición termal del poliestireno.

 
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< Combined polystyrene and polyurethane vacuum insulating panel and the use thereof for producing insulating elements

< Oil gel formulations containing polystyrene-polydimethylsiloxane or polyethylene-polydimethylsiloxane block copolymers dissolved in siloxane monomers

> Flame-proofed polystyrene foamed materials

> Brominated polystyrene having improved thermal stability and color and process for the preparation thereof

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