Recycling reactors for rigid PU foam residues

The H&S technology for the recycling of rigid PU foam residues based on the glycolysis method, in which PU residues are dissolved in a mixture of glycol and catalysts. The outstanding feature of the H&S method is that the recovered polyols compared to the previously known glycolysis technologies contain the quantity of hazardous, primary aromatic amines below statutory provisions. This is achieved with a deamination phase.