(19)
(11) EP 1 618 070 A1

(12)

(43) Date of publication:
25.01.2006 Bulletin 2006/04

(21) Application number: 04713044.8

(22) Date of filing: 20.02.2004
(51) International Patent Classification (IPC): 
C02F 1/44(2000.01)
 B01D 61/04(1990.01)
(86) International application number:
PCT/EP2004/001683
(87) International publication number:
WO 2004/076362 (10.09.2004 Gazette 2004/37)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
Designated Extension States:
AL LT LV MK

(30) Priority: 25.02.2003 IT MI20030329

(71) Applicant: Arkema
92800 Puteaux (FR)

(72) Inventors:
  • LUPERI, Massimo
    I-20152 Milano (IT)
  • RIGAMONTI, Marco
    I-20154 Milano (IT)
  • REDAELLI, Vincenzo
    I-20055 Renate, Milano (IT)
  • PANETTA, Maurizio
    I-20010 Bareggio, Milano (IT)
  • GIUDICI, Dario
    I-20017 Rho, Milano (IT)

   


(54) A PROCESS FOR THE RECOVERY OF METHACRYLIC ACID FROM ITS AQUEOUS DILUTED SOLUTIONS BY REVERSE OSMOSIS