SUPERCRITICAL-FLUID EXTRACTION OF FLAME R ETARDANTS IN LOW-DENSITY POLYETHYLENE

Authors
THIRION B TERMONIA M
Citation
B. Thirion et M. Termonia, SUPERCRITICAL-FLUID EXTRACTION OF FLAME R ETARDANTS IN LOW-DENSITY POLYETHYLENE, Analusis, 22(9), 1994, pp. 468-470
Citations number
9
Categorie Soggetti
Chemistry Analytical
Journal title
Analusis → ACNP
ISSN journal
03654877
Volume
22
Issue
9
Year of publication
1994
Pages
468 - 470
Database
ISI
SICI code
0365-4877(1994)22:9<468:SEOFRE>2.0.ZU;2-G
Abstract
The extraction of brominated flame retardants (decabromobiphenyl, DBB and decabromobiphenyl oxide, DBBO) in low density polyethylene (LDPE) was performed by carbon dioxide in the supercritical phase (SFE). The effect of temperature, pressure and of modifier addition on the extrac tion yield were studied. The highest extraction yields are obtained at a temperature of 55-degrees-C and a pressure of 30 MPa, by means of a 30 min static extraction followed by a 45 min dynamic extraction.