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1. (WO2012115769) REDUCING ALUMINOSILICATE SCALE IN THE BAYER PROCESS
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2012/115769    International Application No.:    PCT/US2012/024099
Publication Date: 30.08.2012 International Filing Date: 07.02.2012
IPC:
C07F 7/10 (2006.01), B01D 21/01 (2006.01)
Applicants: NALCO COMPANY [US/US]; 1601 W. Diehl Road Naperville, Illinois 60563-1198 (US) (For All Designated States Except US).
LA, Timothy [US/AU]; (AU) (For US Only).
KILDEA, John, D. [AU/AU]; (AU) (For US Only).
O'BRIEN, Kevin, L. [US/US]; (US) (For US Only).
PHILLIPS, Everett, C. [CA/US]; (US) (For US Only).
SAWANT, Kailas, B. [US/US]; (US) (For US Only).
SLINKMAN, David, H. [US/US]; (US) (For US Only).
SWIECINSKI, Frederick, J. [US/US]; (US) (For US Only).
CUI, Ji [CN/US]; (US) (For US Only)
Inventors: LA, Timothy; (AU).
KILDEA, John, D.; (AU).
O'BRIEN, Kevin, L.; (US).
PHILLIPS, Everett, C.; (US).
SAWANT, Kailas, B.; (US).
SLINKMAN, David, H.; (US).
SWIECINSKI, Frederick, J.; (US).
CUI, Ji; (US)
Agent: BISHOP, Joshua, D.; 1601 W. Diehl Road Napperville, IL 60563 (US)
Priority Data:
13/035,124 25.02.2011 US
Title (EN) REDUCING ALUMINOSILICATE SCALE IN THE BAYER PROCESS
(FR) RÉDUCTION DE DÉPÔT D'ALUMINOSILICATE DANS PROCÉDÉ BAYER
Abstract: front page image
(EN)The invention provides a method of inhibiting the accumulation of DSP scale in the liquor circuit of Bayer process equipment. The method includes adding one or more particular silane based small molecules to the liquor fluid circuit. These scale inhibitors reduce DSP scale formation and thereby increase fluid throughput, increase the amount of time Bayer process equipment can be operational and reduce the need for expensive and dangerous acid washes of Bayer process equipment. As a result, the invention provides a significant reduction in the total cost of operating a Bayer process
(FR)L'invention porte sur un procédé d'inhibition de l'accumulation de dépôt d'aluminosilicate (DSP) dans le circuit de liqueur d'un équipement du procédé Bayer. Le procédé comprend l'ajout d'une ou de plusieurs petites molécules à base de silane particulaires au circuit de liqueur fluide. Ces inhibiteurs de formation de dépôt réduisent la formation de dépôt de DSP et augmentent ainsi le débit de fluide sortant, augmentent la durée de service de l'équipement du procédé Bayer et réduisent la nécessité d'effectuer des lavages acides onéreux et dangereux de l'équipement de procédé Bayer. Par conséquent, l'invention permet une réduction importante du coût total d'exploitation d'un procédé Bayer.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)