(19)
(11) EP 1 436 241 A1

(12)

(43) Date of publication:
14.07.2004 Bulletin 2004/29

(21) Application number: 02761394.2

(22) Date of filing: 15.08.2002
(51) International Patent Classification (IPC)7C07C 7/04, C07C 1/20
(86) International application number:
PCT/US2002/026119
(87) International publication number:
WO 2003/020672 (13.03.2003 Gazette 2003/11)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 31.08.2001 US 943695
18.04.2002 US 124859

(71) Applicant: Exxonmobil Chemical Patents Inc.
Baytown, TX 77520-2101 (US)

(72) Inventors:
  • DING, Zhong, Y.
    Houston, TX 77059 (US)
  • LATTNER, James, R.
    Seabrook, TX 77586 (US)
  • VAN EGMOND, COR, F.
    Pasadena, TX 77505 (US)
  • BRINEN, Jeffrey, L.
    League City, TX 77573 (US)
  • NICOLETTI, Michael, P.
    Houston, TX 77059 (US)

(74) Representative: Mareschal, Anne et al
ExxonMobil Chemical Europe Inc.,P.O. Box 105
1830 Machelen
1830 Machelen (BE)

   


(54) LOW PRESSURE SEPARATION OF DIMETHYL ETHER FROM AN OLEFIN STREAM