Solvent based recycling process of polyolefins
AssigneeBorealis AG
InventorsMohammad AL-HAJ ALI, Noureddine AJELLAL, Mubashar SATTAR, Erno ELOVAINIO, Henry SLEIJSTER
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AssigneeBorealis AG
InventorsMohammad AL-HAJ ALI, Noureddine AJELLAL, Mubashar SATTAR, Erno ELOVAINIO, Henry SLEIJSTER
Estimating the term…
A solvent based recycling process for recycling waste polymer material, the waste polymer material comprising at least one polyolefin, the process comprising the steps of obtaining the waste polymer material comprising the at least one polyolefin; contacting the waste polymer material with at least one dissolving solvent yielding a slurry stream of polymer solution and undissolved solids; screening the slurry stream yielding the undissolved solids and a stream of the polymer solution; vapor-liquid separating the stream of the polymer solution into a polymer-lean vapor stream and a polymer-rich condensed stream; recovering the at least one polyolefin from the polymer-rich condensed stream; wherein the at least one dissolving solvent has a boiling point temperature at 1 bar of equal to or more than 70° C.
A solvent-based recycling process for recycling waste polymer material (1), the waste polymer material (1) comprising at least one polyolefin (2), the process comprising the steps of
Dependencies are inferred from the claim text.