(19)
(11) EP 2 688 837 A1

(12)

(43) Date of publication:
29.01.2014 Bulletin 2014/05

(21) Application number: 11712724.1

(22) Date of filing: 22.03.2011
(51) International Patent Classification (IPC): 
C01B 25/22(2006.01)
(86) International application number:
PCT/US2011/029319
(87) International publication number:
WO 2012/128755 (27.09.2012 Gazette 2012/39)
(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

(71) Applicant: Cytec Technology Corp.
Wilmington, DE 19801 (US)

(72) Inventors:
  • RAVISHANKAR, Sathanjheri
    Shelton, CT 06484 (US)
  • WANG, Bing
    Brookfield, CT 06804 (US)

(74) Representative: Deckers, Hellmuth Alexander 
European Patent Attorney Breitbachstrasse 15
55218 Ingelheim am Rhein
55218 Ingelheim am Rhein (DE)

   


(54) PREVENTING OR REDUCING SCALE IN WET-PROCESS PHOSPHORIC ACID PRODUCTION