Covestro Deutschland Ag

Recticel Engineered Foams Belgium

Katharina Ander

Torsten Heinemann

Sascha Froebel

Robert Grimm

Joke De Geeter

Jan Willems

Franz Siegl

Isabel Verlent

The invention relates to a method for separating waste polyurethane foams, wherein for each polyurethane sample () of a supply stream () comprising polyurethane samples () from waste at least one respective spectrum () is recorded, wherein the at least one respective spectrum () is recorded by near-infrared spectroscopy, wherein each polyurethane sample () of the supply stream () is classified by a classification algorithm (), which classification algorithm () is based on machine learning, based on the respective at least one spectrum () into a respective class (-) of at least two classes (-), wherein the supply stream () comprising polyurethane samples () is separated into at least two streams (-) according to the classification into the respective class (-) and wherein each class (-) corresponds to a type of polyurethane. The invention also relates to a system for separating waste polyurethane foams.

Method and system for separating waste polyurethane foams

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Graz, Austria

Katharina Ander