(19)
(11) EP 2 822 674 A1

(12)

(43) Date of publication:
14.01.2015 Bulletin 2015/03

(21) Application number: 13758618.6

(22) Date of filing: 20.02.2013
(51) International Patent Classification (IPC): 
B01D 61/14(2006.01)
C01D 3/08(2006.01)
 C01D 3/06(2006.01)
(86) International application number:
PCT/CA2013/050131
(87) International publication number:
WO 2013/131183 (12.09.2013 Gazette 2013/37)
(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
Designated Extension States:
BA ME

(30) Priority: 07.03.2012 US 201261607722 P

(71) Applicant: Chemetics Inc.
Vancouver, British Columbia V5M 0A5 (CA)

(72) Inventors:
  • ECKERT, Norbert
    West Vancouver, British Columbia V7V 3K7 (CA)
  • DRACKETT, Thomas
    North Vancouver, British Columbia V7K 2R3 (CA)
  • BAILEY, Ian
    Vancouver, British Columbia V5M 0A5 (CA)
  • MERZ, Allison
    Vancouver, British Columbia V5W 1C4 (CA)
  • MOK, Felix
    Vancouver, British Columbia V5R 4M2 (CA)
  • LASHKARI, Siamak
    Vancouver, British Columbia V6B 0B5 (CA)
  • RAMASUBBU, Ganapathy
    Delta, British Columbia V4C 1L8 (CA)

(74) Representative: Beyer, Andreas 
Wuesthoff & Wuesthoff Patent- und Rechtsanwälte Schweigerstrasse 2
81541 München
81541 München (DE)

   


(54) NANOFILTRATION PROCESS FOR ENHANCED BRINE RECOVERY AND SULFATE REMOVAL