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1. (WO2010085320) MEMBRANE RESTORATION
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2010/085320 International Application No.: PCT/US2010/000094
Publication Date: 29.07.2010 International Filing Date: 15.01.2010
Chapter 2 Demand Filed: 17.11.2010
IPC:
B01D 61/52 (2006.01) ,B01D 65/02 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
61
Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
42
Electrodialysis; Electro-osmosis
44
Ion-selective electrodialysis
52
Accessories; Auxiliary operation
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
65
Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
02
Membrane cleaning or sterilisation
Applicants:
DOW GLOBAL TECHNOLOGIES LLC [US/US]; 2040 Dow Center Midland, MI 48674, US (AllExceptUS)
ZHOU, Jianqing [DE/DE]; DE (UsOnly)
Inventors:
ZHOU, Jianqing; DE
Agent:
HUEBSCH, Joseph, C.; 1221 Nicollet Avenue, Suite 500 Minneapolis, MN 55403, US
Priority Data:
61/205,75423.01.2009US
Title (EN) MEMBRANE RESTORATION
(FR) RESTAURATION D'UNE MEMBRANE
Abstract:
(EN) Embodiments include membrane restoration process. A membrane can be restored by replacing an anolyte and a catholyte of a cell with a solution having an organic acid. The cell can include an anode, a cathode and a membrane fouled with a metal. A cheleate can be formed with the metal and the organic acid of the solution and an electric current can be provided between the anode and the cathode of the cell to protect the cell from corrosion while forming the chelate.
(FR) Des modes de réalisation de l'invention comprennent un procédé de restauration d'une membrane. On peut restaurer une membrane en remplaçant un anolyte et un catholyte d'une cellule par une solution ayant un acide organique. La cellule peut comprendre une anode, une cathode et une membrane encrassée par un métal. Un chélate peut être formé avec le métal et l'acide organique de la solution, et on peut faire passer un courant électrique entre l'anode et la cathode de la cellule pour protéger la cellule de la corrosion tout en formant le chélate.
front page image
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, RO, RS, RU, 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 (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, MK, MT, NL, NO, PL, PT, RO, 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)
Also published as:
EP2389236JP2012515848CN102292143KR1020110107394BRPI1005365IN5351/CHENP/2011