Search International and National Patent Collections
Some content of this application is unavailable at the moment.
If this situation persists, please contact us atFeedback&Contact
1. (WO2009060424) PROCESSES FOR THE SEPARATION OF SOLUTES FROM SOLUTIONS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2009/060424 International Application No.: PCT/IL2008/001302
Publication Date: 14.05.2009 International Filing Date: 28.09.2008
IPC:
B01D 11/04 (2006.01) ,C02F 1/26 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
11
Solvent extraction
04
of solutions which are liquid
C CHEMISTRY; METALLURGY
02
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
F
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1
Treatment of water, waste water, or sewage
26
by extraction
Applicants:
TATE & LYLE INGREDIENTS AMERICAS, INC. [US/US]; 200 East Eldorado Street Decatur, Illinois 62521, US (AllExceptUS)
VITNER, Asher [IL/IL]; IL (UsOnly)
JANSEN, Robert [US/PT]; PT (UsOnly)
BANIEL, Avraham [IL/IL]; IL (UsOnly)
Inventors:
VITNER, Asher; IL
JANSEN, Robert; PT
BANIEL, Avraham; IL
Agent:
WOLFF, BREGMAN AND GOLLER; P.O.Box 1352 Jerusalem 91013, IL
Priority Data:
187,20006.11.2007IL
Title (EN) PROCESSES FOR THE SEPARATION OF SOLUTES FROM SOLUTIONS
(FR) PROCÉDÉS DE SÉPARATION DE SOLUTÉS DE PARTIR DE SOLUTIONS
Abstract:
(EN) The present invention provides a process for the recovery of solutes from a first aqueous solution comprising equilibrating said first aqueous solution with a first low water miscibility solvent at a temperature higher than room temperature so as to form at least one second solvent phase that is water-rich and low in solutes, and a second further optionally aqueous phase containing said solutes, wherein the temperature of the solutes-water-solvent system is adjusted to a zone of the system, defined as the inversion distribution temperature zone, lying between 30°C below the CST of said water-solvent system and 5O°C above the CST of said system, characterized in that said second solvent phase is separated from said second further phase and cooled to induce at least one separation of a third aqueous phase and a third solvent phase from said second solvent phase and wherein solvent from said third solvent phase is recycled for equilibration with said first aqueous phase.
(FR) La présente invention concerne un procédé pour la récupération de solutés à partir d'une première solution aqueuse comportant l'équilibrage de ladite première solution aqueuse avec un premier solvant de faible miscibilité à l'eau à une température supérieure à la température ambiante de façon à former au moins une seconde phase de solvant qui est riche en eau et pauvre en solutés, et facultativement une seconde autre phase aqueuse contenant lesdits solutés, la température du système solutés-eau-solvant étant réglée à une zone du système, définie comme étant la zone de température de distribution d'inversion, se situant entre 30°C au-dessous de la CST dudit système eau-solvant et 50°C au-dessus de la CST dudit système. Le procédé est caractérisé en ce que ladite seconde phase de solvant est séparée de ladite autre seconde phase et refroidie pour induire au moins une séparation d'une troisième phase aqueuse et d'une troisième phase de solvant provenant de ladite seconde phase de solvant, le solvant provenant de ladite troisième phase de solvant étant recyclé pour un équilibrage avec ladite première phase aqueuse.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, 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, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MT, NL, NO, PL, PT, RO, SE, SI, SK, 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)