(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