Abstract: The present invention relates to a method for recovering at least one raw material from a polyurethane product, comprising steps (A) providing a polyurethane product based on an isocyanate component and a polyol component, the isocyanate component comprising only isocyanates for which the corresponding amines have a boiling point at 1013 mbar(abs.) of at most 410° C.; (B) performing chemolysis of the polyurethane product with an alcohol and water; (C) processing the product of the chemolysis, comprising (C.I) extraction with an organic solvent, the boiling point of which at 1013 mbar(abs.) is in the range of 40° C. to 120° C., at a temperature in the range of 10° C. to 60° C., followed by (C.II) phase separation into a first product phase and into a second product phase; and (D) processing the first product phase to obtain the polyol, comprising (D.I.) separation of organic solvent by distillation and/or stripping, and (D.

Abstract: The present invention relates to a method for recovering raw materials (i.e. of polyols and optionally additionally amines) from polyurethane foams, comprising chemolysis. The chemolysis is characterised in that a polyurethane foam is reacted with an alcohol and water in the presence of a catalyst at a temperature of between 130° C. and 195° C., the mass ratio of (total) alcohol and (total) water to the polyurethane foam [i.e. m(alcohol+water)/m(polyurethane foam), where “m”=mass] being between 0.5 and 2.5, and the mass of the water being between 4.0% and 10% of the mass of the alcohol. The catalyst comprises a metal salt selected from a carbonate, a hydrogen carbonate, an orthophosphate, a monohydrogen orthophosphate, a metaphosphate or a mixture of two or more of said metal salts.