Total Research & Technology Feluy

Totalenergies Onetech Belgium

Thierry Marcoux

Martine Slawinski

Armelle Sigwald

Laetitia Urbanczyk

Serge Eon

Pascal Charlier

Antonio Guinovart

Matthieu Adam-Berret

Jose-Maria Pere

Elodie Perche

José-Maria Pere

The invention relates to a process and an installation to produce a monovinylaromatic polymer (3) comprising post-consumer recycled polystyrene (PCR-PS) wherein the process comprises the steps of mixing the PCR-PS (5) and the monovinylaromatic monomer (7) within a dissolver (9) to dissolve the PCR-PS (5) in the monovinylaromatic monomer (7) so as to produce a polymerization mixture (13); and a step of filtering the polymerization mixture (13) that includes continuously redirecting at least a part of the stream of the filtered polymerization mixture (17) back to the dissolver (9) and mixing it with the polymerization mixture (13) so as to continuously reduce the content of insoluble material in the polymerization mixture (13) contained in the dissolver (9).

Process for producing monovinylaromatic polymer incorporating post-consumer recycled polystyrene, monovinylaromatic polymer incorporating post-consumer recycled polystyrene and articles produced thereof

The invention relates to a process and an installation to produce a monovinylaromatic polymer () comprising post-consumer recycled polystyrene (PCR-PS) wherein the process comprises the steps of mixing the PCR-PS () and the monovinylaromatic monomer () within a dissolver () to dissolve the PCR-PS () in the monovinylaromatic monomer () so as to produce a polymerization mixture (); and a step of filtering the polymerization mixture () that includes continuously redirecting at least a part of the stream of the filtered polymerization mixture () back to the dissolver () and mixing it with the polymerization mixture () so as to continuously reduce the content of insoluble material in the polymerization mixture () contained in the dissolver ().

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Casteau, Belgium

Thierry Marcoux