SUPERCRITICAL-FLUID EXTRACTION OF CHLOROFLUOROALKANES FROM RIGID POLYURETHANE FOAMS

Authors
FILARDO G GALIA A GAMBINO S SILVESTRI G POIDOMANI M
Citation
G. Filardo et al., SUPERCRITICAL-FLUID EXTRACTION OF CHLOROFLUOROALKANES FROM RIGID POLYURETHANE FOAMS, The Journal of supercritical fluids, 9(4), 1996, pp. 234-237
Citations number
3
Categorie Soggetti
Chemistry Physical","Engineering, Chemical
Journal title
The Journal of supercritical fluids → ACNP
ISSN journal
08968446
Volume
9
Issue
4
Year of publication
1996
Pages
234 - 237
Database
ISI
SICI code
0896-8446(1996)9:4<234:SEOCFR>2.0.ZU;2-I
Abstract
Preliminary results about a process for recovering expanding agents ch lorofluoroalkanes (CFCs) both trapped in the cavities and dissolved in the polymer from rigid polyurethane foams are reported. The performan ces of Liquid and supercritical carbon dioxide, and of CO2-propane sup ercritical mixtures were compared. Better results in terms of extracti on time and amount of extracted CFCs were obtained with finely ground materials and supercritical propane-carbon dioxide fluids.