(19)
(11) EP 2 566 837 A2

(12)

(88) Date of publication A3:
01.03.2012

(43) Date of publication:
13.03.2013 Bulletin 2013/11

(21) Application number: 11720937.9

(22) Date of filing: 06.05.2011
(51) International Patent Classification (IPC): 
C07C 29/149(2006.01)
(86) International application number:
PCT/US2011/035577
(87) International publication number:
WO 2011/140477 (10.11.2011 Gazette 2011/45)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

(30) Priority: 01.04.2011 US 78754
06.08.2010 US 852269
07.05.2010 US 332699 P

(71) Applicant: Celanese International Corporation
Dallas, TX 75234 (US)

(72) Inventors:
  • WARNER, Jay, R.
    Houston Texas 77059 (US)
  • WEINER, Heiko
    Pasadena Texas 77059 (US)
  • BOWER, Nathan
    Houston Texas 77007 (US)
  • CHAPMAN, Josefina, T.
    Houston Texas 77059 (US)
  • GRUSENDORF, Gerald
    Rosharon Texas 77583 (US)
  • WOLLRAB, Radmila
    Pasadena Texas 77505 (US)
  • JOHNSTON, Victor, J.
    Houston Texas 77059 (US)

(74) Representative: Serravalle, Marco 
Serravalle SAS Via Matteotti, 21/23
26854 Cornegliano Laudense (LO)
26854 Cornegliano Laudense (LO) (IT)

   


(54) PROCESS FOR PURIFYING ETHANOL