It is well known that during a PUR glycolysis process, a solvolytic
agent reacts with polyurethane bonds and mainly polyol component (used for the foam preparation) is recovered (Fig.
Neoalkoxy titanates reportedly provide increased thermal and solvolytic
desulfation of glycosaminoglycan sulfates with dimethyl sulfoxide containing water or methanol.
One-stage upgrading processes such as liquefaction via solvolysis, high-pressure liquefaction, catalytic hydroliquefaction, hydrotreating, steam/water liquefaction, ironcatalysed pressurized aqueous pyrolysis, thermochemical solvolytic
processes at elevated temperature used to be mainly conducted in autoclave-type reactors.
This difficulty is further compounded by our inability to fully isolate or characterize, by solvolytic
or spectroscopic methods, lignin and ligninmatrix structures in cell walls.
Beside the different methods of recycling polymer, chemical recycling is mainly important and applied in the case of post consumer polycondensates, which are very susceptible to solvolytic