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1. WO1997030788 - DEVICE AND METHOD FOR THE REGENERATION OF MIXED ION EXCHANGE RESIN BEDS

Publication Number WO/1997/030788
Publication Date 28.08.1997
International Application No. PCT/EP1997/000670
International Filing Date 13.02.1997
Chapter 2 Demand Filed 03.09.1997
IPC
B01J 49/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
49Regeneration or reactivation of ion-exchangers; Apparatus therefor
CPC
B01J 49/09
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
49Regeneration or reactivation of ion-exchangers; Apparatus therefor
05of fixed beds
09of mixed beds
B01J 49/18
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
49Regeneration or reactivation of ion-exchangers; Apparatus therefor
10of moving beds
18of mixed beds
Applicants
  • BRACCO S.P.A. [IT]/[IT] (AL, AM, AT, AZ, BA, BB, BE, BF, BG, BJ, BR, BY, CF, CG, CH, CI, CM, CN, CU, CZ, DE, DK, EE, ES, FI, FR, GA, GB, GE, GN, GR, HU, IE, IL, IS, IT, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MC, MD, MG, MK, ML, MN, MR, MW, MX, NE, NL, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SN, SZ, TD, TG, TJ, TM, TR, TT, UA, UG, UZ, VN, YU)
  • DIBRA S.P.A. [IT]/[IT] (AU, CA, GB)
  • VISCARDI, Carlo, Felice [IT]/[IT] (UsOnly)
  • AUSONIO, Marina [IT]/[IT] (UsOnly)
  • PARENTI, Mauro [IT]/[IT] (UsOnly)
Inventors
  • VISCARDI, Carlo, Felice
  • AUSONIO, Marina
  • PARENTI, Mauro
Agents
  • SPADARO, Marco
Priority Data
MI96A00031420.02.1996IT
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) DEVICE AND METHOD FOR THE REGENERATION OF MIXED ION EXCHANGE RESIN BEDS
(FR) APPAREIL ET PROCEDE POUR REGENERER DES LITS MIXTES DE RESINES ECHANGEUSES D'IONS
Abstract
(EN)
A device and a method for the regeneration of ion exchange resin mixed beds, used for the desalination of water or of aqueous solutions deriving from industrial processes (process solutions), that use two columns: the first treatment column (C1), containing a mixed bed of ion exchange resins, in which the cation exchange resins are regenerated, and a second column (C2) into which the anion exchange resins are transferred and regenerated, to be then reintroduced from the bottom into the above mentioned first column (C1), where they rise through the cation exchange resins intimately mixing themselves with them.
(FR)
L'invention concerne un appareil et un procédé pour régénérer des lits mixtes de résines échangeuses d'ions servant à dessaler l'eau ou des solutions aqueuses dérivées de procédés industriels (solutions de procédés). Cet appareil comprend deux colonnes: la première colonne de traitement (C1) contient un lit mixte de résines échangeuse d'ions où les résines échangeuses de cations sont régénérées et une seconde colonne (C2), dans laquelle les résines échangeuses d'anions sont transférées et régénérées, pour ensuite être réintroduites au bas de la première colonne (C1), d'où elles montent à travers la colonne de résine échangeuse de cations en s'y mélangeant intimement.
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