PROCESS FOR RECYCLING POLYETHYLENE TEREPHTHALATE USING POROUS PARTICULATED FILTER MATERIAL

Abstract: one aspect is a method for producing a first intermediate product. a feedstock is provided that comprises a first polyester. the first polyester is contacted with a further organic compound in a volume section vto obtain a further initial mixture. a weight average molar mass of the first polyester is reduced in the volume section vto obtain a first intermediate mixture. the first intermediate mixture comprises a first intermediate product and the further organic compound. first particulated material is added to the first intermediate mixture in a volume section v. a filtering means is pre-coated with the first particulated material. at least one impurity is at least partially removed from the first intermediate mixture using the filtering means. the first particulated material has a median pore diameter in the range of 5 mm to 20 mm.

Inventor(s): Suresh L. MAKHIJA, Dhanvant YEOLA, Christian NEUMANN

CPC Classification: C08J11/24 (containing hydroxyl groups)

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