6533b7d6fe1ef96bd1265beb
RESEARCH PRODUCT
Supercritical-fluid extraction of chlorofluoroalkanes from rigid polyurethane foams
Salvatore GambinoAlessandro GaliaGiuseppe SilvestriGiuseppe FilardoM. Poidomanisubject
chemistry.chemical_classificationMaterials scienceSupercritical carbon dioxideGeneral Chemical EngineeringExtraction (chemistry)Supercritical fluid extractionPolymerCondensed Matter PhysicsSupercritical fluidchemistry.chemical_compoundchemistryChemical engineeringScientific methodCarbon dioxideOrganic chemistryPhysical and Theoretical ChemistryPolyurethanedescription
Abstract Preliminary results about a process for recovering expanding agents chlorofluoroalkanes (CFCs) both trapped in the cavities and dissolved in the polymer from rigid polyurethane foams are reported. The performances of liquid and supercritical carbon dioxide, and of CO2-propane supercritical mixtures were compared. Better results in terms of extraction time and amount of extracted CFCs were obtained with finely ground materials and supercritical propane-carbon dioxide fluids.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1996-12-01 |